{"cve": [{"lastseen": "2020-10-03T11:48:13", "description": "Microsoft Internet Explorer 5.01 through 6 allows remote attackers to execute arbitrary code via by instantiating the (1) Mdt2gddr.dll, (2) Mdt2dd.dll, and (3) Mdt2gddo.dll COM objects as ActiveX controls, which leads to memory corruption.", "edition": 5, "cvss3": {}, "published": "2006-04-11T23:02:00", "title": "CVE-2006-1186", "type": "cve", "cwe": ["NVD-CWE-Other"], "bulletinFamily": "NVD", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": true, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 10.0, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2006-1186"], "modified": "2018-10-12T21:39:00", "cpe": ["cpe:/a:microsoft:ie:5.0.1", "cpe:/a:microsoft:ie:6", "cpe:/a:microsoft:ie:5.1", "cpe:/a:microsoft:ie:5.5", "cpe:/a:microsoft:ie:5.01"], "id": "CVE-2006-1186", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2006-1186", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}, "cpe23": ["cpe:2.3:a:microsoft:ie:5.1:*:*:*:*:*:*:*", "cpe:2.3:a:microsoft:ie:5.01:sp2:*:*:*:*:*:*", "cpe:2.3:a:microsoft:ie:5.5:preview:*:*:*:*:*:*", "cpe:2.3:a:microsoft:ie:5.5:sp1:*:*:*:*:*:*", "cpe:2.3:a:microsoft:ie:5.0.1:*:*:*:*:*:*:*", "cpe:2.3:a:microsoft:ie:6:windows_server_2003_sp1:*:*:*:*:*:*", "cpe:2.3:a:microsoft:ie:5.01:sp4:*:*:*:*:*:*", "cpe:2.3:a:microsoft:ie:5.01:*:*:*:*:*:*:*", "cpe:2.3:a:microsoft:ie:5.0.1:sp4:*:*:*:*:*:*", "cpe:2.3:a:microsoft:ie:5.0.1:sp1:*:*:*:*:*:*", "cpe:2.3:a:microsoft:ie:5.0.1:*:windows_98:*:*:*:*:*", "cpe:2.3:a:microsoft:ie:5.0.1:*:windows_2000:*:*:*:*:*", "cpe:2.3:a:microsoft:ie:5.01:sp3:*:*:*:*:*:*", "cpe:2.3:a:microsoft:ie:5.5:sp2:*:*:*:*:*:*", "cpe:2.3:a:microsoft:ie:5.0.1:sp3:*:*:*:*:*:*", "cpe:2.3:a:microsoft:ie:5.0.1:sp2:*:*:*:*:*:*", "cpe:2.3:a:microsoft:ie:5.01:sp1:*:*:*:*:*:*", "cpe:2.3:a:microsoft:ie:5.0.1:*:windows_95:*:*:*:*:*", "cpe:2.3:a:microsoft:ie:5.01:windows_2000_sp4:*:*:*:*:*:*", "cpe:2.3:a:microsoft:ie:5.5:*:*:*:*:*:*:*", "cpe:2.3:a:microsoft:ie:5.0.1:*:windows_nt_4.0:*:*:*:*:*"]}], "cert": [{"lastseen": "2020-09-18T20:43:25", "bulletinFamily": "info", "cvelist": ["CVE-2005-1990", "CVE-2005-2087", "CVE-2005-2127", "CVE-2005-2831", "CVE-2006-1186", "CVE-2006-1303", "CVE-2006-3638"], "description": "### Overview \n\nMicrosoft Internet Explorer (IE) allows instantiation of COM objects not designed for use in the browser, which may allow a remote attacker to execute arbitrary code or crash IE.\n\n### Description \n\n**Microsoft COM**\n\n[Microsoft COM](<http://www.microsoft.com/com/default.mspx>) is a technology that allows programmers to create reusable software components that can be incorporated into applications to extend their functionality. Microsoft COM includes COM+, Distributed COM (DCOM), and ActiveX Controls. \n \n**ActiveX controls** \n \nActiveX controls are COM objects that have visual elements. ActiveX controls are traditionally designed to be used in Internet Explorer. A web page can make use of an ActiveX control in various ways, such as by referencing its Class Identifier (CLSID) in an HTML OBJECT tag. \n \n**The Problem** \n \nInternet Explorer will attempt to instantiate any COM object that is referenced by a web page. Certain COM objects that are not designed for use in Internet Explorer may cause unexpected results, such as executing arbitrary code or crashing the browser. \n \nExploit code for these vulnerabilities are publicly available. \n \n--- \n \n### Impact \n\nBy convincing a user to view a specially crafted HTML document (e.g., a web page, an HTML email message, or an email attachment), an attacker could execute arbitrary code with the privileges of the user. The attacker could also cause IE (or the program using the WebBrowser control) to crash. \n \n--- \n \n### Solution \n\n**Apply An Update** \nApply the appropriate update, as specified in Microsoft Security Bulletin [MS06-042](<http://www.microsoft.com/technet/security/Bulletin/MS06-042.mspx>). This update sets the \"kill bit\" for certain CLSID values of COM objects known to be vulnerable. The MS06-042 update is similar to [MS06-021](<http://www.microsoft.com/technet/security/Bulletin/MS06-021.mspx>)[](<http://www.microsoft.com/technet/security/bulletin/ms05-054.mspx>), [MS06-013](<http://www.microsoft.com/technet/security/Bulletin/MS06-013.mspx>), [MS05-054](<http://www.microsoft.com/technet/security/bulletin/ms05-054.mspx>), [MS05-037](<http://www.microsoft.com/technet/security/bulletin/ms05-037.mspx>), [MS05-038](<http://www.microsoft.com/technet/security/bulletin/ms05-038.mspx>), and [MS05-052](<http://www.microsoft.com/technet/security/bulletin/ms05-052.mspx>), but it includes additional COM objects. \n \n--- \n \n \nMicrosoft has listed several workarounds in the [Microsoft Security Bulletin](<http://www.microsoft.com/technet/security/bulletin/ms05-054.mspx>), including disabling ActiveX controls. \n \n--- \n \n### Vendor Information\n\n959049\n\nFilter by status: All Affected Not Affected Unknown\n\nFilter by content: __ Additional information available\n\n__ Sort by: Status Alphabetical\n\nExpand all\n\n**Javascript is disabled. Click here to view vendors.**\n\n### Microsoft Corporation __ Affected\n\nNotified: September 01, 2005 Updated: August 08, 2006 \n\n### Status\n\nAffected\n\n### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Vendor Information \n\nThe vendor has not provided us with any further information regarding this vulnerability.\n\n### Addendum\n\nPlease se Microsoft Security Bulletin [MS06-042](<http://www.microsoft.com/technet/security/Bulletin/MS06-042.mspx>).\n\nIf you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:cert@cert.org?Subject=VU%23959049 Feedback>).\n\n \n\n\n### CVSS Metrics \n\nGroup | Score | Vector \n---|---|--- \nBase | | \nTemporal | | \nEnvironmental | | \n \n \n\n\n### References \n\n * <http://www.microsoft.com/technet/security/bulletin/MS05-037.mspx>\n * <http://www.microsoft.com/technet/security/bulletin/MS05-038.mspx>\n * <http://www.microsoft.com/technet/security/Bulletin/MS05-052.mspx>\n * <http://www.microsoft.com/technet/security/Bulletin/MS05-054.mspx>\n * <http://www.microsoft.com/technet/security/Bulletin/MS06-013.mspx>\n * <http://www.microsoft.com/technet/security/Bulletin/MS06-021.mspx>\n * <http://www.microsoft.com/technet/security/bulletin/ms06-042.mspx>\n * <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2087>\n * <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-1990>\n * <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2127>\n * <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2831>\n * <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1186>\n * <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2006-1303>\n * <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3638>\n * <http://www.nsfocus.com/english/homepage/research/0502.htm>\n * <http://secunia.com/advisories/16373/>\n * <http://www.securityfocus.com/bid/14511>\n * <http://www.securiteam.com/windowsntfocus/5WP0B00GLC.html>\n * <http://www.osvdb.org/displayvuln.php?osvdb_id=18612>\n\n### Acknowledgements\n\nThanks to Microsoft for reporting this vulnerability.\n\nThis document was written by Will Dormann.\n\n### Other Information\n\n**CVE IDs:** | [CVE-2005-1990](<http://web.nvd.nist.gov/vuln/detail/CVE-2005-1990>) \n---|--- \n**Severity Metric:** | 45.56 \n**Date Public:** | 2005-08-09 \n**Date First Published:** | 2005-08-09 \n**Date Last Updated: ** | 2006-08-09 22:06 UTC \n**Document Revision: ** | 38 \n", "modified": "2006-08-09T22:06:00", "published": "2005-08-09T00:00:00", "id": "VU:959049", "href": "https://www.kb.cert.org/vuls/id/959049", "type": "cert", "title": "Multiple COM objects cause memory corruption in Microsoft Internet Explorer", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}], "securityvulns": [{"lastseen": "2018-08-31T11:10:17", "bulletinFamily": "software", "cvelist": ["CVE-2006-1186", "CVE-2006-1245", "CVE-2006-1185", "CVE-2006-1388", "CVE-2006-0012", "CVE-2006-1188", "CVE-2006-1359", "CVE-2006-0003", "CVE-2006-1189"], "description": "\r\n-----BEGIN PGP SIGNED MESSAGE-----\r\nHash: SHA1\r\n\r\n\r\n\r\n National Cyber Alert System\r\n\r\n Technical Cyber Security Alert TA06-101A\r\n\r\n\r\nMicrosoft Windows and Internet Explorer Vulnerabilities\r\n\r\n Original release date: April 11, 2006\r\n Last revised: --\r\n Source: US-CERT\r\n\r\n\r\nSystems Affected\r\n\r\n * Microsoft Windows\r\n * Microsoft Internet Explorer\r\n\r\n For more complete information, refer to the Microsoft Security\r\n Bulletin Summary for April 2006.\r\n\r\n\r\nOverview\r\n\r\n Microsoft has released updates that address critical vulnerabilities\r\n in Microsoft Windows and Internet Explorer. Exploitation of these\r\n vulnerabilities could allow a remote, unauthenticated attacker to\r\n execute arbitrary code or cause a denial of service on a vulnerable\r\n system.\r\n\r\n\r\nI. Description\r\n\r\n Microsoft Security Bulletin Summary for April 2006 addresses\r\n vulnerabilities in Microsoft Windows and Internet Explorer. Further\r\n information is available in the following US-CERT Vulnerability Notes:\r\n\r\n\r\n VU#876678 - Microsoft Internet Explorer createTextRange()\r\n vulnerability \r\n\r\n Microsoft Internet Explorer fails to properly handle the\r\n createTextRange() DHTML method, possibly allowing a remote,\r\n unauthenticated attacker to execute arbitrary code.\r\n (CVE-2006-1359)\r\n\r\n\r\n VU#984473 - Microsoft Internet Explorer contains overflow in\r\n processing script action handlers \r\n\r\n A vulnerability in the Microsoft Internet Explorer web browser could\r\n allow a remote attacker to crash the browser or possibly execute\r\n arbitrary code on a vulnerable system.\r\n (CVE-2006-1245)\r\n\r\n\r\n VU#434641 - Microsoft Internet Explorer may automatically execute HTA\r\n files \r\n\r\n Microsoft Internet Explorer fails to properly handle HTA files. This\r\n vulnerability may allow a remote attacker to execute arbitrary code.\r\n (CVE-2006-1388)\r\n\r\n\r\n VU#503124 - Microsoft Internet Explorer fails to handle specially\r\n crafted, malformed HTML \r\n\r\n Microsoft Internet Explorer fails to properly handle malformed HTML.\r\n This vulnerability may allow a remote attacker to execute arbitrary\r\n code on a vulnerable system.\r\n (CVE-2006-1185)\r\n\r\n\r\n VU#959049 - Multiple COM objects cause memory corruption in Microsoft\r\n Internet Explorer \r\n\r\n Microsoft Internet Explorer allows instantiation of COM objects not\r\n designed for use in the browser, which may allow a remote attacker to\r\n execute arbitrary code or crash IE.\r\n (CVE-2006-1186)\r\n\r\n\r\n VU#824324 - Microsoft Internet Explorer fails to properly handle HTML\r\n elements with a specially crafted tag \r\n\r\n Microsoft Internet Explorer fails to properly handle HTML element\r\n tags, which may allow a remote, unauthenticated attacker to execute\r\n arbitrary code.\r\n (CVE-2006-1188)\r\n\r\n\r\n VU#341028 - Microsoft Internet Explorer fails to properly handle\r\n double-byte characters in specially crafted URLs \r\n\r\n Microsoft Internet Explorer fails to properly handle double-byte\r\n characters in URLs, which may allow a remote, unauthenticated attacker\r\n to execute arbitrary code.\r\n (CVE-2006-1189)\r\n\r\n\r\n VU#234812 - Microsoft Windows contains a vulnerability in the\r\n RDS.Dataspace ActiveX control in MDAC \r\n\r\n Microsoft Windows fails to properly handle the RDS.Dataspace ActiveX\r\n control possibly allowing a remote attacker to execute arbitrary code.\r\n (CVE-2006-0003)\r\n\r\n\r\n VU#641460 - Microsoft Windows Explorer fails to properly handle COM\r\n objects \r\n\r\n Microsoft Windows fails to properly handle COM Objects. This\r\n vulnerability may allow a remote unauthenticated attacker to execute\r\n arbitrary code on a vulnerable system.\r\n (CVE-2006-0012)\r\n\r\n\r\nII. Impact\r\n\r\n A remote, unauthenticated attacker could execute arbitrary code with\r\n the privileges of the user. If the user is logged on with\r\n administrative privileges, the attacker could take complete control of\r\n an affected system. An attacker may also be able to cause a denial of\r\n service.\r\n\r\n\r\nIII. Solution\r\n\r\nApply Updates\r\n\r\n Microsoft has provided updates for these vulnerabilities in the\r\n Security Bulletins and on the Microsoft Update site.\r\n\r\nWorkarounds\r\n\r\n Please see the US-CERT Vulnerability Notes for workarounds. Many of\r\n these vulnerabilities can be mitigated by following the instructions\r\n listed in the Securing Your Web Browser document.\r\n\r\nAppendix A. References\r\n\r\n * Microsoft Security Bulletin Summary for April 2006 -\r\n <http://www.microsoft.com/technet/security/bulletin/ms06-apr.mspx>\r\n\r\n * US-CERT Vulnerability Note VU#876678 -\r\n <http://www.kb.cert.org/vuls/id/876678>\r\n\r\n * US-CERT Vulnerability Note VU#984473 -\r\n <http://www.kb.cert.org/vuls/id/984473>\r\n\r\n * US-CERT Vulnerability Note VU#434641 -\r\n <http://www.kb.cert.org/vuls/id/434641>\r\n\r\n * US-CERT Vulnerability Note VU#503124 -\r\n <http://www.kb.cert.org/vuls/id/503124>\r\n\r\n * US-CERT Vulnerability Note VU#959049 -\r\n <http://www.kb.cert.org/vuls/id/959049>\r\n\r\n * US-CERT Vulnerability Note VU#824324 -\r\n <http://www.kb.cert.org/vuls/id/824324>\r\n\r\n * US-CERT Vulnerability Note VU#341028 -\r\n <http://www.kb.cert.org/vuls/id/341028>\r\n\r\n * US-CERT Vulnerability Note VU#234812 -\r\n <http://www.kb.cert.org/vuls/id/234812>\r\n\r\n * US-CERT Vulnerability Note VU#641460 -\r\n <http://www.kb.cert.org/vuls/id/641460>\r\n\r\n * CVE-2006-1359 -\r\n <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1359>\r\n\r\n * CVE-2006-1245 -\r\n <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1245>\r\n\r\n * CVE-2006-1388 -\r\n <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1388>\r\n\r\n * CVE-2006-1185 -\r\n <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1185>\r\n\r\n * CVE-2006-1186 -\r\n <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1186>\r\n\r\n * CVE-2006-1188 -\r\n <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1188>\r\n\r\n * CVE-2006-1189 -\r\n <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1189>\r\n\r\n * CVE-2006-0003 -\r\n <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0003>\r\n\r\n * CVE-2006-0012 -\r\n <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0012>\r\n\r\n * Microsoft Update - <https://update.microsoft.com/microsoftupdate>\r\n\r\n * Securing Your Web Browser -\r\n <http://www.us-cert.gov/reading_room/securing_browser/#Internet_Ex\r\n plorer>\r\n\r\n\r\n ____________________________________________________________________\r\n\r\n The most recent version of this document can be found at:\r\n\r\n <http://www.us-cert.gov/cas/techalerts/TA06-101A.html>\r\n ____________________________________________________________________\r\n\r\n Feedback can be directed to US-CERT Technical Staff. Please send\r\n email to <cert@cert.org> with "TA06-101A Feedback VU#876678" in the\r\n subject.\r\n ____________________________________________________________________\r\n\r\n For instructions on subscribing to or unsubscribing from this\r\n mailing list, visit <http://www.us-cert.gov/cas/signup.html>.\r\n ____________________________________________________________________\r\n\r\n Produced 2006 by US-CERT, a government organization.\r\n\r\n Terms of use:\r\n\r\n <http://www.us-cert.gov/legal.html>\r\n ____________________________________________________________________\r\n\r\n\r\nRevision History\r\n\r\n Apr 11, 2006: Initial release\r\n\r\n\r\n\r\n\r\n\r\n-----BEGIN PGP SIGNATURE-----\r\nVersion: GnuPG v1.2.1 (GNU/Linux)\r\n\r\niQEVAwUBRDwj9n0pj593lg50AQInJggAoOBNa20SU8JukBoK5elr5vWOLcAjycHt\r\nCg0+064ncCpQXoWiYPrLGVzg4/MCTVUygbYl85cePp5cHSHqpfuYXoBuZwSKu36+\r\nolQdkbU1ejViA8A0XPsQ3EgtIRlDZSgL1ncYlRM8QxK8CF7QV616ta8q6H/3EDMM\r\ni+tXy6gzQMqJeUthopzGcfpf6U5Qu9PCk/+Pj66GfFhHpARanLef2H28WFRazC+I\r\nR+vLGLFLV0gp1Iy7t267l1BhN1w1z+fXD0WwYkiTwb0mzeize8Amdqlb5c4Vn4wh\r\nHAF/XGiCe5qkMhM7kRLA70JsNfSkI38JPHWSo9/a04wFBKENCAwNpA==\r\n=w6IC\r\n-----END PGP SIGNATURE-----", "edition": 1, "modified": "2006-04-12T00:00:00", "published": "2006-04-12T00:00:00", "id": "SECURITYVULNS:DOC:12171", "href": "https://vulners.com/securityvulns/SECURITYVULNS:DOC:12171", "title": "US-CERT Technical Cyber Security Alert TA06-101A -- Microsoft Windows and Internet Explorer Vulnerabilities", "type": "securityvulns", "cvss": {"score": 10.0, "vector": "AV:NETWORK/AC:LOW/Au:NONE/C:COMPLETE/I:COMPLETE/A:COMPLETE/"}}, {"lastseen": "2018-08-31T11:10:17", "bulletinFamily": "software", "cvelist": ["CVE-2006-1192", "CVE-2006-1186", "CVE-2006-1245", "CVE-2006-1185", "CVE-2006-1388", "CVE-2006-1188", "CVE-2006-1190", "CVE-2006-1359", "CVE-2006-1191", "CVE-2006-1189"], "description": "Microsoft Security Bulletin MS06-013\r\nCumulative Security Update for Internet Explorer (912812)\r\nPublished: April 11, 2006\r\n\r\nVersion: 1.0\r\nSummary\r\n\r\nWho should read this document: Customers who use Microsoft Windows\r\n\r\nImpact of Vulnerability: Remote Code Execution\r\n\r\nMaximum Severity Rating: Critical\r\n\r\nRecommendation: Customers should apply the update immediately.\r\n\r\nSecurity Update Replacement: This bulletin replaces several prior security updates. See the frequently asked questions (FAQ) section of this bulletin for the complete list.\r\n\r\nCaveats: Microsoft Knowledge Base Article 912812 documents the currently known issues that customers may experience when they install this security update. The article also documents recommended solutions for these issues. For more information, see Microsoft Knowledge Base Article 912812.\r\n\r\nThis security update also replaces the cumulative update for Internet Explorer that was released for Windows XP Service Pack 2, Windows Server 2003 Service Pack 1, Windows XP Professional x64 Edition, Windows Server 2003 x64 Edition family, and Windows Server 2003 with Service Pack 1 for Itanium-based Systems on February 28, 2006. This update was discussed in Microsoft Security Advisory (912945): Non-Security Update for Internet Explorer. For more information about this update, see Microsoft Knowledge Base Article 912945.\r\n\r\nCompatibility Patch \u2013 To help enterprise customers who need more time to prepare for the ActiveX update changes discussed in Microsoft Knowledge Base Article 912945 and included in Microsoft Security Bulletin MS06-013, Microsoft is releasing a Compatibility Patch on April 11, 2006. As soon as it is deployed, the Compatibility Patch will temporarily return Internet Explorer to the previous functionality for handling ActiveX controls. This Compatibility Patch will function until an Internet Explorer update is released as part of the June update cycle, at which time the changes to the way Internet Explorer handles ActiveX controls will be permanent. This compatibility patch may require an additional restart for systems it is deployed on. For more information, see Microsoft Knowledge Base Article 917425.\r\n\r\nTested Software and Security Update Download Locations:\r\n\r\nAffected Software:\r\n\u2022\t\r\n\r\nMicrosoft Windows 2000 Service Pack 4\r\n\u2022\t\r\n\r\nMicrosoft Windows XP Service Pack 1 and Microsoft Windows XP Service Pack 2\r\n\u2022\t\r\n\r\nMicrosoft Windows XP Professional x64 Edition\r\n\u2022\t\r\n\r\nMicrosoft Windows Server 2003 and Microsoft Windows Server 2003 Service Pack 1\r\n\u2022\t\r\n\r\nMicrosoft Windows Server 2003 for Itanium-based Systems and Microsoft Windows Server 2003 with Service Pack 1 for Itanium-based Systems\r\n\u2022\t\r\n\r\nMicrosoft Windows Server 2003 x64 Edition family\r\n\u2022\t\r\n\r\nMicrosoft Windows 98, Microsoft Windows 98 Second Edition (SE), and Microsoft Windows Millennium Edition (ME) \u2013 Review the FAQ section of this bulletin for details about these operating systems.\r\n\r\nNote The security updates for Microsoft Windows Server 2003, Microsoft Windows Server 2003 Service Pack 1, and Microsoft Windows Server 2003 x64 Edition also apply to Microsoft Windows Server 2003 R2.\r\n\r\nTested Microsoft Windows Components:\r\n\r\nAffected Components:\r\n\u2022\t\r\n\r\nInternet Explorer 5.01 Service Pack 4 on Microsoft Windows 2000 Service Pack 4 \u2013 Download the update\r\n\u2022\t\r\n\r\nInternet Explorer 6 Service Pack 1 on Microsoft Windows 2000 Service Pack 4 or on Microsoft Windows XP Service Pack 1 \u2013 Download the update\r\n\u2022\t\r\n\r\nInternet Explorer 6 for Microsoft Windows XP Service Pack 2 \u2013 Download the update\r\n\u2022\t\r\n\r\nInternet Explorer 6 for Microsoft Windows Server 2003 and Microsoft Windows Server 2003 Service Pack 1 \u2013 Download the update\r\n\u2022\t\r\n\r\nInternet Explorer 6 for Microsoft Windows Server 2003 for Itanium-based Systems and Microsoft Windows Server 2003 with SP1 for Itanium-based Systems \u2013 Download the update\r\n\u2022\t\r\n\r\nInternet Explorer 6 for Microsoft Windows Server 2003 x64 Edition \u2013 Download the update\r\n\u2022\t\r\n\r\nInternet Explorer 6 for Microsoft Windows XP Professional x64 Edition \u2013 Download the update\r\n\u2022\t\r\n\r\nInternet Explorer 6 Service Pack 1 on Microsoft Windows 98, on Microsoft Windows 98 SE, or on Microsoft Windows Millennium Edition \u2013 Review the FAQ section of this bulletin for details about this version.\r\n\r\nThe software in this list has been tested to determine whether the versions are affected. Other versions either no longer include security update support or may not be affected. To determine the support life cycle for your product and version, visit the Microsoft Support Lifecycle Web site.\r\nTop of sectionTop of section\r\nGeneral Information\r\n\t\r\nExecutive Summary\r\n\r\nExecutive Summary:\r\n\r\nThis update resolves several newly-discovered, publicly and privately reported vulnerabilities. Each vulnerability is documented in its own \u201cVulnerability Details\u201d section of this bulletin.\r\n\r\nIf a user is logged on with administrative user rights, an attacker who successfully exploited the most severe of these vulnerabilities could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.\r\n\r\nWe recommend that customers apply the update immediately.\r\n\r\nSeverity Ratings and Vulnerability Identifiers:\r\nVulnerability Identifiers\tImpact of Vulnerability\tInternet Explorer 5.0 Service Pack 4\tInternet Explorer 6 Service Pack 1 (all supported operating system versions earlier than Windows Server 2003)\tInternet Explorer 6 for Windows Server 2003\tInternet Explorer 6 for Windows Server 2003 Service Pack 1\tInternet Explorer 6 for Windows XP Service Pack 2\r\n\r\nDHTML Method Call Memory Corruption Vulnerability - CVE-2006-1359\r\n\t\r\n\r\nRemote Code Execution\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nModerate\r\n\t\r\n\r\nModerate\r\n\t\r\n\r\nCritical\r\n\r\nMultiple Event Handler Memory Corruption Vulnerability - CVE-2006-1245\r\n\t\r\n\r\nRemote Code Execution\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nCritical\r\n\r\nHTA Execution Vulnerability - CVE-2006-1388\r\n\t\r\n\r\nRemote Code Execution\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nModerate\r\n\t\r\n\r\nModerate\r\n\t\r\n\r\nCritical\r\n\r\nHTML Parsing Vulnerability - CVE-2006-1185\r\n\t\r\n\r\nRemote Code Execution\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nNot applicable\r\n\t\r\n\r\nNot applicable\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nCritical\r\n\r\nCOM Object Instantiation Memory Corruption Vulnerability - CVE-2006-1186\r\n\t\r\n\r\nRemote Code Execution\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nModerate\r\n\t\r\n\r\nModerate\r\n\t\r\n\r\nCritical\r\n\r\nHTML Tag Memory Corruption Vulnerability - CVE-2006-1188\r\n\t\r\n\r\nRemote Code Execution\r\n\t\r\n\r\nNot applicable\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nCritical\r\n\r\nDouble Byte Character Parsing Memory Corruption Vulnerability - CVE-2006-1189\r\n\t\r\n\r\nRemote Code Execution\r\n\t\r\n\r\nNot applicable\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nNot applicable\r\n\t\r\n\r\nCritical\r\n\r\nScript Execution Vulnerability - CVE-2006-1190\r\n\t\r\n\r\nRemote Code Execution\r\n\t\r\n\r\nNot applicable\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nModerate\r\n\t\r\n\r\nModerate\r\n\t\r\n\r\nImportant\r\n\r\nCross-Domain Information Disclosure Vulnerability - CVE-2006-1191\r\n\t\r\n\r\nInformation Disclosure\r\n\t\r\n\r\nNot applicable\r\n\t\r\n\r\nNot applicable\r\n\t\r\n\r\nNot applicable\r\n\t\r\n\r\nModerate\r\n\t\r\n\r\nImportant\r\n\r\nAddress Bar Spoofing Vulnerability - CVE-2006-1192\r\n\t\r\n\r\nSpoofing\r\n\t\r\n\r\nModerate\r\n\t\r\n\r\nModerate\r\n\t\r\n\r\nModerate\r\n\t\r\n\r\nModerate\r\n\t\r\n\r\nModerate\r\n\r\nAggregate Severity of All Vulnerabilities\r\n\t\r\n\r\n \r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nCritical\r\n\r\nThis assessment is based on the types of systems that are affected by the vulnerability, their typical deployment patterns, and the effect that exploiting the vulnerability would have on them.\r\n\r\nNote The security updates for Microsoft Windows Server 2003, Microsoft Windows Server 2003 Service Pack 1, and Microsoft Windows Server 2003 x64 Edition also apply to Microsoft Windows Server 2003 R2.\r\n\r\nNote The severity ratings for non-x86 operating system versions map to the x86 operating systems versions as follows:\r\n\u2022\t\r\n\r\nThe Internet Explorer 6 for Windows XP Professional x64 Edition severity rating is the same as the Internet Explorer 6 for Windows XP Service Pack 2 severity rating.\r\n\u2022\t\r\n\r\nThe Internet Explorer 6 for Microsoft Windows Server 2003 for Itanium-based Systems and Windows Server 2003 x64 Edition severity rating is the same as the Internet Explorer 6 for Windows Server 2003 severity rating.\r\nTop of sectionTop of section\r\n\t\r\nFrequently asked questions (FAQ) related to this security update\r\n\r\nWhat updates does this release replace?\r\nThis security update replaces several prior security updates. The two most recent security bulletin IDs and affected operating systems are listed in the following table.\r\nBulletin ID\tInternet Explorer 5.01 Service Pack 4\tInternet Explorer 6 Service Pack 1 (all versions earlier than Windows Server 2003)\tInternet Explorer 6 for Windows Server 2003 \tInternet Explorer 6 for Windows Server 2003 Service Pack 1\tInternet Explorer 6 for Windows XP Service Pack 2\r\n\r\nMS05-054\r\n\t\r\n\r\nReplaced\r\n\t\r\n\r\nReplaced\r\n\t\r\n\r\nReplaced\r\n\t\r\n\r\nReplaced\r\n\t\r\n\r\nReplaced\r\n\r\nMS06-004\r\n\t\r\n\r\nReplaced\r\n\t\r\n\r\nNot applicable\r\n\t\r\n\r\nNot applicable\r\n\t\r\n\r\nNot applicable\r\n\t\r\n\r\nNot applicable\r\n\r\nNote This security update also replaces the cumulative update for Internet Explorer that was released for Windows XP Service Pack 2 and Windows Server 2003 Service Pack 1 on February 28, 2006. This update was discussed in Microsoft Security Advisory (912945): Non-Security Update for Internet Explorer. For more information about this update, see Microsoft Knowledge Base Article 912945.\r\n\r\nWhat are the known issues that customers may experience when they install this security update?\r\nMicrosoft Knowledge Base Article 912812 documents the currently known issues that customers may experience when they install this security update. The article also documents recommended solutions for these issues. For more information, see Microsoft Knowledge Base Article 912812.\r\n\r\nDoes this update contain any security-related changes to functionality?\r\nYes. Besides the changes that are listed in the \u201cVulnerability Details\u201d section of this bulletin and in addition to changes that were introduced in previous Internet Explorer security bulletins, this update introduces the following changes:\r\n\u2022\t\r\n\r\nThis cumulative security update includes defense in depth improvements so that ActiveX controls get consistent information about their hosting environment regardless of how they are instantiated.\r\n\u2022\t\r\n\r\nThis cumulative security update also sets the kill bit for two ActiveX controls that are included with Danim.dll and Dxtmsft.dll. These controls have been found to contain security vulnerabilities. To help protect customers who have these controls installed, this update prevents these controls from running in Internet Explorer. It does this by setting the kill bit for these controls. For more information about kill bits, see Microsoft Knowledge Base Article 240797. The class identifiers (CLSIDs) for these ActiveX controls are:\r\n\u2022\t\r\n\r\n42B07B28-2280-4937-B035-0293FB812781\r\n\u2022\t\r\n\r\n542FB453-5003-11CF-92A2-00AA00B8A733\r\n\r\nDoes this update contain any other changes to functionality?\r\nYes. Besides the changes that are listed in the \u201cVulnerability Details\u201d section of this bulletin, also included are non-security-related changes that were introduced in previous Internet Explorer bulletins.\r\n\r\nThis security update also replaces the cumulative update for Internet Explorer that was released for Windows XP Service Pack 2, Windows Server 2003 Service Pack 1, Windows XP Professional x64 Edition, Windows Server 2003 x64 Edition family, and Windows Server 2003 with Service Pack 1 for Itanium-based Systems on February 28, 2006. This update was discussed in Microsoft Security Advisory (912945): Non-Security Update for Internet Explorer. For more information about this update, see Microsoft Knowledge Base Article 912945.\r\n\r\nDoes this update contain the modifications detailed in Microsoft Security Advisory 912945 \u2013 Non-Security Update for Internet Explorer?\r\nYes, this security update contains the Internet Explorer Active X update previously released and discussed in Microsoft Knowledge Base Article 912945. To help enterprise customers who need more time to prepare for the ActiveX update discussed in Microsoft Knowledge Base Article 912945, Microsoft is releasing a Compatibility Patch. As soon as it is deployed, the Compatibility Patch will temporarily return Internet Explorer to the previous functionality for handling ActiveX controls. This Compatibility Patch will function until an Internet Explorer update is released as part of the June update cycle, at which time the changes to the way Internet Explorer handles ActiveX controls will be permanent. This compatibility patch may require an additional restart for systems it is deployed on. For more information, see Microsoft Knowledge Base Article 917425.\r\n\r\nWhat is the Internet Explorer Enhanced Security Configuration?\r\nInternet Explorer Enhanced Security Configuration is a group of preconfigured Internet Explorer settings that reduce the likelihood of a user or of an administrator downloading and running malicious Web content on a server. Internet Explorer Enhanced Security Configuration reduces this risk by modifying many security-related settings. This includes the settings on the Security tab and the Advanced tab in the Internet Options dialog box. Some of the important modifications include the following:\r\n\u2022\t\r\n\r\nSecurity level for the Internet zone is set to High. This setting disables scripts, ActiveX controls, Microsoft Java Virtual Machine (MSJVM), and file downloads.\r\n\u2022\t\r\n\r\nAutomatic detection of intranet sites is disabled. This setting assigns all intranet Web sites and all Universal Naming Convention (UNC) paths that are not explicitly listed in the Local intranet zone to the Internet zone.\r\n\u2022\t\r\n\r\nInstall On Demand and non-Microsoft browser extensions are disabled. This setting prevents Web pages from automatically installing components and prevents non-Microsoft extensions from running.\r\n\u2022\t\r\n\r\nMultimedia content is disabled. This setting prevents music, animations, and video clips from running.\r\n\r\nHow does the extended support for Windows 98, Windows 98 Second Edition, and Windows Millennium Edition affect the release of security updates for these operating systems?\r\nMicrosoft will only release security updates for critical security issues. Non-critical security issues are not offered during this support period. For more information about the Microsoft Support Lifecycle policies for these operating systems, visit the following Web site.\r\n\r\nFor more information about severity ratings, visit the following Web site.\r\n\r\nAre Windows 98, Windows 98 Second Edition, or Windows Millennium Edition critically affected by one or more of the vulnerabilities that are addressed in this security bulletin?\r\nYes. Windows 98, Windows 98 Second Edition, and Windows Millennium Edition are critically affected by the vulnerabilities that are addressed in this security bulletin. Critical security updates for these platforms are available, are provided as part of this security bulletin, and can be downloaded only from the Microsoft Update Web site or from the Windows Update Web site. For more information about severity ratings, visit the following Web site.\r\n\r\nExtended security update support for Microsoft Windows NT Workstation 4.0 Service Pack 6a and Windows 2000 Service Pack 2 ended on June 30, 2004. Extended security update support for Microsoft Windows NT Server 4.0 Service Pack 6a ended on December 31, 2004. Extended security update support for Microsoft Windows 2000 Service Pack 3 ended on June 30, 2005. I\u2019m still using one of these operating systems, what should I do?\r\nWindows NT Workstation 4.0 Service Pack 6a, Windows NT Server 4.0 Service Pack 6a, Windows 2000 Service Pack 2, and Windows 2000 Service Pack 3 have reached the end of their life cycles. It should be a priority for customers who have these operating system versions to migrate to supported versions to prevent potential exposure to vulnerabilities. For more information about the Windows Product Lifecycle, visit the following Microsoft Support Lifecycle Web site. For more information about the extended security update support period for these operating system versions, visit the Microsoft Product Support Services Web site.\r\n\r\nCustomers who require additional support for Windows NT 4.0 SP6a and Windows 2000 Service Pack 3 must contact their Microsoft account team representative, their Technical Account Manager, or the appropriate Microsoft partner representative for custom support options. Customers without an Alliance, Premier, or Authorized Contract can contact their local Microsoft sales office. For contact information, visit the Microsoft Worldwide Information Web site, select the country, and then click Go to see a list of telephone numbers. When you call, ask to speak with the local Premier Support sales manager.\r\n\r\nFor more information, see the Windows Operating System Product Support Lifecycle FAQ.\r\n\r\nSecurity update support for Microsoft Windows XP 64-Bit Edition Service Pack 1 (Itanium) and Microsoft Windows XP 64-Bit Edition Version 2003 (Itanium) ended on June 30, 2005. I\u2019m still using one of these operating systems, what should I do?\r\nWith the release of Windows XP Professional x64 Edition, Microsoft Windows XP 64-Bit Edition Service Pack 1 (Itanium) and Microsoft Windows XP 64-Bit Edition Version 2003 (Itanium) will no longer receive security update support. It should be a priority for customers who have these operating system versions to migrate to supported versions to prevent potential exposure to vulnerabilities. Microsoft will continue to fully support Windows Server 2003 for Itanium-based systems, Windows XP Professional x64 Edition, and Windows Server 2003 x64 Editions for 64-bit computing requirements. Microsoft continues to license and support Windows Server 2003 Enterprise and Datacenter editions for Itanium-based systems, and the 64-bit version of SQL Server 2000 Enterprise Edition. In the future, we will expand Itanium support to Visual Studio 2005, .NET Framework 2005, and SQL Server 2005.\r\n\r\nCustomers who require additional assistance about this issue must contact their Microsoft account team representative, their Technical Account Manager, or the appropriate Microsoft partner representative for information about the available migration options. Customers without an Alliance, Premier, or Authorized Contract can contact their local Microsoft sales office. For contact information, visit the Microsoft Worldwide Information Web site, select the country, and then click Go to see a list of telephone numbers. When you call, ask to speak with the local Premier Support sales manager.\r\n\r\nCan I use the Microsoft Baseline Security Analyzer (MBSA) 1.2.1 to determine whether this update is required?\r\nYes. MBSA 1.2.1 will determine whether this update is required. For more information about MBSA, visit the MBSA Web site.\r\n\r\nCan I use the Microsoft Baseline Security Analyzer (MBSA) 2.0 to determine whether this update is required?\r\nYes. MBSA 2.0 will determine whether this update is required. MBSA 2.0 can detect security updates for products that Microsoft Update supports. For more information about MBSA, visit the MBSA Web site.\r\n\r\nCan I use Systems Management Server (SMS) to determine whether this update is required?\r\nYes. SMS can help detect and deploy this security update.\r\n\r\nSMS can use the SMS SUS Feature pack, which includes the Security Update Inventory Tool (SUIT) to detect security updates. SMS SUIT uses the MBSA 1.2.1 engine for detection. Therefore, SMS SUIT has the same limitation listed earlier in this bulletin related to programs that MBSA does not detect.\r\n\r\nFor more information about the Security Update Inventory Tool, see the following Microsoft Web site. For more information about the limitations of the Security Update Inventory Tool, see Microsoft Knowledge Base Article 306460.\r\n\r\nThe SMS SUS Feature Pack also includes the Microsoft Office Inventory Tool that detects the required updates for Microsoft Office applications.\r\n\r\nSMS can use the SMS 2003 Inventory Tool for Microsoft Updates to detect security updates that are offered by Microsoft Update and that are supported by Windows Server Update Services. For more information about the SMS 2003 Inventory Tool for Microsoft Updates, visit the following Microsoft Web site.\r\n\r\nHowever, SMS 2.0 customers and SMS 2003 customers who are not using the Inventory Tool for Microsoft Updates must download and deploy an updated version of the Extended Security Update Inventory Tool to receive full detection and deployment for this update.\r\n\r\nFor more information about SMS, visit the SMS Web site.\r\nTop of sectionTop of section\r\n\t\r\nVulnerability Details\r\n\t\r\nDHTML Method Call Memory Corruption Vulnerability - CVE-2006-1359:\r\n\r\nA remote code execution vulnerability exists in the way Internet Explorer displays a Web page that contains certain unexpected method calls to HTML objects. As a result, system memory may be corrupted in such a way that an attacker could execute arbitrary code if a user visited a malicious Web site. An attacker who successfully exploited this vulnerability could take complete control of an affected system.\r\n\t\r\nMitigating Factors for DHTML Method Call Memory Corruption Vulnerability - CVE-2006-1359:\r\n\u2022\t\r\n\r\nIn a Web-based attack scenario, an attacker would have to host a Web site that contains a Web page that is used to exploit this vulnerability. An attacker would have no way to force users to visit a malicious Web site. Instead, an attacker would have to persuade them to visit the Web site, typically by getting them to click a link that takes them to the attacker's Web site.\r\n\u2022\t\r\n\r\nAn attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.\r\n\u2022\t\r\n\r\nThe Restricted sites zone helps reduce attacks that could try to exploit this vulnerability by preventing Active Scripting from being used when reading HTML e-mail messages. However, if a user clicks a link in an e-mail message, they could still be vulnerable to this issue through the Web-based attack scenario.\r\n\r\nBy default, Outlook Express 6, Outlook 2002, and Outlook 2003 open HTML e-mail messages in the Restricted sites zone. Additionally Outlook 2000 opens HTML e-mail messages in the Restricted sites zone if the Outlook E-mail Security Update has been installed. Outlook Express 5.5 Service Pack 2 opens HTML e-mail messages in the Restricted sites zone if Microsoft Security Bulletin MS04-018 has been installed.\r\n\u2022\t\r\n\r\nBy default, Internet Explorer on Windows Server 2003 runs in a restricted mode that is known as Enhanced Security Configuration. This mode mitigates this vulnerability in the e-mail vector because reading e-mail messages in plain text is the default configuration for Outlook Express. See the FAQ section of this security update for more information about Internet Explorer Enhanced Security Configuration.\r\nTop of sectionTop of section\r\n\t\r\nWorkarounds for DHTML Method Call Memory Corruption Vulnerability - CVE-2006-1359:\r\n\r\nMicrosoft has tested the following workarounds. While these workarounds will not correct the underlying vulnerability, they help block known attack vectors. When a workaround reduces functionality, it is identified in the following section.\r\n\u2022\t\r\n\r\nConfigure Internet Explorer to prompt before running Active Scripting or to disable Active Scripting in the Internet and Local intranet security zone\r\n\r\nYou can help protect against this vulnerability by changing your settings to prompt before running Active Scripting or to disable Active Scripting in the Internet and Local intranet security zone. To do this, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nIn Internet Explorer, click Internet Options on the Tools menu.\r\n\r\n2.\r\n\t\r\n\r\nClick the Security tab.\r\n\r\n3.\r\n\t\r\n\r\nClick Internet, and then click Custom Level.\r\n\r\n4.\r\n\t\r\n\r\nUnder Settings, in the Scripting section, under Active Scripting, click Prompt or Disable, and then click OK.\r\n\r\n5.\r\n\t\r\n\r\nClick Local intranet, and then click Custom Level.\r\n\r\n6.\r\n\t\r\n\r\nUnder Settings, in the Scripting section, under Active Scripting, click Prompt or Disable, and then click OK.\r\n\r\n7.\r\n\t\r\n\r\nClick OK two times to return to Internet Explorer.\r\n\r\nNote Disabling Active Scripting in the Internet and Local intranet security zones may cause some Web sites to work incorrectly. If you have difficulty using a Web site after you change this setting, and you are sure the site is safe to use, you can add that site to your list of trusted sites. This will allow the site to work correctly.\r\n\r\nImpact of Workaround: There are side effects to prompting before running Active Scripting. Many Web sites that are on the Internet or on an intranet use Active Scripting to provide additional functionality. For example, an online e-commerce site or banking site may use Active Scripting to provide menus, ordering forms, or even account statements. Prompting before running Active Scripting is a global setting that affects all Internet and intranet sites. You will be prompted frequently when you enable this workaround. For each prompt, if you feel you trust the site that you are visiting, click Yes to run Active Scripting. If you do not want to be prompted for all these sites, use the steps outlined in "Add sites that you trust to Internet Explorer's Trusted sites zone\u201d.\r\n\r\nAdd sites that you trust to Internet Explorer's Trusted sites zone.\r\n\r\nAfter you set Internet Explorer to require a prompt before it runs ActiveX controls and Active Scripting in the Internet zone and in the Local intranet zone, you can add sites that you trust to Internet Explorer's Trusted sites zone. This will allow you to continue to use trusted Web sites exactly as you do today, while helping to protect you from this attack on untrusted sites. We recommend that you add only sites that you trust to the Trusted sites zone.\r\n\r\nTo do this, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nIn Internet Explorer, click Tools, click Internet Options, and then click the Security tab.\r\n\r\n2.\r\n\t\r\n\r\nIn the Select a Web content zone to specify its current security settings box, click Trusted Sites, and then click Sites.\r\n\r\n3.\r\n\t\r\n\r\nIf you want to add sites that do not require an encrypted channel, click to clear the Require server verification (https:) for all sites in this zone check box.\r\n\r\n4.\r\n\t\r\n\r\nIn the Add this Web site to the zone box, type the URL of a site that you trust, and then click Add.\r\n\r\n5.\r\n\t\r\n\r\nRepeat these steps for each site that you want to add to the zone.\r\n\r\n6.\r\n\t\r\n\r\nClick OK two times to accept the changes and return to Internet Explorer.\r\n\r\nNote Add any sites that you trust not to take malicious action on your computer. Two in particular that you may want to add are "*.windowsupdate.microsoft.com" and \u201c*.update.microsoft.com\u201d (without the quotation marks). These are the sites that will host the update, and it requires an ActiveX Control to install the update.\r\n\u2022\t\r\n\r\nSet Internet and Local intranet security zone settings to \u201cHigh\u201d to prompt before running ActiveX Controls and Active Scripting in these zones\r\n\r\nYou can help protect against this vulnerability by changing your settings for the Internet security zone to prompt before running ActiveX controls and Active Scripting. You can do this by setting your browser security to High.\r\n\r\nTo raise the browsing security level in Microsoft Internet Explorer, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nOn the Internet Explorer Tools menu, click Internet Options.\r\n\r\n2.\r\n\t\r\n\r\nIn the Internet Options dialog box, click the Security tab, and then click the Internet icon.\r\n\r\n3.\r\n\t\r\n\r\nUnder Security level for this zone, move the slider to High. This sets the security level for all Web sites you visit to High.\r\n\r\nNote If no slider is visible, click Default Level, and then move the slider to High.\r\n\r\nNote Setting the level to High may cause some Web sites to work incorrectly. If you have difficulty using a Web site after you change this setting, and you are sure the site is safe to use, you can add that site to your list of trusted sites. This will allow the site to work correctly even with the security setting set to High.\r\n\r\nImpact of Workaround: There are side effects to prompting before running ActiveX Controls and Active Scripting. Many Web sites that are on the Internet or on an intranet use ActiveX or Active Scripting to provide additional functionality. For example, an online e-commerce site or banking site may use ActiveX Controls to provide menus, ordering forms, or even account statements. Prompting before running ActiveX Controls or Active Scripting is a global setting that affects all Internet and intranet sites. You will be prompted frequently when you enable this workaround. For each prompt, if you feel you trust the site that you are visiting, click Yes to run ActiveX Controls or Active Scripting. If you do not want to be prompted for all these sites, use the steps outlined in "Add sites that you trust to Internet Explorer's Trusted sites zone\u201d\r\n\r\nAdd sites that you trust to Internet Explorer's Trusted sites zone.\r\n\r\nAfter you set Internet Explorer to require a prompt before it runs ActiveX controls and Active Scripting in the Internet zone and in the Local intranet zone, you can add sites that you trust to Internet Explorer's Trusted sites zone. This will allow you to continue to use trusted Web sites exactly as you do today, while helping to protect you from this attack on untrusted sites. We recommend that you add only sites that you trust to the Trusted sites zone.\r\n\r\nTo do this, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nIn Internet Explorer, click Tools, click Internet Options, and then click the Security tab.\r\n\r\n2.\r\n\t\r\n\r\nIn the Select a Web content zone to specify its current security settings box, click Trusted Sites, and then click Sites.\r\n\r\n3.\r\n\t\r\n\r\nIf you want to add sites that do not require an encrypted channel, click to clear the Require server verification (https:) for all sites in this zone check box.\r\n\r\n4.\r\n\t\r\n\r\nIn the Add this Web site to the zone box, type the URL of a site that you trust, and then click Add.\r\n\r\n5.\r\n\t\r\n\r\nRepeat these steps for each site that you want to add to the zone.\r\n\r\n6.\r\n\t\r\n\r\nClick OK two times to accept the changes and return to Internet Explorer.\r\n\r\nNote Add any sites that you trust not to take malicious action on your computer. Two in particular that you may want to add are "*.windowsupdate.microsoft.com" and \u201c*.update.microsoft.com\u201d (without the quotation marks). These are the sites that will host the update, and it requires an ActiveX Control to install the update.\r\nTop of sectionTop of section\r\n\t\r\nFAQ for DHTML Method Call Memory Corruption Vulnerability - CVE-2006-1359:\r\n\r\nWhat is the scope of the vulnerability?\r\nThis is a remote code execution vulnerability. An attacker who successfully exploited this vulnerability could remotely take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\r\n\r\nWhat causes the vulnerability?\r\nWhen Internet Explorer displays a Web page that contains certain unexpected method calls to HTML objects, system memory may be corrupted in such a way that an attacker could execute arbitrary code.\r\n\r\nSpecifically, the public postings discuss a potential behavior in Internet Explorer in the way that HTML objects may handle an unexpected createTextRange() method call to an HTML object. A Web page that is specially crafted to exploit this vulnerability will cause Internet Explorer to fail. As a result of this, system memory may be corrupted in such a way that an attacker could execute arbitrary code.\r\n\r\nWhat is the createTextRange() method?\r\nThe createTextRange() method is a dynamic HTML (DHTML) method that is exposed by the DHTML Object Model. For more information about DHTML methods, visit the MSDN Library Web site.\r\n\r\nWhat might an attacker use the vulnerability to do?\r\nAn attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.\r\n\r\nHow could an attacker exploit the vulnerability?\r\nAn attacker could host a malicious Web site that is designed to exploit this vulnerability through Internet Explorer and then persuade a user to view the Web site. This can also include Web sites that accept user-provided content or advertisements, Web sites that host user-provided content or advertisements, and compromised Web sites. These Web sites could contain malicious content that could exploit this vulnerability. In all cases, however, an attacker would have no way to force users to visit these Web sites. Instead, an attacker would have to persuade users to visit the Web site, typically by getting them to click a link in an e-mail message or in an Instant Messenger request that takes users to the attacker's Web site. It could also be possible to display specially crafted Web content by using banner advertisements or by using other methods to deliver Web content to affected systems.\r\n\r\nCould this vulnerability be exploited through e-mail?\r\nThis vulnerability could not be exploited automatically through e-mail or while viewing e-mail messages in the preview pane while using Outlook or Outlook Express. Customers would have to click on a link that would take them to a malicious Web site, or open an attachment that could exploit the vulnerability.\r\n\r\nWhat systems are primarily at risk from the vulnerability?\r\nThis vulnerability requires a user to be logged on and visiting a Web site for any malicious action to occur. Therefore, any systems where Internet Explorer is used frequently, such as workstations or terminal servers, are at the most risk from this vulnerability.\r\n\r\nAre Windows 98, Windows 98 Second Edition or Windows Millennium Edition critically affected by this vulnerability?\r\nYes. Windows 98, Windows 98 Second Edition, and Windows Millennium Edition are critically affected by this vulnerability. The security updates are available from the Windows Update Web site. For more information about severity ratings, visit the following Web site.\r\n\r\nWhat does the update do?\r\nThe update removes the vulnerability by changing the way that Internet Explorer initializes memory before using it.\r\n\r\nWhen this security bulletin was issued, had this vulnerability been publicly disclosed?\r\nYes. This vulnerability has been publicly disclosed. It has been assigned Common Vulnerability and Exposure number CVE-2006-1359.\r\n\r\nWhen this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?\r\nYes. When the security bulletin was released, Microsoft had received information that this vulnerability was being exploited.\r\n\r\nDoes applying this security update help protect customers from the code that has been published publicly that attempts to exploit this vulnerability?\r\nYes. This security update addresses the vulnerability that is currently being exploited. The vulnerability that has been addressed has been assigned the Common Vulnerability and Exposure number CVE-2006-1359.\r\nTop of sectionTop of section\r\nTop of sectionTop of section\r\n\t\r\nMultiple Event Handler Memory Corruption Vulnerability - CVE-2006-1245:\r\n\r\nA remote code execution vulnerability exists in the way Internet Explorer handles multiple event handlers in an HTML element. An attacker could exploit the vulnerability by constructing a malicious Web page that could potentially allow remote code execution if a user visited the malicious Web site. An attacker who successfully exploited this vulnerability could take complete control of an affected system.\r\n\t\r\nMitigating Factors for Multiple Event Handler Memory Corruption Vulnerability - CVE-2006-1245:\r\n\u2022\t\r\n\r\nIn a Web-based attack scenario, an attacker would have to host a Web site that contains a Web page that is used to exploit this vulnerability. An attacker would have no way to force users to visit a malicious Web site. Instead, an attacker would have to persuade them to visit the Web site, typically by getting them to click a link that takes them to the attacker's Web site.\r\n\u2022\t\r\n\r\nAn attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.\r\n\u2022\t\r\n\r\nBy default, Internet Explorer on Windows Server 2003 runs in a restricted mode that is known as Enhanced Security Configuration. This mode mitigates this vulnerability in the e-mail vector because reading e-mail messages in plain text is the default configuration for Outlook Express. See the FAQ section of this security update for more information about Internet Explorer Enhanced Security Configuration.\r\nTop of sectionTop of section\r\n\t\r\nWorkarounds for Multiple Event Handler Corruption Vulnerability - CVE-2006-1245:\r\n\r\nNo workarounds have been identified for this vulnerability.\r\nTop of sectionTop of section\r\n\t\r\nFAQ for Multiple Event Handler Memory Corruption Vulnerability - CVE-2006-1245:\r\n\r\nWhat is the scope of the vulnerability?\r\nThis is a remote code execution vulnerability. An attacker who successfully exploited this vulnerability could remotely take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\r\n\r\nWhat causes the vulnerability?\r\nWhen Internet Explorer handles multiple event handlers in an HTML element, system memory may be corrupted in such a way that an attacker could execute arbitrary code.\r\n\r\nFor example, when Internet Explorer displays a Web page that contains multiple onLoad events in an HTML element, system memory may be corrupted in such a way that an attacker could execute arbitrary code.\r\n\r\nWhat might an attacker use the vulnerability to do?\r\nAn attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.\r\n\r\nHow could an attacker exploit the vulnerability?\r\nAn attacker could host a malicious Web site that is designed to exploit this vulnerability through Internet Explorer and then persuade a user to view the Web site. This can also include Web sites that accept user-provided content or advertisements, Web sites that host user-provided content or advertisements, and compromised Web sites. These Web sites could contain malicious content that could exploit this vulnerability. In all cases, however, an attacker would have no way to force users to visit these Web sites. Instead, an attacker would have to persuade users to visit the Web site, typically by getting them to click a link in an e-mail message or in an Instant Messenger request that takes users to the attacker's Web site. It could also be possible to display specially crafted Web content by using banner advertisements or by using other methods to deliver Web content to affected systems.\r\n\r\nWhat systems are primarily at risk from the vulnerability?\r\nThis vulnerability requires that a user is logged on and reading HTML e-mail messages or that a user is logged on and visits a Web site for any malicious action to occur. Therefore, any systems where HTML e-mail messages are read or where Internet Explorer is used frequently, such as workstations or terminal servers, are at the most risk from this vulnerability.\r\n\r\nNote The Restricted sites zone helps reduce attacks that could try to exploit this vulnerability by preventing Active Scripting from being used when reading HTML e-mail messages. However, if a user clicks a link in an e-mail message, they could still be vulnerable to this issue through the Web-based attack scenario. It may be possible to exploit this vulnerability without making use of Active Scripting. However, our investigation has shown that this is harder to exploit without the use of Active Scripting.\r\n\r\nAre Windows 98, Windows 98 Second Edition or Windows Millennium Edition critically affected by this vulnerability?\r\nYes. Windows 98, Windows 98 Second Edition, and Windows Millennium Edition are critically affected by this vulnerability. The security updates are available from the Windows Update Web site. For more information about severity ratings, visit the following Web site.\r\n\r\nWhat does the update do?\r\nThe update removes the vulnerability by modifying the way that Internet Explorer handles multiple event handlers so that Internet Explorer does not exit in an exploitable way.\r\n\r\nWhen this security bulletin was issued, had this vulnerability been publicly disclosed?\r\nYes. This vulnerability has been publicly disclosed. It has been assigned Common Vulnerability and Exposure number CVE-2006-1245.\r\n\r\nWhen this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?\r\nNo. Microsoft had seen examples of proof of concept code published publicly but had not received any information to indicate that this vulnerability had been publicly used to attack customers when this security bulletin was originally issued.\r\n\r\nDoes applying this security update help protect customers from the code that has been published publicly that attempts to exploit this vulnerability?\r\nYes. This security update addresses the vulnerability that potentially could be exploited by using the published proof of concept code. The vulnerability that has been addressed has been assigned the Common Vulnerability and Exposure number CVE-2006-1245.\r\nTop of sectionTop of section\r\nTop of sectionTop of section\r\n\t\r\nHTA Execution Vulnerability - CVE-2006-1388:\r\n\r\nA remote code execution vulnerability exists in Internet Explorer. An HTML Application (HTA) can be initiated in a way that bypasses the security control within Internet Explorer. This allows an HTA to execute without Internet Explorer displaying the normal security dialog box. An attacker could exploit the vulnerability by constructing a malicious Web page that could potentially allow remote code execution if a user visited the malicious Web site. An attacker who successfully exploited this vulnerability could take complete control of an affected system.\r\n\t\r\nMitigating Factors for HTA Execution Vulnerability - CVE-2006-1388:\r\n\u2022\t\r\n\r\nIn a Web-based attack scenario, an attacker would have to host a Web site that contains a Web page that is used to exploit this vulnerability. An attacker would have no way to force users to visit a malicious Web site. Instead, an attacker would have to persuade them to visit the Web site, typically by getting them to click a link that takes them to the attacker's Web site.\r\n\u2022\t\r\n\r\nAn attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.\r\n\u2022\t\r\n\r\nThe Restricted sites zone helps reduce attacks that could try to exploit this vulnerability by preventing Active Scripting from being used when reading HTML e-mail messages. However, if a user clicks a link in an e-mail message, they could still be vulnerable to this issue through the Web-based attack scenario.\r\n\r\nBy default, Outlook Express 6, Outlook 2002, and Outlook 2003 open HTML e-mail messages in the Restricted sites zone. Additionally Outlook 2000 opens HTML e-mail messages in the Restricted sites zone if the Outlook E-mail Security Update has been installed. Outlook Express 5.5 Service Pack 2 opens HTML e-mail messages in the Restricted sites zone if Microsoft Security Bulletin MS04-018 has been installed.\r\n\u2022\t\r\n\r\nBy default, Internet Explorer on Windows Server 2003 runs in a restricted mode that is known as Enhanced Security Configuration. This mode mitigates this vulnerability. See the FAQ section of this security update for more information about Internet Explorer Enhanced Security Configuration.\r\nTop of sectionTop of section\r\n\t\r\nWorkarounds for HTA Execution Vulnerability - CVE-2006-1388:\r\n\r\nMicrosoft has tested the following workarounds. While these workarounds will not correct the underlying vulnerability, they help block known attack vectors. When a workaround reduces functionality, it is identified in the following section.\r\n\u2022\t\r\n\r\nUn-register the Mshta.exe file\r\n\r\nTo un-register the Mshta.exe file, use the following command:\r\n\r\nClick Start, click Run, type ""%windir%\system32\mshta.exe /unregister" (without the quotation marks), and then click OK.\r\n\r\nImpact of Workaround: Users will be prompted to select a software to open HTML Applications (.HTA files) with.\r\n\r\nTo undo this change, re-register Mshta.exe by following the above steps. Replace the text in Step 1 with ""%windir%\system32\mshta.exe /register" (without the quotation marks).\r\n\u2022\t\r\n\r\nModify the Access Control List on the Mshta.exe file\r\n\r\nYou can help protect against this vulnerability by modifying the Access Control List on the Mshta.exe file. To do this, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nClick Start, click Run, type "cmd" (without the quotation marks), and then click OK.\r\n\r\n2.\r\n\t\r\n\r\nType the following command at a command prompt. Make a note of the current ACLs that are on the file (including inheritance settings) for future reference to undo this modification:\r\n\r\ncacls %windir%\system32\mshta.exe\r\n\r\n3.\r\n\t\r\n\r\nType the following command at a command prompt to deny the \u2018everyone\u2019 group access to this file:\r\n\r\ncacls %windir%\system32\mshta.exe /d everyone\r\n\r\nImpact of Workaround: HTML Applications (.HTA files) will stop working.\r\n\u2022\t\r\n\r\nConfigure Internet Explorer to prompt before running Active Scripting or disable Active Scripting in the Internet and Local intranet security zone\r\n\r\nYou can help protect against this vulnerability by changing your settings to prompt before running Active Scripting or to disable Active Scripting in the Internet and Local intranet security zone. To do this, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nIn Internet Explorer, click Internet Options on the Tools menu.\r\n\r\n2.\r\n\t\r\n\r\nClick the Security tab.\r\n\r\n3.\r\n\t\r\n\r\nClick Internet, and then click Custom Level.\r\n\r\n4.\r\n\t\r\n\r\nUnder Settings, in the Scripting section, under Active Scripting, click Prompt or Disable, and then click OK.\r\n\r\n5.\r\n\t\r\n\r\nClick Local intranet, and then click Custom Level.\r\n\r\n6.\r\n\t\r\n\r\nUnder Settings, in the Scripting section, under Active Scripting, click Prompt or Disable, and then click OK.\r\n\r\n7.\r\n\t\r\n\r\nClick OK two times to return to Internet Explorer.\r\n\r\nNote Disabling Active Scripting in the Internet and Local intranet security zones may cause some Web sites to work incorrectly. If you have difficulty using a Web site after you change this setting, and you are sure the site is safe to use, you can add that site to your list of trusted sites. This will allow the site to work correctly.\r\n\r\nImpact of Workaround: There are side effects to prompting before running Active Scripting. Many Web sites that are on the Internet or on an intranet use Active Scripting to provide additional functionality. For example, an online e-commerce site or banking site may use Active Scripting to provide menus, ordering forms, or even account statements. Prompting before running Active Scripting is a global setting that affects all Internet and intranet sites. You will be prompted frequently when you enable this workaround. For each prompt, if you feel you trust the site that you are visiting, click Yes to run Active Scripting. If you do not want to be prompted for all these sites, use the steps outlined in "Add sites that you trust to Internet Explorer's Trusted sites zone\u201d.\r\n\r\nAdd sites that you trust to Internet Explorer's Trusted sites zone.\r\n\r\nAfter you set Internet Explorer to require a prompt before it runs ActiveX controls and Active Scripting in the Internet zone and in the Local intranet zone, you can add sites that you trust to Internet Explorer's Trusted sites zone. This will allow you to continue to use trusted Web sites exactly as you do today, while helping to protect you from this attack on untrusted sites. We recommend that you add only sites that you trust to the Trusted sites zone.\r\n\r\nTo do this, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nIn Internet Explorer, click Tools, click Internet Options, and then click the Security tab.\r\n\r\n2.\r\n\t\r\n\r\nIn the Select a Web content zone to specify its current security settings box, click Trusted Sites, and then click Sites.\r\n\r\n3.\r\n\t\r\n\r\nIf you want to add sites that do not require an encrypted channel, click to clear the Require server verification (https:) for all sites in this zone check box.\r\n\r\n4.\r\n\t\r\n\r\nIn the Add this Web site to the zone box, type the URL of a site that you trust, and then click Add.\r\n\r\n5.\r\n\t\r\n\r\nRepeat these steps for each site that you want to add to the zone.\r\n\r\n6.\r\n\t\r\n\r\nClick OK two times to accept the changes and return to Internet Explorer.\r\n\r\nNote Add any sites that you trust not to take malicious action on your computer. Two in particular that you may want to add are "*.windowsupdate.microsoft.com" and \u201c*.update.microsoft.com\u201d (without the quotation marks). These are the sites that will host the update, and it requires an ActiveX Control to install the update.\r\n\u2022\t\r\n\r\nSet Internet and Local intranet security zone settings to \u201cHigh\u201d to prompt before running ActiveX Controls and Active Scripting in these zones\r\n\r\nYou can help protect against this vulnerability by changing your settings for the Internet security zone to prompt before running ActiveX controls. You can do this by setting your browser security to High.\r\n\r\nTo raise the browsing security level in Microsoft Internet Explorer, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nOn the Internet Explorer Tools menu, click Internet Options.\r\n\r\n2.\r\n\t\r\n\r\nIn the Internet Options dialog box, click the Security tab, and then click the Internet icon.\r\n\r\n3.\r\n\t\r\n\r\nUnder Security level for this zone, move the slider to High. This sets the security level for all Web sites you visit to High.\r\n\r\nNote If no slider is visible, click Default Level, and then move the slider to High.\r\n\r\nNote Setting the level to High may cause some Web sites to work incorrectly. If you have difficulty using a Web site after you change this setting, and you are sure the site is safe to use, you can add that site to your list of trusted sites. This will allow the site to work correctly even with the security setting set to High.\r\n\r\nImpact of Workaround: There are side effects to prompting before running ActiveX Controls and Active Scripting. Many Web sites that are on the Internet or on an intranet use ActiveX or Active Scripting to provide additional functionality. For example, an online e-commerce site or banking site may use ActiveX Controls to provide menus, ordering forms, or even account statements. Prompting before running ActiveX Controls or Active Scripting is a global setting that affects all Internet and intranet sites. You will be prompted frequently when you enable this workaround. For each prompt, if you feel you trust the site that you are visiting, click Yes to run ActiveX Controls or Active Scripting. If you do not want to be prompted for all these sites, use the steps outlined in "Add sites that you trust to Internet Explorer's Trusted sites zone\u201d\r\n\r\nAdd sites that you trust to Internet Explorer's Trusted sites zone.\r\n\r\nAfter you set Internet Explorer to require a prompt before it runs ActiveX controls and Active Scripting in the Internet zone and in the Local intranet zone, you can add sites that you trust to Internet Explorer's Trusted sites zone. This will allow you to continue to use trusted Web sites exactly as you do today, while helping to protect you from this attack on untrusted sites. We recommend that you add only sites that you trust to the Trusted sites zone.\r\n\r\nTo do this, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nIn Internet Explorer, click Tools, click Internet Options, and then click the Security tab.\r\n\r\n2.\r\n\t\r\n\r\nIn the Select a Web content zone to specify its current security settings box, click Trusted Sites, and then click Sites.\r\n\r\n3.\r\n\t\r\n\r\nIf you want to add sites that do not require an encrypted channel, click to clear the Require server verification (https:) for all sites in this zone check box.\r\n\r\n4.\r\n\t\r\n\r\nIn the Add this Web site to the zone box, type the URL of a site that you trust, and then click Add.\r\n\r\n5.\r\n\t\r\n\r\nRepeat these steps for each site that you want to add to the zone.\r\n\r\n6.\r\n\t\r\n\r\nClick OK two times to accept the changes and return to Internet Explorer.\r\n\r\nNote Add any sites that you trust not to take malicious action on your computer. Two in particular that you may want to add are "*.windowsupdate.microsoft.com" and \u201c*.update.microsoft.com\u201d (without the quotation marks). These are the sites that will host the update, and it requires an ActiveX Control to install the update.\r\nTop of sectionTop of section\r\n\t\r\nFAQ for HTA Execution Vulnerability - CVE-2006-1388:\r\n\r\nWhat is the scope of the vulnerability?\r\nThis is a remote code execution vulnerability. An attacker who successfully exploited this vulnerability could remotely take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\r\n\r\nWhat causes the vulnerability?\r\nAn HTML Application (HTA) can be initiated in a way that bypasses the security control within Internet Explorer. This allows an HTA to execute without Internet Explorer displaying the normal security dialog box.\r\n\r\nWhat might an attacker use the vulnerability to do?\r\nAn attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.\r\n\r\nHow could an attacker exploit the vulnerability?\r\nAn attacker could host a malicious Web site that is designed to exploit this vulnerability through Internet Explorer and then persuade a user to view the Web site. This can also include Web sites that accept user-provided content or advertisements, Web sites that host user-provided content or advertisements, and compromised Web sites. These Web sites could contain malicious content that could exploit this vulnerability. In all cases, however, an attacker would have no way to force users to visit these Web sites. Instead, an attacker would have to persuade users to visit the Web site, typically by getting them to click a link in an e-mail message or in an Instant Messenger request that takes users to the attacker's Web site. It could also be possible to display specially crafted Web content by using banner advertisements or by using other methods to deliver Web content to affected systems.\r\n\r\nWhat systems are primarily at risk from the vulnerability?\r\nThis vulnerability requires a user to be logged on and visiting a Web site for any malicious action to occur. Therefore, any systems where Internet Explorer is used frequently, such as workstations or terminal servers, are at the most risk from this vulnerability.\r\n\r\nAre Windows 98, Windows 98 Second Edition or Windows Millennium Edition critically affected by this vulnerability?\r\nYes. Windows 98, Windows 98 Second Edition, and Windows Millennium Edition are critically affected by this vulnerability. The security updates are available from the Windows Update Web site. For more information about severity ratings, visit the following Web site.\r\n\r\nWhat does the update do?\r\nThe update removes the vulnerability by changing Internet Explorer so that the appropriate security dialog is displayed.\r\n\r\nWhen this security bulletin was issued, had this vulnerability been publicly disclosed?\r\nNo. Microsoft received information about this vulnerability through responsible disclosure.\r\n\r\nWhen this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?\r\nNo. Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers and had not seen any examples of proof of concept code published when this security bulletin was originally issued.\r\nTop of sectionTop of section\r\nTop of sectionTop of section\r\n\t\r\nHTML Parsing Vulnerability - CVE-2006-1185:\r\n\r\nA remote code execution vulnerability exists in the way Internet Explorer handles specially crafted and not valid HTML. An attacker could exploit the vulnerability by constructing a malicious Web page that could potentially allow remote code execution if a user visited the malicious Web site. An attacker who successfully exploited this vulnerability could take complete control of an affected system.\r\n\t\r\nMitigating Factors for HTML Parsing Vulnerability - CVE-2006-1185:\r\n\u2022\t\r\n\r\nIn a Web-based attack scenario, an attacker would have to host a Web site that contains a Web page that is used to exploit this vulnerability. An attacker would have no way to force users to visit a malicious Web site. Instead, an attacker would have to persuade them to visit the Web site, typically by getting them to click a link that takes them to the attacker's Web site.\r\n\u2022\t\r\n\r\nAn attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.\r\n\u2022\t\r\n\r\nBy default, Internet Explorer on Windows Server 2003 runs in a restricted mode that is known as Enhanced Security Configuration. This mode mitigates this vulnerability in the e-mail vector because reading e-mail messages in plain text is the default configuration for Outlook Express. See the FAQ section of this security update for more information about Internet Explorer Enhanced Security Configuration.\r\n\u2022\t\r\n\r\nThis vulnerability does not affect Internet Explorer 6 Service Pack 1 on Windows XP Service Pack 1, Windows 2000 Service Pack 4, Windows 98, Windows 98 Second Edition (SE), or Windows Millennium Edition (ME).\r\nTop of sectionTop of section\r\n\t\r\nWorkarounds for HTML Parsing Vulnerability - CVE-2006-1185:\r\n\r\nNo workarounds have been identified for this vulnerability.\r\nTop of sectionTop of section\r\n\t\r\nFAQ for HTML Parsing Vulnerability - CVE-2006-1185:\r\n\r\nWhat is the scope of the vulnerability?\r\nThis is a remote code execution vulnerability. An attacker who successfully exploited this vulnerability could remotely take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\r\n\r\nWhat causes the vulnerability?\r\nWhen Internet Explorer handles specially crafted and not valid HTML it may corrupt system memory in such a way that an attacker could execute arbitrary code.\r\n\r\nWhat might an attacker use the vulnerability to do?\r\nAn attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.\r\n\r\nHow could an attacker exploit the vulnerability?\r\nAn attacker could host a malicious Web site that is designed to exploit this vulnerability through Internet Explorer and then persuade a user to view the Web site. This can also include Web sites that accept user-provided content or advertisements, Web sites that host user-provided content or advertisements, and compromised Web sites. These Web sites could contain malicious content that could exploit this vulnerability. In all cases, however, an attacker would have no way to force users to visit these Web sites. Instead, an attacker would have to persuade users to visit the Web site, typically by getting them to click a link in an e-mail message or in an Instant Messenger request that takes users to the attacker's Web site. It could also be possible to display specially crafted Web content by using banner advertisements or by using other methods to deliver Web content to affected systems.\r\n\r\nWhat systems are primarily at risk from the vulnerability?\r\nThis vulnerability requires that a user is logged on and reading HTML e-mail messages or that a user is logged on and visits a Web site for any malicious action to occur. Therefore, any systems where HTML e-mail messages are read or where Internet Explorer is used frequently, such as workstations or terminal servers, are at the most risk from this vulnerability.\r\n\r\nWhat does the update do?\r\nThe update removes the vulnerability by modifying the way that Internet Explorer handles the reported specially crafted and not valid HTML.\r\n\r\nWhen this security bulletin was issued, had this vulnerability been publicly disclosed?\r\nNo. Microsoft received information about this vulnerability through responsible disclosure.\r\n\r\nWhen this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?\r\nNo. Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers and had not seen any examples of proof of concept code published when this security bulletin was originally issued.\r\nTop of sectionTop of section\r\nTop of sectionTop of section\r\n\t\r\nCOM Object Instantiation Memory Corruption Vulnerability - CVE-2006-1186:\r\n\r\nA remote code execution vulnerability exists in the way Internet Explorer instantiates COM objects that are not intended to be instantiated in Internet Explorer. An attacker could exploit the vulnerability by constructing a malicious Web page that could potentially allow remote code execution if a user visited the malicious Web site. An attacker who successfully exploited this vulnerability could take complete control of an affected system.\r\n\t\r\nMitigating Factors for COM Object Instantiation Memory Corruption Vulnerability - CVE-2006-1186:\r\n\u2022\t\r\n\r\nCustomers who have installed the security update included with Microsoft Security Bulletin MS05-052 or a later security bulletin for Internet Explorer are not at risk from attacks originating from the Internet zone.\r\n\u2022\t\r\n\r\nIn a Web-based attack scenario, an attacker would have to host a Web site that contains a Web page that is used to exploit this vulnerability. An attacker would have no way to force users to visit a malicious Web site. Instead, an attacker would have to persuade them to visit the Web site, typically by getting them to click a link that takes them to the attacker's Web site.\r\n\u2022\t\r\n\r\nAn attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.\r\n\u2022\t\r\n\r\nThe Restricted sites zone helps reduce attacks that could try to exploit this vulnerability by preventing ActiveX Controls from being used when reading HTML e-mail messages. However, if a user clicks a link in an e-mail message, they could still be vulnerable to this issue through the Web-based attack scenario.\r\n\r\nBy default, Outlook Express 6, Outlook 2002, and Outlook 2003 open HTML e-mail messages in the Restricted sites zone. Additionally Outlook 2000 opens HTML e-mail messages in the Restricted sites zone if the Outlook E-mail Security Update has been installed. Outlook Express 5.5 Service Pack 2 opens HTML e-mail messages in the Restricted sites zone if Microsoft Security Bulletin MS04-018 has been installed.\r\n\u2022\t\r\n\r\nBy default, Internet Explorer on Windows Server 2003 runs in a restricted mode that is known as Enhanced Security Configuration. This mode mitigates this vulnerability. See the FAQ section for this security update for more information about Internet Explorer Enhanced Security Configuration.\r\nTop of sectionTop of section\r\n\t\r\nWorkarounds for COM Object Instantiation Memory Corruption Vulnerability - CVE-2006-1186:\r\n\r\nMicrosoft has tested the following workarounds. While these workarounds will not correct the underlying vulnerability, they help block known attack vectors. When a workaround reduces functionality, it is identified in the following section.\r\n\u2022\t\r\n\r\nConfigure Internet Explorer to prompt before running ActiveX Controls or disable ActiveX Controls in the Internet and Local intranet security zone\r\n\r\nYou can help protect against this vulnerability by changing your Internet Explorer settings to prompt before running ActiveX controls. To do this, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nIn Internet Explorer, click Internet Options on the Tools menu.\r\n\r\n2.\r\n\t\r\n\r\nClick the Security tab.\r\n\r\n3.\r\n\t\r\n\r\nClick Internet, and then click Custom Level.\r\n\r\n4.\r\n\t\r\n\r\nUnder Settings, in the ActiveX controls and plug-ins section, under Run ActiveX controls and plug-ins, click Prompt or Disable, and then click OK.\r\n\r\n5.\r\n\t\r\n\r\nClick Local intranet, and then click Custom Level.\r\n\r\n6.\r\n\t\r\n\r\nUnder Settings, in the ActiveX controls and plug-ins section, under Run ActiveX controls and plug-ins, click Prompt or Disable, and then click OK.\r\n\r\n7.\r\n\t\r\n\r\nClick OK two times to return to Internet Explorer.\r\n\r\nImpact of Workaround: There are side effects to prompting before running ActiveX controls. Many Web sites that are on the Internet or on an intranet use ActiveX to provide additional functionality. For example, an online e-commerce site or banking site may use ActiveX controls to provide menus, ordering forms, or even account statements. Prompting before running ActiveX controls is a global setting that affects all Internet and intranet sites. You will be prompted frequently when you enable this workaround. For each prompt, if you feel you trust the site that you are visiting, click Yes to run ActiveX controls. If you do not want to be prompted for all these sites, use the steps outlined in "Add sites that you trust to Internet Explorer's Trusted sites zone\u201d.\r\n\r\nAdd sites that you trust to Internet Explorer's Trusted sites zone.\r\n\r\nAfter you set Internet Explorer to require a prompt before it runs ActiveX controls and Active Scripting in the Internet zone and in the Local intranet zone, you can add sites that you trust to Internet Explorer's Trusted sites zone. This will allow you to continue to use trusted Web sites exactly as you do today, while helping to protect you from this attack on untrusted sites. We recommend that you add only sites that you trust to the Trusted sites zone.\r\n\r\nTo do this, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nIn Internet Explorer, click Tools, click Internet Options, and then click the Security tab.\r\n\r\n2.\r\n\t\r\n\r\nIn the Select a Web content zone to specify its current security settings box, click Trusted Sites, and then click Sites.\r\n\r\n3.\r\n\t\r\n\r\nIf you want to add sites that do not require an encrypted channel, click to clear the Require server verification (https:) for all sites in this zone check box.\r\n\r\n4.\r\n\t\r\n\r\nIn the Add this Web site to the zone box, type the URL of a site that you trust, and then click Add.\r\n\r\n5.\r\n\t\r\n\r\nRepeat these steps for each site that you want to add to the zone.\r\n\r\n6.\r\n\t\r\n\r\nClick OK two times to accept the changes and return to Internet Explorer.\r\n\r\nNote Add any sites that you trust not to take malicious action on your computer. Two in particular that you may want to add are "*.windowsupdate.microsoft.com" and \u201c*.update.microsoft.com\u201d (without the quotation marks). These are the sites that will host the update, and it requires an ActiveX Control to install the update.\r\n\u2022\t\r\n\r\nSet Internet and Local intranet security zone settings to \u201cHigh\u201d to prompt before running ActiveX Controls and Active Scripting in these zones\r\n\r\nYou can help protect against this vulnerability by changing your settings for the Internet security zone to prompt before running ActiveX controls. You can do this by setting your browser security to High.\r\n\r\nTo raise the browsing security level in Microsoft Internet Explorer, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nOn the Internet Explorer Tools menu, click Internet Options.\r\n\r\n2.\r\n\t\r\n\r\nIn the Internet Options dialog box, click the Security tab, and then click the Internet icon.\r\n\r\n3.\r\n\t\r\n\r\nUnder Security level for this zone, move the slider to High. This sets the security level for all Web sites you visit to High.\r\n\r\nNote If no slider is visible, click Default Level, and then move the slider to High.\r\n\r\nNote Setting the level to High may cause some Web sites to work incorrectly. If you have difficulty using a Web site after you change this setting, and you are sure the site is safe to use, you can add that site to your list of trusted sites. This will allow the site to work correctly even with the security setting set to High.\r\n\r\nImpact of Workaround: There are side effects to prompting before running ActiveX controls. Many Web sites that are on the Internet or on an intranet use ActiveX to provide additional functionality. For example, an online e-commerce site or banking site may use ActiveX controls to provide menus, ordering forms, or even account statements. Prompting before running ActiveX controls is a global setting that affects all Internet and intranet sites. You will be prompted frequently when you enable this workaround. For each prompt, if you feel you trust the site that you are visiting, click Yes to run ActiveX controls. If you do not want to be prompted for all these sites, use the steps outlined in "Add sites that you trust to Internet Explorer's Trusted sites zone\u201d.\r\n\r\nAdd sites that you trust to Internet Explorer's Trusted sites zone.\r\n\r\nAfter you set Internet Explorer to require a prompt before it runs ActiveX controls and Active Scripting in the Internet zone and in the Local intranet zone, you can add sites that you trust to Internet Explorer's Trusted sites zone. This will allow you to continue to use trusted Web sites exactly as you do today, while helping to protect you from this attack on untrusted sites. We recommend that you add only sites that you trust to the Trusted sites zone.\r\n\r\nTo do this, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nIn Internet Explorer, click Tools, click Internet Options, and then click the Security tab.\r\n\r\n2.\r\n\t\r\n\r\nIn the Select a Web content zone to specify its current security settings box, click Trusted Sites, and then click Sites.\r\n\r\n3.\r\n\t\r\n\r\nIf you want to add sites that do not require an encrypted channel, click to clear the Require server verification (https:) for all sites in this zone check box.\r\n\r\n4.\r\n\t\r\n\r\nIn the Add this Web site to the zone box, type the URL of a site that you trust, and then click Add.\r\n\r\n5.\r\n\t\r\n\r\nRepeat these steps for each site that you want to add to the zone.\r\n\r\n6.\r\n\t\r\n\r\nClick OK two times to accept the changes and return to Internet Explorer.\r\n\r\nNote Add any sites that you trust not to take malicious action on your computer. Two in particular that you may want to add are "*.windowsupdate.microsoft.com" and \u201c*.update.microsoft.com\u201d (without the quotation marks). These are the sites that will host the update, and it requires an ActiveX Control to install the update.\r\n\r\nPrevent COM objects from running in Internet Explorer\r\n\r\nYou can disable attempts to instantiate a COM object in Internet Explorer by setting the kill bit for the control in the registry.\r\n\r\nWarning If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.\r\n\r\nFor detailed steps that you can use to prevent a control from running in Internet Explorer, see Microsoft Knowledge Base Article 240797. Follow these steps in this article to create a Compatibility Flags value in the registry to prevent a COM object from being instantiated in Internet Explorer.\r\n\r\nFor example, to set the kill bit for a CLSID in the Mdt2gddr.dll, file that is included in this security update, paste the following text in a text editor such as Notepad. Then, save the file by using the .reg file name extension.\r\n\r\n\r\n[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{1F7DD4F2-CAC3-11D0-A35B-00AA00BDCDFD}]\r\n"Compatibility Flags"=dword:00000400\r\n\r\nYou can apply this .reg file to individual systems by double-clicking it. You can also apply it across domains by using Group Policy. For more information about Group Policy, visit the following Microsoft Web sites:\r\n\r\nGroup Policy collection\r\n\r\nWhat is Group Policy Object Editor?\r\n\r\nCore Group Policy tools and settings\r\n\r\nNote You must restart Internet Explorer for your changes to take effect.\r\n\r\nImpact of Workaround: There is no impact as long as the COM object is not intended to be used in Internet Explorer.\r\nTop of sectionTop of section\r\n\t\r\nFAQ for COM Object Instantiation Memory Corruption Vulnerability - CVE-2006-1186:\r\n\r\nWhat is the scope of the vulnerability?\r\nThis is a remote code execution vulnerability. An attacker who successfully exploited this vulnerability could remotely take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\r\n\r\nWhat causes the vulnerability?\r\nWhen Internet Explorer tries to instantiate certain COM objects as ActiveX Controls, the COM objects may corrupt the system state in such a way that an attacker could execute arbitrary code.\r\n\r\nWhat might an attacker use the vulnerability to do?\r\nAn attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.\r\n\r\nHow could an attacker exploit the vulnerability?\r\nAn attacker could host a malicious Web site that is designed to exploit this vulnerability through Internet Explorer and then persuade a user to view the Web site. This can also include Web sites that accept user-provided content or advertisements, Web sites that host user-provided content or advertisements, and compromised Web sites. These Web sites could contain malicious content that could exploit this vulnerability. In all cases, however, an attacker would have no way to force users to visit these Web sites. Instead, an attacker would have to persuade users to visit the Web site, typically by getting them to click a link in an e-mail message or in an Instant Messenger request that takes users to the attacker's Web site. It could also be possible to display specially crafted Web content by using banner advertisements or by using other methods to deliver Web content to affected systems.\r\n\r\nWhat systems are primarily at risk from the vulnerability?\r\nThis vulnerability requires that a user is logged on and visits a Web site for any malicious action to occur. Therefore, any systems where Internet Explorer is used frequently, such as workstations or terminal servers, are at the most risk from this vulnerability.\r\n\r\nNote Customers who have installed the security update included with Microsoft Security Bulletin MS05-052 or a later security bulletin for Internet Explorer are not at risk from attacks originating from the Internet zone.\r\n\r\nAre Windows 98, Windows 98 Second Edition or Windows Millennium Edition critically affected by this vulnerability?\r\nYes. Windows 98, Windows 98 Second Edition, and Windows Millennium Edition are critically affected by this vulnerability. The security updates are available from the Windows Update Web site. For more information about severity ratings, visit the following Web site.\r\n\r\nWhat does the update do?\r\nBecause not all COM objects are designed to be accessed through Internet Explorer, this update sets the kill bit for a list of Class Identifiers (CLSIDs) for COM objects that have been found to exhibit similar behavior to the COM object Instantiation Memory Corruption Vulnerability that is addressed in Microsoft Security Bulletin MS05-054. To help protect customers, this update prevents these CLSIDs from being instantiated in Internet Explorer. For more information about kill bits, see Microsoft Knowledge Base Article 240797.\r\n\r\nThe Class Identifiers and corresponding COM objects are as follows.\r\n\r\nClass Identifier\r\n\t\r\n\r\nCOM object\r\n\r\n1F7DD4F2-CAC3-11D0-A35B-00AA00BDCDFD\r\n\t\r\n\r\nMdt2gddr.dll\r\n\r\n1F7DD4F3-CAC3-11D0-A35B-00AA00BDCDFD\r\n\t\r\n\r\nMdt2gddr.dll\r\n\r\nB0406342-B0C5-11d0-89A9-00A0C9054129\r\n\t\r\n\r\nMdt2dd.dll\r\n\r\nB0406343-B0C5-11d0-89A9-00A0C9054129\r\n\t\r\n\r\nMdt2dd.dll\r\n\r\nD24D4450-1F01-11D1-8E63-006097D2DF48\r\n\t\r\n\r\nMdt2dd.dll\r\n\r\n4CECCEB1-8359-11D0-A34E-00AA00BDCDFD\r\n\t\r\n\r\nMdt2gddo.dll\r\n\r\n4CECCEB2-8359-11D0-A34E-00AA00BDCDFD\r\n\t\r\n\r\nMdt2gddo.dll\r\n\r\nWhen this security bulletin was issued, had this vulnerability been publicly disclosed?\r\nNo. Microsoft received information about this vulnerability through responsible disclosure.\r\n\r\nWhen this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?\r\nNo. Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers and had not seen any examples of proof of concept code published when this security bulletin was originally issued.\r\n\r\nHow does this vulnerability relate to one of the vulnerabilities that are corrected by MS05-054?\r\nBoth security bulletins address COM object Instantiation Memory Corruption vulnerabilities. However, this update also addresses new CLSIDs that were not addressed as part of MS05-054. MS05-054 helps protect against exploitation of the CLSIDs that are discussed in that bulletin.\r\n\r\nNote Customers who have installed the security update included with Microsoft Security Bulletin MS05-052 or a later security bulletin for Internet Explorer are not at risk from attacks originating from the Internet zone.\r\nTop of sectionTop of section\r\nTop of sectionTop of section\r\n\t\r\nHTML Tag Memory Corruption Vulnerability - CVE-2006-1188:\r\n\r\nA remote code execution vulnerability exists in the way Internet Explorer handles HTML elements that contain a specially crafted tag. An attacker could exploit the vulnerability by constructing a malicious Web page that could potentially allow remote code execution if a user visited the malicious Web site. An attacker who successfully exploited this vulnerability could take complete control of an affected system.\r\n\t\r\nMitigating Factors for HTML Tag Memory Corruption Vulnerability - CVE-2006-1188:\r\n\u2022\t\r\n\r\nIn a Web-based attack scenario, an attacker would have to host a Web site that contains a Web page that is used to exploit this vulnerability. An attacker would have no way to force users to visit a malicious Web site. Instead, an attacker would have to persuade them to visit the Web site, typically by getting them to click a link that takes them to the attacker's Web site.\r\n\u2022\t\r\n\r\nAn attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.\r\n\u2022\t\r\n\r\nBy default, Internet Explorer on Windows Server 2003 runs in a restricted mode that is known as Enhanced Security Configuration. This mode mitigates this vulnerability in the e-mail vector because reading e-mail messages in plain text is the default configuration for Outlook Express. See the FAQ section of this security update for more information about Internet Explorer Enhanced Security Configuration.\r\n\u2022\t\r\n\r\nThis vulnerability does not affect Internet Explorer 5.01 Service Pack 4 on Windows 2000 Service Pack 4.\r\nTop of sectionTop of section\r\n\t\r\nWorkarounds for HTML Tag Memory Corruption Vulnerability - CVE-2006-1188:\r\n\r\nNo workarounds have been identified for this vulnerability.\r\nTop of sectionTop of section\r\n\t\r\nFAQ for HTML Tag Memory Corruption Vulnerability - CVE-2006-1188:\r\n\r\nWhat is the scope of the vulnerability?\r\nThis is a remote code execution vulnerability. An attacker who successfully exploited this vulnerability could remotely take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\r\n\r\nWhat causes the vulnerability?\r\nWhen Internet Explorer handles HTML elements containing a specially crafted tag, it may corrupt system memory in such a way that an attacker could execute arbitrary code.\r\n\r\nWhat might an attacker use the vulnerability to do?\r\nAn attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.\r\n\r\nHow could an attacker exploit the vulnerability?\r\nAn attacker could host a malicious Web site that is designed to exploit this vulnerability through Internet Explorer and then persuade a user to view the Web site. This can also include Web sites that accept user-provided content or advertisements, Web sites that host user-provided content or advertisements, and compromised Web sites. These Web sites could contain malicious content that could exploit this vulnerability. In all cases, however, an attacker would have no way to force users to visit these Web sites. Instead, an attacker would have to persuade users to visit the Web site, typically by getting them to click a link in an e-mail message or in an Instant Messenger request that takes users to the attacker's Web site. It could also be possible to display specially crafted Web content by using banner advertisements or by using other methods to deliver Web content to affected systems.\r\n\r\nWhat systems are primarily at risk from the vulnerability?\r\nThis vulnerability requires that a user is logged on and reading HTML e-mail messages or that a user is logged on and visits a Web site for any malicious action to occur. Therefore, any systems where HTML e-mail messages are read or where Internet Explorer is used frequently, such as workstations or terminal servers, are at the most risk from this vulnerability.\r\n\r\nWhat does the update do?\r\nThe update removes the vulnerability by modifying the way that Internet Explorer handles HTML elements containing the specially crafted tag so that Internet Explorer does not exit in an exploitable way.\r\n\r\nWhen this security bulletin was issued, had this vulnerability been publicly disclosed?\r\nYes. This vulnerability has been publicly disclosed. It has been assigned Common Vulnerability and Exposure number CVE-2006-1188.\r\n\r\nWhen this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?\r\nNo. Microsoft had seen examples of proof of concept code published publicly but had not received any information to indicate that this vulnerability had been publicly used to attack customers when this security bulletin was originally issued.\r\n\r\nDoes applying this security update help protect customers from the code that has been published publicly that attempts to exploit this vulnerability?\r\nYes. This security update addresses the vulnerability that potentially could be exploited by using the published proof of concept code. The vulnerability that has been addressed has been assigned the Common Vulnerability and Exposure number CVE-2006-1188.\r\nTop of sectionTop of section\r\nTop of sectionTop of section\r\n\t\r\nDouble-Byte Character Parsing Memory Corruption Vulnerability - CVE-2006-1189:\r\n\r\nA remote code execution vulnerability exists in the way Internet Explorer handles double-byte characters in specially crafted URLs. An attacker could exploit the vulnerability by constructing a malicious Web page that could potentially allow remote code execution if a user visited the malicious Web site. An attacker who successfully exploited this vulnerability could take complete control of an affected system.\r\n\t\r\nMitigating Factors for Double-Byte Character Parsing Memory Corruption Vulnerability - CVE-2006-1189:\r\n\u2022\t\r\n\r\nIn a Web-based attack scenario, an attacker would have to host a Web site that contains a Web page that is used to exploit this vulnerability. An attacker would have no way to force users to visit a malicious Web site. Instead, an attacker would have to persuade them to visit the Web site, typically by getting them to click a link that takes them to the attacker's Web site.\r\n\u2022\t\r\n\r\nAn attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.\r\n\u2022\t\r\n\r\nThe Restricted sites zone helps reduce attacks that could try to exploit this vulnerability by preventing Active Scripting from being used when reading HTML e-mail messages. However, if a user clicks a link in an e-mail message, they could still be vulnerable to this issue through the Web-based attack scenario.\r\n\r\nBy default, Outlook Express 6, Outlook 2002, and Outlook 2003 open HTML e-mail messages in the Restricted sites zone. Additionally Outlook 2000 opens HTML e-mail messages in the Restricted sites zone if the Outlook E-mail Security Update has been installed. Outlook Express 5.5 Service Pack 2 opens HTML e-mail messages in the Restricted sites zone if Microsoft Security Bulletin MS04-018 has been installed.\r\n\u2022\t\r\n\r\nBy default, Internet Explorer on Windows Server 2003 runs in a restricted mode that is known as Enhanced Security Configuration. This mode mitigates this vulnerability in the e-mail vector because reading e-mail messages in plain text is the default configuration for Outlook Express. See the FAQ section of this security update for more information about Internet Explorer Enhanced Security Configuration.\r\n\u2022\t\r\n\r\nThis vulnerability does not affect Internet Explorer 5.01 Service Pack 4 on Windows 2000 Service Pack 4 or Internet Explorer 6 for Windows Server 2003 Service Pack 1.\r\n\u2022\t\r\n\r\nThis vulnerability only affects systems that use Double-Byte Character Sets. Systems that are affected are Windows language versions that use a Double Byte Character Sets language. Examples of languages that use DBCS are Chinese languages, Japanese, and Korean languages. Customers using other language versions of Windows might also be affected if \u201cLanguage for non-Unicode programs\u201d has been set to a Double Byte Character Sets language.\r\nTop of sectionTop of section\r\n\t\r\nWorkarounds for Double-Byte Character Parsing Memory Corruption Vulnerability - CVE-2006-1189:\r\n\r\nNo workarounds have been identified for this vulnerability.\r\nTop of sectionTop of section\r\n\t\r\nFAQ for Double-Byte Character Parsing Memory Corruption Vulnerability - CVE-2006-1189:\r\n\r\nWhat is the scope of the vulnerability?\r\nThis is a remote code execution vulnerability. An attacker who successfully exploited this vulnerability could remotely take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\r\n\r\nWhat causes the vulnerability?\r\nWhen Internet Explorer handles double-byte characters in specially crafted URLs it may corrupt system memory in such a way that an attacker could execute arbitrary code.\r\n\r\nWhat are Double-Byte Character Sets?\r\nDouble-Byte Character Sets (DBCS) are an expanded 8-bit character set where the smallest unit is a byte. Some characters in a DBCS have a single byte code value and some have a double byte code value. A DBCS can be thought of as the ANSI character set for some Asian versions of Microsoft Windows. For more information, see the product documentation.\r\n\r\nHow do I know if I am running a DBCS locale?\r\nDBCS can be thought of as the ANSI character set for some Asian versions of Microsoft Windows. Examples of languages that use DBCS are Chinese, Japanese, and Korean languages. For more information about system locales and how to determine the system locale please visit this Microsoft Web site.\r\n\r\nWhat might an attacker use the vulnerability to do?\r\nAn attacker who successfully exploited this vulnerability could take complete control of the affected system. In a Web-based attack scenario, an attacker would host a Web site that exploits this vulnerability. An attacker would have no way to force users to visit a malicious Web site. Instead, an attacker would have to persuade them to visit the Web site, typically by getting them to click a link that takes them to the attacker's site. It could also be possible to display malicious Web content by using banner advertisements or by using other methods to deliver Web content to affected systems.\r\n\r\nHow could an attacker exploit the vulnerability?\r\nAn attacker could host a malicious Web site that is designed to exploit this vulnerability through Internet Explorer and then persuade a user to view the Web site.\r\n\r\nWhat systems are primarily at risk from the vulnerability?\r\nThis vulnerability requires that a user is logged on and reading HTML e-mail messages or that a user is logged on and visits a Web site for any malicious action to occur. Therefore, any systems where HTML e-mail messages are read or where Internet Explorer is used frequently, such as workstations or terminal servers, are at the most risk from this vulnerability.\r\n\r\nAre Windows 98, Windows 98 Second Edition or Windows Millennium Edition critically affected by this vulnerability?\r\nYes. Windows 98, Windows 98 Second Edition, and Windows Millennium Edition are critically affected by this vulnerability. The security updates are available from the Windows Update Web site. For more information about severity ratings, visit the following Web site.\r\n\r\nWhat does the update do?\r\nThe update removes the vulnerability by modifying the way that Internet Explorer handles double-byte characters in specially crafted URLs.\r\n\r\nWhen this security bulletin was issued, had this vulnerability been publicly disclosed?\r\nNo. Microsoft received information about this vulnerability through responsible disclosure.\r\n\r\nWhen this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?\r\nNo. Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers and had not seen any examples of proof of concept code published when this security bulletin was originally issued.\r\nTop of sectionTop of section\r\nTop of sectionTop of section\r\n\t\r\nScript Execution Vulnerability - CVE-2006-1190:\r\n\r\nA vulnerability exists in Internet Explorer in the way it returns IOleClientSite information when an embedded object is dynamically created. An attacker could exploit the vulnerability by constructing a malicious Web page with a dynamically created object. This object would need to make use of the IOleClientSite information returned to make a security related decision. This could potentially allow remote code execution or information disclosure if a user visited the malicious Web site. An attacker who successfully exploited this vulnerability could take complete control of an affected system.\r\n\t\r\nMitigating Factors for Script Execution Vulnerability - CVE-2006-1190:\r\n\u2022\t\r\n\r\nIn a Web-based attack scenario, an attacker would have to host a Web site that contains a Web page that is used to exploit this vulnerability. An attacker would have no way to force users to visit a malicious Web site. Instead, an attacker would have to persuade them to visit the Web site, typically by getting them to click a link that takes them to the attacker's Web site.\r\n\u2022\t\r\n\r\nAn attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.\r\n\u2022\t\r\n\r\nThe Restricted sites zone helps reduce attacks that could try to exploit this vulnerability by preventing Active Scripting from being used when reading HTML e-mail messages. However, if a user clicks a link in an e-mail message, they could still be vulnerable to this issue through the Web-based attack scenario.\r\n\r\nBy default, Outlook Express 6, Outlook 2002, and Outlook 2003 open HTML e-mail messages in the Restricted sites zone. Additionally Outlook 2000 opens HTML e-mail messages in the Restricted sites zone if the Outlook E-mail Security Update has been installed. Outlook Express 5.5 Service Pack 2 opens HTML e-mail messages in the Restricted sites zone if Microsoft Security Bulletin MS04-018 has been installed.\r\n\u2022\t\r\n\r\nBy default, Internet Explorer on Windows Server 2003 runs in a restricted mode that is known as Enhanced Security Configuration. This mode mitigates this vulnerability. See the FAQ section of this security update for more information about Internet Explorer Enhanced Security Configuration.\r\n\u2022\t\r\n\r\nThis vulnerability does not affect Internet Explorer 5.01 Service Pack 4 on Windows 2000 Service Pack 4.\r\nTop of sectionTop of section\r\n\t\r\nWorkarounds for Script Execution Vulnerability - CVE-2006-1190:\r\n\r\nMicrosoft has tested the following workarounds. While these workarounds will not correct the underlying vulnerability, they help block known attack vectors. When a workaround reduces functionality, it is identified in the following section.\r\n\u2022\t\r\n\r\nConfigure Internet Explorer to prompt before running ActiveX Controls or disable ActiveX Controls in the Internet and Local intranet security zone\r\n\r\nYou can help protect against this vulnerability by changing your settings to prompt before running ActiveX Controls or to disable ActiveX Controls in the Internet and Local intranet security zone. To do this, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nIn Internet Explorer, click Internet Options on the Tools menu.\r\n\r\n2.\r\n\t\r\n\r\nClick the Security tab.\r\n\r\n3.\r\n\t\r\n\r\nClick Internet, and then click Custom Level.\r\n\r\n4.\r\n\t\r\n\r\nUnder Settings, in the ActiveX controls and plug-ins section, under Run ActiveX controls and plug-ins, click Prompt or Disable, and then click OK.\r\n\r\n5.\r\n\t\r\n\r\nClick Local intranet, and then click Custom Level.\r\n\r\n6.\r\n\t\r\n\r\nUnder Settings, in the ActiveX controls and plug-ins section, under Run ActiveX controls and plug-ins, click Prompt or Disable, and then click OK.\r\n\r\n7.\r\n\t\r\n\r\nClick OK two times to return to Internet Explorer.\r\n\r\nNote Disabling ActiveX Controls in the Internet and Local intranet security zones may cause some Web sites to work incorrectly. If you have difficulty using a Web site after you change this setting, and you are sure the site is safe to use, you can add that site to your list of trusted sites. This will allow the site to work correctly.\r\n\r\nImpact of Workaround: There are side effects to prompting before running ActiveX Controls. Many Web sites that are on the Internet or on an intranet use ActiveX to provide additional functionality. For example, an online e-commerce site or banking site may use ActiveX Controls to provide menus, ordering forms, or even account statements. Prompting before running ActiveX Controls is a global setting that affects all Internet and intranet sites. You will be prompted frequently when you enable this workaround. For each prompt, if you feel you trust the site that you are visiting, click Yes to run ActiveX Controls. If you do not want to be prompted for all these sites, use the steps outlined in "Add sites that you trust to Internet Explorer's Trusted sites zone\u201d.\r\n\r\nAdd sites that you trust to Internet Explorer's Trusted sites zone.\r\n\r\nAfter you set Internet Explorer to require a prompt before it runs ActiveX controls and Active Scripting in the Internet zone and in the Local intranet zone, you can add sites that you trust to Internet Explorer's Trusted sites zone. This will allow you to continue to use trusted Web sites exactly as you do today, while helping to protect you from this attack on untrusted sites. We recommend that you add only sites that you trust to the Trusted sites zone.\r\n\r\nTo do this, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nIn Internet Explorer, click Tools, click Internet Options, and then click the Security tab.\r\n\r\n2.\r\n\t\r\n\r\nIn the Select a Web content zone to specify its current security settings box, click Trusted Sites, and then click Sites.\r\n\r\n3.\r\n\t\r\n\r\nIf you want to add sites that do not require an encrypted channel, click to clear the Require server verification (https:) for all sites in this zone check box.\r\n\r\n4.\r\n\t\r\n\r\nIn the Add this Web site to the zone box, type the URL of a site that you trust, and then click Add.\r\n\r\n5.\r\n\t\r\n\r\nRepeat these steps for each site that you want to add to the zone.\r\n\r\n6.\r\n\t\r\n\r\nClick OK two times to accept the changes and return to Internet Explorer.\r\n\r\nNote Add any sites that you trust not to take malicious action on your computer. Two in particular that you may want to add are "*.windowsupdate.microsoft.com" and \u201c*.update.microsoft.com\u201d (without the quotation marks). These are the sites that will host the update, and it requires an ActiveX Control to install the update.\r\n\u2022\t\r\n\r\nConfigure Internet Explorer to prompt before running Active Scripting or disable Active Scripting in the Internet and Local intranet security zone\r\n\r\nYou can help protect against this vulnerability by changing your settings to prompt before running Active Scripting or to disable Active Scripting in the Internet and Local intranet security zone. To do this, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nIn Internet Explorer, click Internet Options on the Tools menu.\r\n\r\n2.\r\n\t\r\n\r\nClick the Security tab.\r\n\r\n3.\r\n\t\r\n\r\nClick Internet, and then click Custom Level.\r\n\r\n4.\r\n\t\r\n\r\nUnder Settings, in the Scripting section, under Active Scripting, click Prompt or Disable, and then click OK.\r\n\r\n5.\r\n\t\r\n\r\nClick Local intranet, and then click Custom Level.\r\n\r\n6.\r\n\t\r\n\r\nUnder Settings, in the Scripting section, under Active Scripting, click Prompt or Disable, and then click OK.\r\n\r\n7.\r\n\t\r\n\r\nClick OK two times to return to Internet Explorer.\r\n\r\nNote Disabling Active Scripting in the Internet and Local intranet security zones may cause some Web sites to work incorrectly. If you have difficulty using a Web site after you change this setting, and you are sure the site is safe to use, you can add that site to your list of trusted sites. This will allow the site to work correctly.\r\n\r\nImpact of Workaround: There are side effects to prompting before running Active Scripting. Many Web sites that are on the Internet or on an intranet use Active Scripting to provide additional functionality. For example, an online e-commerce site or banking site may use Active Scripting to provide menus, ordering forms, or even account statements. Prompting before running Active Scripting is a global setting that affects all Internet and intranet sites. You will be prompted frequently when you enable this workaround. For each prompt, if you feel you trust the site that you are visiting, click Yes to run Active Scripting. If you do not want to be prompted for all these sites, use the steps outlined in "Add sites that you trust to Internet Explorer's Trusted sites zone\u201d.\r\n\r\nAdd sites that you trust to Internet Explorer's Trusted sites zone.\r\n\r\nAfter you set Internet Explorer to require a prompt before it runs ActiveX controls and Active Scripting in the Internet zone and in the Local intranet zone, you can add sites that you trust to Internet Explorer's Trusted sites zone. This will allow you to continue to use trusted Web sites exactly as you do today, while helping to protect you from this attack on untrusted sites. We recommend that you add only sites that you trust to the Trusted sites zone.\r\n\r\nTo do this, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nIn Internet Explorer, click Tools, click Internet Options, and then click the Security tab.\r\n\r\n2.\r\n\t\r\n\r\nIn the Select a Web content zone to specify its current security settings box, click Trusted Sites, and then click Sites.\r\n\r\n3.\r\n\t\r\n\r\nIf you want to add sites that do not require an encrypted channel, click to clear the Require server verification (https:) for all sites in this zone check box.\r\n\r\n4.\r\n\t\r\n\r\nIn the Add this Web site to the zone box, type the URL of a site that you trust, and then click Add.\r\n\r\n5.\r\n\t\r\n\r\nRepeat these steps for each site that you want to add to the zone.\r\n\r\n6.\r\n\t\r\n\r\nClick OK two times to accept the changes and return to Internet Explorer.\r\n\r\nNote Add any sites that you trust not to take malicious action on your computer. Two in particular that you may want to add are "*.windowsupdate.microsoft.com" and \u201c*.update.microsoft.com\u201d (without the quotation marks). These are the sites that will host the update, and it requires an ActiveX Control to install the update.\r\n\u2022\t\r\n\r\nSet Internet and Local intranet security zone settings to \u201cHigh\u201d to prompt before running ActiveX Controls and Active Scripting in these zones\r\n\r\nYou can help protect against this vulnerability by changing your settings for the Internet security zone to prompt before running ActiveX controls. You can do this by setting your browser security to High.\r\n\r\nTo raise the browsing security level in Microsoft Internet Explorer, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nOn the Internet Explorer Tools menu, click Internet Options.\r\n\r\n2.\r\n\t\r\n\r\nIn the Internet Options dialog box, click the Security tab, and then click the Internet icon.\r\n\r\n3.\r\n\t\r\n\r\nUnder Security level for this zone, move the slider to High. This sets the security level for all Web sites you visit to High.\r\n\r\nNote If no slider is visible, click Default Level, and then move the slider to High.\r\n\r\nNote Setting the level to High may cause some Web sites to work incorrectly. If you have difficulty using a Web site after you change this setting, and you are sure the site is safe to use, you can add that site to your list of trusted sites. This will allow the site to work correctly even with the security setting set to High.\r\n\r\nImpact of Workaround: There are side effects to prompting before running ActiveX Controls and Active Scripting. Many Web sites that are on the Internet or on an intranet use ActiveX or Active Scripting to provide additional functionality. For example, an online e-commerce site or banking site may use ActiveX Controls to provide menus, ordering forms, or even account statements. Prompting before running ActiveX Controls or Active Scripting is a global setting that affects all Internet and intranet sites. You will be prompted frequently when you enable this workaround. For each prompt, if you feel you trust the site that you are visiting, click Yes to run ActiveX Controls or Active Scripting. If you do not want to be prompted for all these sites, use the steps outlined in "Add sites that you trust to Internet Explorer's Trusted sites zone\u201d.\r\n\r\nAdd sites that you trust to Internet Explorer's Trusted sites zone.\r\n\r\nAfter you set Internet Explorer to require a prompt before it runs ActiveX controls and Active Scripting in the Internet zone and in the Local intranet zone, you can add sites that you trust to Internet Explorer's Trusted sites zone. This will allow you to continue to use trusted Web sites exactly as you do today, while helping to protect you from this attack on untrusted sites. We recommend that you add only sites that you trust to the Trusted sites zone.\r\n\r\nTo do this, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nIn Internet Explorer, click Tools, click Internet Options, and then click the Security tab.\r\n\r\n2.\r\n\t\r\n\r\nIn the Select a Web content zone to specify its current security settings box, click Trusted Sites, and then click Sites.\r\n\r\n3.\r\n\t\r\n\r\nIf you want to add sites that do not require an encrypted channel, click to clear the Require server verification (https:) for all sites in this zone check box.\r\n\r\n4.\r\n\t\r\n\r\nIn the Add this Web site to the zone box, type the URL of a site that you trust, and then click Add.\r\n\r\n5.\r\n\t\r\n\r\nRepeat these steps for each site that you want to add to the zone.\r\n\r\n6.\r\n\t\r\n\r\nClick OK two times to accept the changes and return to Internet Explorer.\r\n\r\nNote Add any sites that you trust not to take malicious action on your computer. Two in particular that you may want to add are "*.windowsupdate.microsoft.com" and \u201c*.update.microsoft.com\u201d (without the quotation marks). These are the sites that will host the update, and it requires an ActiveX Control to install the update.\r\nTop of sectionTop of section\r\n\t\r\nFAQ for Script Execution Vulnerability - CVE-2006-1190:\r\n\r\nWhat is the scope of the vulnerability?\r\nA vulnerability exists in Internet Explorer that could potentially allow remote code execution or information disclosure. An attacker who successfully exploited this could at worst remotely take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\r\n\r\nWhat causes the vulnerability?\r\nInternet Explorer may return erroneous IOleClientSite information when an embedded object is dynamically created. This could allow this object to use the IOleClientSite information returned to make an incorrect security related decision and run in the context of the wrong site or the wrong Internet Explorer security zone.\r\n\r\nWhat is IOleClientSite?\r\nThe IOleClientSite interface is the primary means by which an embedded object obtains information about the location and extent of its display site, its moniker, its user interface, and other resources provided by its container. For more information, see the product documentation.\r\n\r\nWhat are Internet Explorer security zones?\r\nInternet Explorer security zones are part of a system that divides online content into categories or zones, based on the trustworthiness of the content. Specific Web domains can be assigned to a zone, depending on how much trust is put in the content of each domain. The zone then restricts the capabilities of the Web content, based on the zone's policy. By default, most Internet domains are treated as part of the Internet zone. By default, the policy of the Internet zone prevents scripts and other active code from accessing resources on the local system.\r\n\r\nWhat might an attacker use the vulnerability to do?\r\nAn attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.\r\n\r\nHow could an attacker exploit the vulnerability?\r\nAn attacker could host a malicious Web site that is designed to exploit this vulnerability through Internet Explorer and then persuade a user to view the Web site. This can also include Web sites that accept user-provided content or advertisements, Web sites that host user-provided content or advertisements, and compromised Web sites. These Web sites could contain malicious content that could exploit this vulnerability. In all cases, however, an attacker would have no way to force users to visit these Web sites. Instead, an attacker would have to persuade users to visit the Web site, typically by getting them to click a link in an e-mail message or in an Instant Messenger request that takes users to the attacker's Web site. It could also be possible to display specially crafted Web content by using banner advertisements or by using other methods to deliver Web content to affected systems.\r\n\r\nWhat systems are primarily at risk from the vulnerability?\r\nThis vulnerability requires a user to be logged on and visiting a Web site for any malicious action to occur. Therefore, any systems where Internet Explorer is used frequently, such as workstations or terminal servers, are at the most risk from this vulnerability.\r\n\r\nWhat does the update do?\r\nThe update removes the vulnerability by modifying Internet Explorer so that it returns the correct IOleClientSite information.\r\n\r\nWhen this security bulletin was issued, had this vulnerability been publicly disclosed?\r\nNo. Microsoft received information about this vulnerability through responsible disclosure.\r\n\r\nWhen this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?\r\nNo. Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers and had not seen any examples of proof of concept code published when this security bulletin was originally issued.\r\nTop of sectionTop of section\r\nTop of sectionTop of section\r\n\t\r\nCross-Domain Information Disclosure Vulnerability - CVE-2006-1191:\r\n\r\nAn information disclosure vulnerability exists in Internet Explorer because of the way that it handles navigation methods. An attacker could exploit the vulnerability by constructing a malicious Web page that could potentially lead to information disclosure if a user visited a malicious Web site or viewed a specially crafted e-mail message. An attacker who successfully exploited this vulnerability could read cookies or other data from another Internet Explorer domain. However, user interaction is required to exploit this vulnerability.\r\n\t\r\nMitigating Factors for Cross-Domain Information Disclosure Vulnerability - CVE-2006-1191:\r\n\u2022\t\r\n\r\nIn a Web-based attack scenario, an attacker would have to host a Web site that contains a Web page that is used to exploit this vulnerability. An attacker would have no way to force users to visit a malicious Web site. Instead, an attacker would have to persuade them to visit the Web site, typically by getting them to click a link that takes them to the attacker's Web site.\r\n\u2022\t\r\n\r\nAn attacker who successfully exploited this vulnerability could gain access to read cookies or other data from a system other than that of the attacker\u2019s Web site.\r\n\u2022\t\r\n\r\nThe Restricted sites zone helps reduce attacks that could try to exploit this vulnerability by preventing Active Scripting from being used when reading HTML e-mail messages. However, if a user clicks a link in an e-mail message, they could still be vulnerable to this issue through the Web-based attack scenario.\r\n\r\nBy default, Outlook Express 6, Outlook 2002, and Outlook 2003 open HTML e-mail messages in the Restricted sites zone. Additionally Outlook 2000 opens HTML e-mail messages in the Restricted sites zone if the Outlook E-mail Security Update has been installed. Outlook Express 5.5 Service Pack 2 opens HTML e-mail messages in the Restricted sites zone if Microsoft Security Bulletin MS04-018 has been installed.\r\n\u2022\t\r\n\r\nBy default, Internet Explorer on Windows Server 2003 runs in a restricted mode that is known as Enhanced Security Configuration. This mode mitigates this vulnerability in the e-mail vector because reading e-mail messages in plain text is the default configuration for Outlook Express. See the FAQ section of this security update for more information about Internet Explorer Enhanced Security Configuration.\r\n\u2022\t\r\n\r\nThis vulnerability does not affect the following versions of Windows:\r\n\u2022\t\r\n\r\nWindows 2000 Service Pack 4\r\n\u2022\t\r\n\r\nWindows XP Service Pack 1\r\n\u2022\t\r\n\r\nWindows XP Professional x64 Edition\r\n\u2022\t\r\n\r\nWindows Server 2003\r\n\u2022\t\r\n\r\nWindows Server 2003 for Itanium-based Systems and Windows Server 2003 with Service Pack 1 for Itanium-based Systems\r\n\u2022\t\r\n\r\nWindows Server 2003 x64 Edition\r\n\u2022\t\r\n\r\nWindows 98, Windows 98 Second Edition (SE), and Windows Millennium Edition (ME)\r\nTop of sectionTop of section\r\n\t\r\nWorkarounds for Cross-Domain Information Disclosure Vulnerability - CVE-2006-1191:\r\n\r\nMicrosoft has tested the following workarounds. While these workarounds will not correct the underlying vulnerability, they help block known attack vectors. When a workaround reduces functionality, it is identified in the following section.\r\n\u2022\t\r\n\r\nConfigure Internet Explorer to prompt before running Active Scripting or disable Active Scripting in the Internet and Local intranet security zone\r\n\r\nYou can help protect against this vulnerability by changing your settings to prompt before running Active Scripting or to disable Active Scripting in the Internet and Local intranet security zone. To do this, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nIn Internet Explorer, click Internet Options on the Tools menu.\r\n\r\n2.\r\n\t\r\n\r\nClick the Security tab.\r\n\r\n3.\r\n\t\r\n\r\nClick Internet, and then click Custom Level.\r\n\r\n4.\r\n\t\r\n\r\nUnder Settings, in the Scripting section, under Active Scripting, click Prompt or Disable, and then click OK.\r\n\r\n5.\r\n\t\r\n\r\nClick Local intranet, and then click Custom Level.\r\n\r\n6.\r\n\t\r\n\r\nUnder Settings, in the Scripting section, under Active Scripting, click Prompt or Disable, and then click OK.\r\n\r\n7.\r\n\t\r\n\r\nClick OK two times to return to Internet Explorer.\r\n\r\nNote Disabling Active Scripting in the Internet and Local intranet security zones may cause some Web sites to work incorrectly. If you have difficulty using a Web site after you change this setting, and you are sure the site is safe to use, you can add that site to your list of trusted sites. This will allow the site to work correctly.\r\n\r\nImpact of Workaround: There are side effects to prompting before running Active Scripting. Many Web sites that are on the Internet or on an intranet use Active Scripting to provide additional functionality. For example, an online e-commerce site or banking site may use Active Scripting to provide menus, ordering forms, or even account statements. Prompting before running Active Scripting is a global setting that affects all Internet and intranet sites. You will be prompted frequently when you enable this workaround. For each prompt, if you feel you trust the site that you are visiting, click Yes to run Active Scripting. If you do not want to be prompted for all these sites, use the steps outlined in "Add sites that you trust to Internet Explorer's Trusted sites zone\u201d.\r\n\r\nAdd sites that you trust to Internet Explorer's Trusted sites zone.\r\n\r\nAfter you set Internet Explorer to require a prompt before it runs ActiveX controls and Active Scripting in the Internet zone and in the Local intranet zone, you can add sites that you trust to Internet Explorer's Trusted sites zone. This will allow you to continue to use trusted Web sites exactly as you do today, while helping to protect you from this attack on untrusted sites. We recommend that you add only sites that you trust to the Trusted sites zone.\r\n\r\nTo do this, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nIn Internet Explorer, click Tools, click Internet Options, and then click the Security tab.\r\n\r\n2.\r\n\t\r\n\r\nIn the Select a Web content zone to specify its current security settings box, click Trusted Sites, and then click Sites.\r\n\r\n3.\r\n\t\r\n\r\nIf you want to add sites that do not require an encrypted channel, click to clear the Require server verification (https:) for all sites in this zone check box.\r\n\r\n4.\r\n\t\r\n\r\nIn the Add this Web site to the zone box, type the URL of a site that you trust, and then click Add.\r\n\r\n5.\r\n\t\r\n\r\nRepeat these steps for each site that you want to add to the zone.\r\n\r\n6.\r\n\t\r\n\r\nClick OK two times to accept the changes and return to Internet Explorer.\r\n\r\nNote Add any sites that you trust not to take malicious action on your computer. Two in particular that you may want to add are "*.windowsupdate.microsoft.com" and \u201c*.update.microsoft.com\u201d (without the quotation marks). These are the sites that will host the update, and it requires an ActiveX Control to install the update.\r\n\u2022\t\r\n\r\nSet Internet and Local intranet security zone settings to \u201cHigh\u201d to prompt before running ActiveX Controls and Active Scripting in these zones\r\n\r\nYou can help protect against this vulnerability by changing your settings for the Internet security zone to prompt before running ActiveX controls. You can do this by setting your browser security to High.\r\n\r\nTo raise the browsing security level in Microsoft Internet Explorer, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nOn the Internet Explorer Tools menu, click Internet Options.\r\n\r\n2.\r\n\t\r\n\r\nIn the Internet Options dialog box, click the Security tab, and then click the Internet icon.\r\n\r\n3.\r\n\t\r\n\r\nUnder Security level for this zone, move the slider to High. This sets the security level for all Web sites you visit to High.\r\n\r\nNote If no slider is visible, click Default Level, and then move the slider to High.\r\n\r\nNote Setting the level to High may cause some Web sites to work incorrectly. If you have difficulty using a Web site after you change this setting, and you are sure the site is safe to use, you can add that site to your list of trusted sites. This will allow the site to work correctly even with the security setting set to High.\r\n\r\nImpact of Workaround: There are side effects to prompting before running ActiveX Controls and Active Scripting. Many Web sites that are on the Internet or on an intranet use ActiveX or Active Scripting to provide additional functionality. For example, an online e-commerce site or banking site may use ActiveX Controls to provide menus, ordering forms, or even account statements. Prompting before running ActiveX Controls or Active Scripting is a global setting that affects all Internet and intranet sites. You will be prompted frequently when you enable this workaround. For each prompt, if you feel you trust the site that you are visiting, click Yes to run ActiveX Controls or Active Scripting. If you do not want to be prompted for all these sites, use the steps outlined in "Add sites that you trust to Internet Explorer's Trusted sites zone\u201d.\r\n\r\nAdd sites that you trust to Internet Explorer's Trusted sites zone.\r\n\r\nAfter you set Internet Explorer to require a prompt before it runs ActiveX controls and Active Scripting in the Internet zone and in the Local intranet zone, you can add sites that you trust to Internet Explorer's Trusted sites zone. This will allow you to continue to use trusted Web sites exactly as you do today, while helping to protect you from this attack on untrusted sites. We recommend that you add only sites that you trust to the Trusted sites zone.\r\n\r\nTo do this, follow these steps:\r\n\r\n1.\r\n\t\r\n\r\nIn Internet Explorer, click Tools, click Internet Options, and then click the Security tab.\r\n\r\n2.\r\n\t\r\n\r\nIn the Select a Web content zone to specify its current security settings box, click Trusted Sites, and then click Sites.\r\n\r\n3.\r\n\t\r\n\r\nIf you want to add sites that do not require an encrypted channel, click to clear the Require server verification (https:) for all sites in this zone check box.\r\n\r\n4.\r\n\t\r\n\r\nIn the Add this Web site to the zone box, type the URL of a site that you trust, and then click Add.\r\n\r\n5.\r\n\t\r\n\r\nRepeat these steps for each site that you want to add to the zone.\r\n\r\n6.\r\n\t\r\n\r\nClick OK two times to accept the changes and return to Internet Explorer.\r\n\r\nNote Add any sites that you trust not to take malicious action on your computer. Two in particular that you may want to add are "*.windowsupdate.microsoft.com" and \u201c*.update.microsoft.com\u201d (without the quotation marks). These are the sites that will host the update, and it requires an ActiveX Control to install the update.\r\nTop of sectionTop of section\r\n\t\r\nFAQ for Cross-Domain Information Disclosure Vulnerability - CVE-2006-1191:\r\n\r\nWhat is the scope of the vulnerability?\r\nThis is an information disclosure vulnerability. An attacker could exploit the vulnerability by constructing a malicious Web page that could potentially lead to information disclosure or spoofing if a user visited a malicious Web site. An attacker who successfully exploited this vulnerability could read cookies or other data from another Internet Explorer domain. However, user interaction is required to exploit this vulnerability.\r\n\r\nWhat causes the vulnerability?\r\nInternet Explorer allows script to run in a browser window after a navigation to another site has been performed.\r\n\r\nWhat are Internet Explorer security zones?\r\nInternet Explorer security zones are part of a system that divides online content into categories or zones, based on the trustworthiness of the content. Specific Web domains can be assigned to a zone, depending on how much trust is put in the content of each domain. The zone then restricts the capabilities of the Web content, based on the zone's policy. By default, most Internet domains are treated as part of the Internet zone. By default, the policy of the Internet zone prevents scripts and other active code from accessing resources on the local system.\r\n\r\nWhat might an attacker use the vulnerability to do?\r\nAn attacker who successfully exploited this vulnerability could read cookies or other data from another security zone or domain in Internet Explorer.\r\n\r\nHow could an attacker exploit the vulnerability?\r\nAn attacker could host a malicious Web site that is designed to exploit this vulnerability through Internet Explorer and then persuade a user to view the Web site. This can also include Web sites that accept user-provided content or advertisements, Web sites that host user-provided content or advertisements, and compromised Web sites. These Web sites could contain malicious content that could exploit this vulnerability. In all cases, however, an attacker would have no way to force users to visit these Web sites. Instead, an attacker would have to persuade users to visit the Web site, typically by getting them to click a link in an e-mail message or in an Instant Messenger request that takes users to the attacker's Web site. It could also be possible to display specially crafted Web content by using banner advertisements or by using other methods to deliver Web content to affected systems.\r\n\r\nWhat systems are primarily at risk from the vulnerability?\r\nThis vulnerability requires a user to be logged on and visiting a Web site for any malicious action to occur. Therefore, any systems where Internet Explorer is used frequently, such as workstations or terminal servers, are at the most risk from this vulnerability.\r\n\r\nWhat does the update do?\r\nThe update removes the vulnerability by changing Internet Explorer so that it correctly identifies the domain from which the browser window originated.\r\n\r\nWhen this security bulletin was issued, had this vulnerability been publicly disclosed?\r\nNo. Microsoft received information about this vulnerability through responsible disclosure.\r\n\r\nWhen this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?\r\nNo. Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers and had not seen any examples of proof of concept code published when this security bulletin was originally issued.\r\nTop of sectionTop of section\r\nTop of sectionTop of section\r\n\t\r\nAddress Bar Spoofing Vulnerability - CVE-2006-1192:\r\n\r\nA spoofing vulnerability exists in Internet Explorer that could allow an attacker to display spoofed content in a browser window. The address bar and other parts of the trust UI has been navigated away from the attacker\u2019s Web site but the content of the window still contains the attacker\u2019s Web page.\r\n\t\r\nMitigating Factors for Address Bar Spoofing Vulnerability - CVE-2006-1192:\r\n\u2022\t\r\n\r\nIn a Web-based attack scenario, an attacker would have to host a Web site that contains a Web page that is used to exploit this vulnerability. An attacker would have no way to force users to visit a malicious Web site. Instead, an attacker would have to persuade them to visit the Web site, typically by getting them to click a link that takes them to the attacker's Web site.\r\n\u2022\t\r\n\r\nInteracting with the Web page, for instance, by clicking on it, will cause the content to refresh and display the Web site identified by the address bar.\r\n\u2022\t\r\n\r\nThe Restricted sites zone helps reduce attacks that could try to exploit this vulnerability by preventing Active Scripting from being used when reading HTML e-mail messages. However, if a user clicks a link in an e-mail message, they could still be vulnerable to this issue through the Web-based attack scenario.\r\n\r\nBy default, Outlook Express 6, Outlook 2002, and Outlook 2003 open HTML e-mail messages in the Restricted sites zone. Additionally Outlook 2000 opens HTML e-mail messages in the Restricted sites zone if the Outlook E-mail Security Update has been installed. Outlook Express 5.5 Service Pack 2 opens HTML e-mail messages in the Restricted sites zone if Microsoft Security Bulletin MS04-018 has been installed.\r\n\u2022\t\r\n\r\nBy default, Internet Explorer on Windows Server 2003 runs in a restricted mode that is known as Enhanced Security Configuration. This mode mitigates this vulnerability. See the FAQ section or this security update for more information about Internet Explorer Enhanced Security Configuration.\r\nTop of sectionTop of section\r\n\t\r\nWorkarounds for Address Bar Spoofing Vulnerability - CVE-2006-1192:\r\n\r\nNo workarounds have been identified for this vulnerability.\r\nTop of sectionTop of section\r\n\t\r\nFAQ for Address Bar Spoofing Vulnerability - CVE-2006-1192:\r\n\r\nWhat is the scope of the vulnerability?\r\nThis is a spoofing vulnerability in Internet Explorer. The vulnerability could allow an attacker to display spoofed content in a browser window. Interacting with the Web page, for instance, by clicking on it, will cause the content to refresh and display the Web site pointed out by the address bar.\r\n\r\nWhat causes the vulnerability?\r\nIt is possible to navigate the Internet Explorer address bar and other parts of the trust UI away from the attacker\u2019s Web site but persist the content of the window.\r\n\r\nHow could an attacker exploit the vulnerability?\r\nAn attacker could use this vulnerability to create a Web page that would display a URL of the attacker's choosing in the Address bar, while displaying a different Web site in the browser window. An attacker could use this vulnerability to create a malicious page that spoofs a legitimate site. However, it would not be possible to interact with this same Web site.\r\n\r\nWhat systems are primarily at risk from the vulnerability?\r\nThis vulnerability requires a user to be logged on and visiting a Web site for any malicious action to occur. Therefore, any systems where Internet Explorer is used frequently, such as workstations or terminal servers, are at the most risk from this vulnerability.\r\n\r\nWhat does the update do?\r\nThe update removes the vulnerability by not allowing the window content to persist after navigation has occurred.\r\n\r\nWhen this security bulletin was issued, had this vulnerability been publicly disclosed?\r\nNo. Microsoft received information about this vulnerability through responsible disclosure.\r\n\r\nWhen this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?\r\nNo. Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers and had not seen any examples of proof of concept code published when this security bulletin was originally issued.\r\nTop of sectionTop of section\r\nTop of sectionTop of section\r\nTop of sectionTop of section\r\n\r\nMicrosoft Baseline Security Analyzer\r\n\r\nTo verify that a security update has been applied to an affected system, you can use the Microsoft Baseline Security Analyzer (MBSA) tool. MBSA allows administrators to scan local and remote systems for missing security updates and for common security misconfigurations. For more information about MBSA, visit the Microsoft Baseline Security Analyzer Web site.\r\n\u2022\t\r\n\r\nFile Version Verification\r\n\r\nNote Because there are several versions of Microsoft Windows, the following steps may be different on your computer. If they are, see your product documentation to complete these steps.\r\n\r\n1.\r\n\t\r\n\r\nClick Start, and then click Search.\r\n\r\n2.\r\n\t\r\n\r\nIn the Search Results pane, click All files and folders under Search Companion.\r\n\r\n3.\r\n\t\r\n\r\nIn the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.\r\n\r\n4.\r\n\t\r\n\r\nIn the list of files, right-click a file name from the appropriate file information table, and then click Properties.\r\n\r\nNote Depending on the version of the operating system or programs installed, some of the files that are listed in the file information table may not be installed.\r\n\r\n5.\r\n\t\r\n\r\nOn the Version tab, determine the version of the file that is installed on your computer by comparing it to the version that is documented in the appropriate file information table.\r\n\r\nNote Attributes other than the file version may change during installation. Comparing other file attributes to the information in the file information table is not a supported method of verifying that the update has been applied. Also, in certain cases, files may be renamed during installation. If the file or version information is not present, use one of the other available methods to verify update installation.\r\n\u2022\t\r\n\r\nRegistry Key Verification\r\n\r\nYou may also be able to verify the files that this security update has installed by reviewing the following registry key:\r\n\r\nHKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates\Internet Explorer 5.01\SP4\KB912812-IE501SP4-20060322.172831\Filelist\r\n\r\nNote This registry key may not contain a complete list of installed files. Also, this registry key may not be created correctly when an administrator or an OEM integrates or slipstreams the 912812 security update into the Windows installation source files.\r\nTop of sectionTop of section\r\nTop of sectionTop of section\r\n\r\nAcknowledgments\r\n\r\nMicrosoft thanks the following for working with us to help protect customers:\r\n\u2022\t\r\n\r\nAndreas Sandblad of Secunia for reporting the DHTML Method Call Memory Corruption Vulnerability (CVE-2006-1359).\r\n\u2022\t\r\n\r\nJeffrey van der Stad for reporting the HTA Execution Vulnerability (CVE-2006-1388).\r\n\u2022\t\r\n\r\nJan P. Monsch of Compass Security Network Computing AG for reporting the HTML Parsing Vulnerability (CVE-2006-1185).\r\n\u2022\t\r\n\r\nRichard M. Smith of Boston Software Forensics for reporting class identifiers documented in the COM Object Instantiation Memory Corruption Vulnerability (CVE-2006-1186).\r\n\u2022\t\r\n\r\nThomas Waldegger for reporting a variant of the HTML Tag Memory Corruption Vulnerability (CVE-2006-1188).\r\n\u2022\t\r\n\r\nSowhat of Nevis Labs for reporting the Double Byte Character Parsing Memory Corruption Vulnerability (CVE-2006-1189).\r\n\u2022\t\r\n\r\nHeiko Schultze of SAP for reporting the Script Execution Vulnerability (CVE-2006-1190).\r\n\u2022\t\r\n\r\nWill Dormann of CERT/CC reporting the issues in the ActiveX controls included with Danim.dll and Dxtmsft.dll for which kill bits have been set in this security update.\r\n\r\nObtaining Other Security Updates:\r\n\r\nUpdates for other security issues are available at the following locations:\r\n\u2022\t\r\n\r\nSecurity updates are available in the Microsoft Download Center. You can find them most easily by doing a keyword search for "security_patch."\r\n\u2022\t\r\n\r\nUpdates for consumer platforms are available at the Microsoft Update Web site.\r\n\r\nSupport:\r\n\u2022\t\r\n\r\nCustomers in the U.S. and Canada can receive technical support from Microsoft Product Support Services at 1-866-PCSAFETY. There is no charge for support calls that are associated with security updates.\r\n\u2022\t\r\n\r\nInternational customers can receive support from their local Microsoft subsidiaries. There is no charge for support that is associated with security updates. For more information about how to contact Microsoft for support issues, visit the International Support Web site.\r\n\r\nSecurity Resources:\r\n\u2022\t\r\n\r\nThe Microsoft TechNet Security Web site provides additional information about security in Microsoft products.\r\n\u2022\t\r\n\r\nMicrosoft Software Update Services\r\n\u2022\t\r\n\r\nMicrosoft Windows Server Update Services\r\n\u2022\t\r\n\r\nMicrosoft Baseline Security Analyzer (MBSA)\r\n\u2022\t\r\n\r\nWindows Update\r\n\u2022\t\r\n\r\nMicrosoft Update\r\n\u2022\t\r\n\r\nWindows Update Catalog: For more information about the Windows Update Catalog, see Microsoft Knowledge Base Article 323166.\r\n\u2022\t\r\n\r\nOffice Update \r\n\r\nSoftware Update Services:\r\n\r\nBy using Microsoft Software Update Services (SUS), administrators can quickly and reliably deploy the latest critical updates and security updates to Windows 2000 and Windows Server 2003-based servers, and to desktop systems that are running Windows 2000 Professional or Windows XP Professional.\r\n\r\nFor more information about how to deploy security updates by using Software Update Services, visit the Software Update Services Web site.\r\n\r\nWindows Server Update Services:\r\n\r\nBy using Windows Server Update Services (WSUS), administrators can quickly and reliably deploy the latest critical updates and security updates for Windows 2000 operating systems and later, Office XP and later, Exchange Server 2003, and SQL Server 2000 onto Windows 2000 and later operating systems.\r\n\r\nFor more information about how to deploy security updates using Windows Server Update Services, visit the Windows Server Update Services Web site.\r\n\r\nSystems Management Server:\r\n\r\nMicrosoft Systems Management Server (SMS) delivers a highly-configurable enterprise solution for managing updates. By using SMS, administrators can identify Windows-based systems that require security updates and can perform controlled deployment of these updates throughout the enterprise with minimal disruption to end users. For more information about how administrators can use SMS 2003 to deploy security updates, visit the SMS 2003 Security Patch Management Web site. SMS 2.0 users can also use Software Updates Service Feature Pack to help deploy security updates. For information about SMS, visit the SMS Web site.\r\n\r\nNote SMS uses the Microsoft Baseline Security Analyzer, the Microsoft Office Detection Tool, and the Enterprise Update Scanning Tool to provide broad support for security bulletin update detection and deployment. Some software updates may not be detected by these tools. Administrators can use the inventory capabilities of the SMS in these cases to target updates to specific systems. For more information about this procedure, visit the following Web site. Some security updates require administrative rights following a restart of the system. Administrators can use the Elevated Rights Deployment Tool (available in the SMS 2003 Administration Feature Pack and in the SMS 2.0 Administration Feature Pack) to install these updates.\r\n\r\nDisclaimer:\r\n\r\nThe information provided in the Microsoft Knowledge Base is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.\r\n\r\nRevisions:\r\n\u2022\t\r\n\r\nV1.0 (April 11, 2006): Bulletin published", "edition": 1, "modified": "2006-04-11T00:00:00", "published": "2006-04-11T00:00:00", "id": "SECURITYVULNS:DOC:12166", "href": "https://vulners.com/securityvulns/SECURITYVULNS:DOC:12166", "title": "Microsoft Security Bulletin MS06-013 Cumulative Security Update for Internet Explorer (912812)", "type": "securityvulns", "cvss": {"score": 10.0, "vector": "AV:NETWORK/AC:LOW/Au:NONE/C:COMPLETE/I:COMPLETE/A:COMPLETE/"}}], "exploitdb": [{"lastseen": "2016-01-31T14:58:50", "description": "MS Internet Explorer (HTML Tag) Memory Corruption (MS06-013). CVE-2006-1185,CVE-2006-1186,CVE-2006-1188,CVE-2006-1189,CVE-2006-1190,CVE-2006-1191,CVE-2006-11...", "published": "2006-05-27T00:00:00", "type": "exploitdb", "title": "Microsoft Internet Explorer HTML Tag Memory Corruption MS06-013", "bulletinFamily": "exploit", "cvelist": ["CVE-2006-1192", "CVE-2006-1186", "CVE-2006-1245", "CVE-2006-1185", "CVE-2006-1388", "CVE-2006-1188", "CVE-2006-1190", "CVE-2006-1359", "CVE-2006-1191", "CVE-2006-1189"], "modified": "2006-05-27T00:00:00", "id": "EDB-ID:1838", "href": "https://www.exploit-db.com/exploits/1838/", "sourceData": "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \r\n \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\r\n<html> <fieldset> <h4>\r\n<pre><td>\r\n<menu>\r\n<legend>\r\n<a>\r\n<ul>\r\n<small>\r\n<fieldset>\r\n<h6>\r\n</h6\r\n></u>\r\n</optgroup>\r\n</tr>\r\n</map>\r\n</ul\r\n></dfn>\r\n\r\n</del>\r\n</h2>\r\n</dir>\r\n</ul>\r\n# milw0rm.com [2006-05-27]\r\n", "cvss": {"score": 10.0, "vector": "AV:NETWORK/AC:LOW/Au:NONE/C:COMPLETE/I:COMPLETE/A:COMPLETE/"}, "sourceHref": "https://www.exploit-db.com/download/1838/"}], "nessus": [{"lastseen": "2021-01-01T05:43:23", "description": "The remote host is missing IE Cumulative Security Update 912812.\n\nThe remote version of IE is vulnerable to several flaws that could allow\nan attacker to execute arbitrary code on the remote host.", "edition": 26, "published": "2006-04-11T00:00:00", "title": "MS06-013: Cumulative Security Update for Internet Explorer (912812)", "type": "nessus", "bulletinFamily": "scanner", "cvelist": ["CVE-2006-1192", "CVE-2006-1186", "CVE-2006-1245", "CVE-2006-1185", "CVE-2006-1388", "CVE-2006-1188", "CVE-2006-1190", "CVE-2006-1359", "CVE-2006-1191", "CVE-2006-1189"], "modified": "2021-01-02T00:00:00", "cpe": ["cpe:/o:microsoft:windows"], "id": "SMB_NT_MS06-013.NASL", "href": "https://www.tenable.com/plugins/nessus/21210", "sourceData": "#\n# (C) Tenable Network Security, Inc.\n#\n\ninclude(\"compat.inc\");\n\nif (description)\n{\n script_id(21210);\n script_version(\"1.44\");\n script_cvs_date(\"Date: 2018/11/15 20:50:29\");\n\n script_cve_id(\n \"CVE-2006-1359\",\n \"CVE-2006-1245\",\n \"CVE-2006-1388\",\n \"CVE-2006-1185\",\n \"CVE-2006-1186\",\n \"CVE-2006-1188\",\n \"CVE-2006-1189\",\n \"CVE-2006-1190\",\n \"CVE-2006-1191\",\n \"CVE-2006-1192\"\n );\n script_bugtraq_id(\n 17131,\n 17181,\n 17196,\n 17468,\n 17460,\n 17457,\n 17455,\n 17454,\n 17453,\n 17450\n );\n script_xref(name:\"CERT\", value:\"876678\");\n script_xref(name:\"MSFT\", value:\"MS06-013\");\n script_xref(name:\"MSKB\", value:\"912812\");\n\n script_name(english:\"MS06-013: Cumulative Security Update for Internet Explorer (912812)\");\n script_summary(english:\"Determines the presence of update 912812\");\n\n script_set_attribute(attribute:\"synopsis\", value:\n\"Arbitrary code can be executed on the remote host through the web\nclient.\");\n script_set_attribute(attribute:\"description\", value:\n\"The remote host is missing IE Cumulative Security Update 912812.\n\nThe remote version of IE is vulnerable to several flaws that could allow\nan attacker to execute arbitrary code on the remote host.\");\n script_set_attribute(attribute:\"see_also\", value:\"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2006/ms06-013\");\n script_set_attribute(attribute:\"solution\", value:\n\"Microsoft has released a set of patches for Windows 2000, XP and\n2003.\");\n script_set_cvss_base_vector(\"CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C\");\n script_set_cvss_temporal_vector(\"CVSS2#E:H/RL:OF/RC:C\");\n script_set_attribute(attribute:\"exploitability_ease\", value:\"Exploits are available\");\n script_set_attribute(attribute:\"exploit_available\", value:\"true\");\n script_set_attribute(attribute:\"exploited_by_malware\", value:\"true\");\n script_set_attribute(attribute:\"metasploit_name\", value:'MS06-013 Microsoft Internet Explorer createTextRange() Code Execution');\n script_set_attribute(attribute:\"exploit_framework_metasploit\", value:\"true\");\n script_cwe_id(94);\n\n script_set_attribute(attribute:\"vuln_publication_date\", value:\"2006/03/13\");\n script_set_attribute(attribute:\"patch_publication_date\", value:\"2006/04/11\");\n script_set_attribute(attribute:\"plugin_publication_date\", value:\"2006/04/11\");\n\n script_set_attribute(attribute:\"plugin_type\", value:\"local\");\n script_set_attribute(attribute:\"cpe\", value:\"cpe:/o:microsoft:windows\");\n script_end_attributes();\n\n script_category(ACT_GATHER_INFO);\n\n script_copyright(english:\"This script is Copyright (C) 2006-2018 Tenable Network Security, Inc.\");\n script_family(english:\"Windows : Microsoft Bulletins\");\n\n script_dependencies(\"smb_hotfixes.nasl\", \"ms_bulletin_checks_possible.nasl\");\n script_require_keys(\"SMB/MS_Bulletin_Checks/Possible\");\n script_require_ports(139, 445, 'Host/patch_management_checks');\n exit(0);\n}\n\ninclude(\"audit.inc\");\ninclude(\"smb_hotfixes_fcheck.inc\");\ninclude(\"smb_hotfixes.inc\");\ninclude(\"smb_func.inc\");\ninclude(\"misc_func.inc\");\n\nget_kb_item_or_exit(\"SMB/MS_Bulletin_Checks/Possible\");\n\nbulletin = 'MS06-013';\nkb = '912812';\n\nkbs = make_list(kb);\nif (get_kb_item(\"Host/patch_management_checks\")) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);\n\nget_kb_item_or_exit(\"SMB/Registry/Enumerated\");\nget_kb_item_or_exit('SMB/WindowsVersion', exit_code:1);\n\nif (hotfix_check_sp_range(win2k:'4,5', xp:'1,2', win2003:'0,1') <= 0) audit(AUDIT_OS_SP_NOT_VULN);\n\nrootfile = hotfix_get_systemroot();\nif (!rootfile) exit(1, \"Failed to get the system root.\");\n\nshare = hotfix_path2share(path:rootfile);\nif (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);\n\nif ( hotfix_is_vulnerable(os:\"5.2\", sp:0, file:\"Mshtml.dll\", version:\"6.0.3790.497\", dir:\"\\system32\", bulletin:bulletin, kb:kb) ||\n hotfix_is_vulnerable(os:\"5.2\", sp:1, file:\"Mshtml.dll\", version:\"6.0.3790.2666\", dir:\"\\system32\", bulletin:bulletin, kb:kb) ||\n hotfix_is_vulnerable(os:\"5.1\", sp:1, file:\"Mshtml.dll\", version:\"6.0.2800.1543\", dir:\"\\system32\", bulletin:bulletin, kb:kb) ||\n hotfix_is_vulnerable(os:\"5.1\", sp:2, file:\"Mshtml.dll\", version:\"6.0.2900.2873\", dir:\"\\system32\", bulletin:bulletin, kb:kb) ||\n hotfix_is_vulnerable(os:\"5.0\", file:\"Mshtml.dll\", version:\"6.0.2800.1543\", min_version:\"6.0.0.0\", dir:\"\\system32\", bulletin:bulletin, kb:kb) ||\n hotfix_is_vulnerable(os:\"5.0\", file:\"Mshtml.dll\", version:\"5.0.3839.2200\", dir:\"\\system32\", bulletin:bulletin, kb:kb) )\n{\n set_kb_item(name:\"SMB/Missing/\"+bulletin, value:TRUE);\n hotfix_security_hole();\n\n hotfix_check_fversion_end();\n exit(0);\n}\nelse\n{\n hotfix_check_fversion_end();\n audit(AUDIT_HOST_NOT, 'affected');\n}\n", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}], "mskb": [{"lastseen": "2021-01-01T22:40:15", "bulletinFamily": "microsoft", "cvelist": ["CVE-2006-1192", "CVE-2006-1186", "CVE-2006-1245", "CVE-2006-1185", "CVE-2006-1388", "CVE-2006-1188", "CVE-2006-1190", "CVE-2006-1359", "CVE-2006-1191", "CVE-2006-1189"], "description": "<html><body><p>Describes the MS06-013 security update rollup for Internet Explorer</p><h2></h2><div class=\"kb-notice-section section\"></div><h2></h2><div class=\"kb-summary-section section\">Microsoft has released security bulletin MS06-013. This security bulletin contains all the relevant information about the security update. This information includes the file manifest information and the deployment options. To view the complete security bulletin, visit one of the following Microsoft Web sites, as appropriate for your situation:<br/><ul class=\"sbody-free_list\"><li>Home users:<br/><div class=\"indent\"><a href=\"http://www.microsoft.com/athome/security/update/bulletins/200604.mspx\" id=\"kb-link-1\" target=\"_self\">http://www.microsoft.com/athome/security/update/bulletins/200604.mspx</a></div></li><li>IT professionals:<br/><div class=\"indent\"><a href=\"http://www.microsoft.com/technet/security/bulletin/ms06-013.mspx\" id=\"kb-link-2\" target=\"_self\">http://www.microsoft.com/technet/security/bulletin/ms06-013.mspx</a></div></li></ul><span class=\"text-base\">Notes</span><ul class=\"sbody-free_list\"><li><span class=\"text-base\">Controls that prompt before they are loaded</span><br/><span class=\"text-base\">Note</span> This issue occurs on Web sites that do not use the recommended techniques. This issue is resolved by using the techniques that are described on the following Web site:<br/><div class=\"indent\"><a href=\"http://msdn.microsoft.com/en-us/ie/default.aspx\" id=\"kb-link-3\" target=\"_self\">http://msdn.microsoft.com/en-us/ie/default.aspx</a></div><br/>When certain controls are loaded on a Web page, the controls are not correctly masked by the functionality of this update. These controls include controls that are used in Macromedia Shockwave Director, in QuickTime Player, and in Virtools Web Player. When Windows determines that a control is inactive, the system prompts the user before the control is loaded.</li><li><span class=\"text-base\">Compatibility Patch Available (security update 917425)</span><br/>The Internet Explorer ActiveX update (update 912945), is contained in this cumulative security update for Windows XP Service Pack 2, for Windows Server 2003 Service Pack 1, for Windows XP Professional x64 Edition, for Windows Server 2003 x64 Edition family, and for Windows Server 2003 with Service Pack 1 for Itanium-based Systems. With this update, customers can interact with Microsoft ActiveX controls that are loaded in certain Web pages only after they manually activate their user interfaces by clicking these interfaces or by using the TAB key and ENTER keys. To help customers who need more time to prepare for the update, Microsoft released a Compatibility Patch. After it is deployed, the Compatibility Patch will temporarily return Internet Explorer to the way that it used to handle ActiveX controls. This patch will function until the June cumulative Internet Explorer update is released. Then, the changes to the way Internet Explorer handles ActiveX controls will be permanent. <span><div class=\"indent\"><a href=\"https://support.microsoft.com/en-us/help/917425\" id=\"kb-link-4\">917425 </a> Internet Explorer ActiveX compatibility patch for Mshtml.dll<br/></div></span></li><li><span class=\"text-base\">Siebel programs that use ActiveX controls</span><br/>Software update 912945 affects all Siebel 7 High Interactive clients. After you apply this update, you must click several times to interact with the Siebel program. You must click one time for each ActiveX control in the program. Siebel is working with Microsoft to identify a solution. A Siebel product update is expected to be released in the spring of 2006. Customers can apply the Compatibility Patch 917425 to disable the Internet Explorer ActiveX update behavior. For more information about Siebel product updates, contact Siebel support.<br/> </li><li><span class=\"text-base\">Siebel program hangs</span><br/>There is a known issue where Siebel 7 client hangs when users apply security update 912812. Customers can apply the Compatibility Patch 917425 to disable the Internet Explorer ActiveX update behavior. A Siebel product update is expected to be released in the spring of 2006. For more information about Siebel product updates, contact Siebel support.<br/><br/><br/></li><li><span class=\"text-base\">ActiveX controls that use Java Platform, Standard Edition 1.3 or Standard Edition 1.4</span><br/>After you click on an ActiveX applet control in a program that runs the applet control by using Java Platform, Standard Edition (J2SE) 1.3 or J2SE 1.4, the focus does not go to the applet control. You must click the control a second time to establish focus. The focus behavior works correctly in J2SE 1.5. To obtain the latest version of J2SE, visit the following Sun Microsystems, Inc. Web site:<br/><div class=\"indent\"><a href=\"http://java.sun.com/j2se\" id=\"kb-link-5\" target=\"_self\">http://java.sun.com/j2se</a></div><br/>For techniques that you can use to make sure that ActiveX controls function without user interaction, visit the following MSDN Web site:<br/><div class=\"indent\"><a href=\"http://msdn.microsoft.com/en-us/ie/default.aspx\" id=\"kb-link-6\" target=\"_self\">http://msdn.microsoft.com/en-us/ie/default.aspx</a></div></li><li>Cumulative security update 910620 includes the security fixes that are documented in security bulletin MS06-004. The update rollup also includes hotfixes for Microsoft Internet Explorer that have been released after the release of security bulletin MS04-004 and after the release of security bulletin MS04-038.</li><li>If update rollup 873377, update rollup 889669, or an Internet Explorer hotfix that was released after security bulletin MS04-038 are not installed, and if you want to install the hotfixes that are included in update rollup 896727, you must follow the instructions in Microsoft Knowledge Base article 897225. Otherwise, all Internet Explorer hotfixes that you have installed are removed.<br/><span><div class=\"indent\"><a href=\"https://support.microsoft.com/en-us/help/897225\" id=\"kb-link-7\">897225 </a> How to install hotfixes that are included in cumulative security updates for Internet Explorer 6 Service Pack 1</div></span><br/></li></ul></div><h2>More Information</h2><div class=\"kb-moreinformation-section section\"><h3 class=\"sbody-h3\">Known issues</h3><ul class=\"sbody-free_list\"><li>In Microsoft Windows XP with Service Pack 2 and in Microsoft Windows Server 2003 with Service Pack 1, the Add or Remove Programs item in Control Panel lists software updates. Add or Remove Programs lists software updates under the name of the product that the updates apply to. In Windows XP with Service Pack 2, Add or Remove Programs lists this update under Windows XP - Software Updates. In Windows XP with Service Pack 2, Add or Remove Programs does not show \"Installed On\" information for this software update. Therefore, this software update does not appear in the order of installation. Instead, this software update appears at the top of the Windows XP \u2013 Software Updates list.<br/></li><li>After you install this security update, chapters in some Windows Media High Definition Video (WMV HD) DVDs do not play when you click the chapters in Microsoft Windows Media Player.<br/><br/><br/>For more information about this issue, click the following article number to view the article in the Microsoft Knowledge Base:<br/><span><div class=\"indent\"><a href=\"https://support.microsoft.com/en-us/help/884487\" id=\"kb-link-8\">884487 </a> A chapter does not play when you click it in some WMV HD DVD disks in Windows Media Player</div></span></li><li>ActiveX controls may not load as you expect in Internet Explorer. For more information about this issue, click the following article number to view the article in the Microsoft Knowledge Base:<span><div class=\"indent\"><a href=\"https://support.microsoft.com/en-us/help/909889\" id=\"kb-link-9\">909889 </a> ActiveX controls may not load as expected in Internet Explorer due to defense in depth changes introduced in cumulative security update 896688 (MS05-052)</div></span></li><li>A Web page that contains an ActiveX control may not load as you expect in Internet Explorer. For more information about this issue, click the following article number to view the article in the Microsoft Knowledge Base:<br/><span><div class=\"indent\"><a href=\"https://support.microsoft.com/en-us/help/909738\" id=\"kb-link-10\">909738 </a> A Web page that contains a custom ActiveX control may not load as expected in Internet Explorer due to defense in depth changes introduced in cumulative security update 896688 (MS05-052)</div></span></li><li>The use of monikers is no longer supported in Internet Explorer. For more information about this issue, click the following article number to view the article in the Microsoft Knowledge Base:<br/><span><div class=\"indent\"><a href=\"https://support.microsoft.com/en-us/help/906294\" id=\"kb-link-11\">906294 </a> The use of monikers is no longer supported in Internet Explorer after installing the security updates provided by cumulative security update 896727 (MS05-038)</div></span></li><li>A security warning dialog box for mixed content appears when you open PDF files by using HTTPS URLs. In certain cases, after you apply update 912945, a security warning dialog appears when mixed content is displayed. This problem occurs when you try to open a PDF file by using HTTPS URLs. This issue is resolved in the latest Internet Explorer cumulative update (916281). <span>For more information, click the following article number to view the article in the Microsoft Knowledge Base:<br/><div class=\"indent\"><a href=\"https://support.microsoft.com/en-us/help/916281\" id=\"kb-link-12\">916281 </a>MS06-021: Cumulative security update for Internet Explorer</div></span></li><li>.NET controls <br/>Access violations have been reported with pages that include Microsoft .NET WinForms controls. This issue is resolved in the latest Internet Explorer cumulative update (916281).<br/></li><li>Performance issues<br/>In certain cases, when a page contains many ActiveX controls that require activation, the page may render very slowly. This issue is resolved in the latest Internet Explorer cumulative update (916281).</li><li>After you apply this security update for Internet Explorer 6 Service Pack 1 in Microsoft Windows 98, in Microsoft Windows 98 SE, or in Microsoft Windows Millennium Edition, you may be unable to install new ActiveX controls from Internet Explorer. Microsoft plans to address the issue in the next Internet Explorer Cumulative Update. Until that time, customers may install the ActiveX control from a separate installation source that does not use Internet Explorer. </li></ul></div></body></html>", "edition": 16, "modified": "2017-03-30T05:55:09", "id": "KB912812", "href": "https://support.microsoft.com/en-us/help/912812/", "published": "2017-03-30T05:55:09", "title": "MS06-013: Cumulative security update for Internet Explorer", "type": "mskb", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}]}
