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Multiple remote code execution vulnerabilities have been reported in Microsoft Internet Explorer. The vulnerabilities are due to several memory corruption errors in Microsoft Internet Explorer when instantiating the vulnerable COM objects as ActiveX Controls, when accessing a object that was already deleted, when handling a property method and when the 'mdsauth.dll' COM object within Microsoft Internet Explorer allows the overwrite of arbitrary files. 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Multiple remote code execution vulnerabilities have been reported in Microsoft Internet Explorer. The vulnerabilities are due to several memory corruption errors in Microsoft Internet Explorer when instantiating the vulnerable COM objects as ActiveX Controls, when accessing a object that was already deleted, when handling a property method and when the 'mdsauth.dll' COM object within Microsoft Internet Explorer allows the overwrite of arbitrary files. Successful exploitation of these issues allows execution of arbitrary code on the vulnerable system.", "cvss3": {}, "published": "2014-01-07T00:00:00", "type": "checkpoint_advisories", "title": "Internet Explorer mdsauth.dll Arbitrary File Overwrite - Ver2 (CVE-2007-2221)", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2007-2221"], "modified": "2014-01-07T00:00:00", "id": "CPAI-2014-0086", "href": "", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-07-05T18:55:19", "description": "A file overwrite vulnerability have been reported in Microsoft Internet Explorer. Successful exploitation of this vulnerability could allow a remote attacker to create or overwrite arbitrary files on the affected system.", "cvss3": {}, "published": "2014-02-03T00:00:00", "type": "checkpoint_advisories", "title": "Internet Explorer mdsauth.dll Arbitrary File Overwrite - Ver2 (CVE-2007-2221)", "bulletinFamily": "info", "cvss2": {}, "cvelist": ["CVE-2007-2221"], "modified": "2022-07-05T00:00:00", "id": "CPAI-2014-0773", "href": "", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2021-12-17T12:37:33", "description": "Microsoft Internet Explorer (IE) is a web browser application that is capable of rendering both static and dynamic web content. The application is primarily used for tasks related to browsing the web, such as displaying HTML encoded pages, downloading files, etc. Extensions to the basic HTML standard allows ability to dynamically change the document structure at the client side, called DHTML. Normally, a client side scripting language is facilitated in order to allow the developers to control the document dynamically, changing it while being displayed. A memory corruption vulnerability exists in the way Microsoft Internet Explorer handles HTML Objects. The vulnerability is due to attempts to access freed objects in certain situations that pertain to HTML objects. Remote attackers can exploit this vulnerability by persuading target users to visit a specially crafted Web page. Successful exploitation would corrupt memory and may allow the attacker to execute arbitrary code on the vulnerable client system, in the context of the logged in user. An attack targeting this vulnerability can result in injection and execution of arbitrary code. If code execution is successful, the behaviour of the target will depend on the intention of the attacker. Any code injected will be executed within the security context of the currently logged in user. In the case of an unsuccessful code execution attack, Internet Explorer may terminate abnormally.", "cvss3": {}, "published": "2010-07-04T00:00:00", "type": "checkpoint_advisories", "title": "Microsoft Internet Explorer 7 HTML Object Memory Corruption (CVE-2007-0947)", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": true, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2007-0947"], "modified": "2010-07-04T00:00:00", "id": "CPAI-2007-270", "href": "", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2021-12-17T12:10:40", "description": "Microsoft Internet Explorer is the most widely used Internet browser. Multiple remote code execution vulnerabilities have been reported in Microsoft Internet Explorer. The vulnerabilities are due to several memory corruption errors in Microsoft Internet Explorer when instantiating the vulnerable COM objects as ActiveX Controls, when accessing a object that was already deleted, when handling a property method and when the 'mdsauth.dll' COM object within Microsoft Internet Explorer allows the overwrite of arbitrary files. Successful exploitation of these issues allows execution of arbitrary code on the vulnerable system.", "cvss3": {}, "published": "2014-01-07T00:00:00", "type": "checkpoint_advisories", "title": "Microsoft Internet Explorer mergeAttribues Property Handling Memory Corruption - Ver2 (CVE-2007-0945)", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": true, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2007-0945"], "modified": "2014-01-07T00:00:00", "id": "CPAI-2014-0011", "href": "", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-07-05T18:55:24", "description": "A memory corruption vulnerability has been reported in Microsoft Internet Explorer. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the affected system.", "cvss3": {}, "published": "2014-02-03T00:00:00", "type": "checkpoint_advisories", "title": "Microsoft Internet Explorer mergeAttribues Property Handling Memory Corruption - Ver2 (CVE-2007-0945)", "bulletinFamily": "info", "cvss2": {}, "cvelist": ["CVE-2007-0945"], "modified": "2022-07-05T00:00:00", "id": "CPAI-2014-0799", "href": "", "cvss": {"score": 0.0, "vector": "NONE"}}], "securityvulns": [{"lastseen": "2018-08-31T11:09:25", "description": "Multiple memory corruption on COM objects and HTML parsing, files rewrite.", "edition": 1, "cvss3": {}, "published": "2007-05-10T00:00:00", "title": "Microsoft Internet Explorer multiple security vulnerabilities", "type": "securityvulns", "bulletinFamily": "software", "cvss2": {}, "cvelist": ["CVE-2007-0947", "CVE-2007-2221", "CVE-2007-0945", "CVE-2007-0946", "CVE-2007-0944", "CVE-2007-0942"], "modified": "2007-05-10T00:00:00", "id": "SECURITYVULNS:VULN:7681", "href": "https://vulners.com/securityvulns/SECURITYVULNS:VULN:7681", "cvss": {"score": 9.3, "vector": "AV:NETWORK/AC:MEDIUM/Au:NONE/C:COMPLETE/I:COMPLETE/A:COMPLETE/"}}, {"lastseen": "2018-08-31T11:10:22", "description": "Microsoft Security Bulletin MS07-027\r\nCumulative Security Update for Internet Explorer &#40;931768&#41;\r\nPublished: May 8, 2007\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 &#40;FAQ&#41; section of this bulletin for details.\r\n\r\nCaveats: Microsoft Knowledge Base Article 931768 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 931768.\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 2\r\n\u2022\t\r\n\r\nMicrosoft Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2\r\n\u2022\t\r\n\r\nMicrosoft Windows Server 2003 Service Pack 1 and Microsoft Windows Server 2003 Service Pack 2\r\n\u2022\t\r\n\r\nMicrosoft Windows Server 2003 with SP1 for Itanium-based Systems and Microsoft Windows Server 2003 with SP2 for Itanium-based Systems\r\n\u2022\t\r\n\r\nMicrosoft Windows Server 2003 x64 Edition Service Pack 1 and Microsoft Windows Server 2003 x64 Edition Service Pack 2\r\n\u2022\t\r\n\r\nWindows Vista\r\n\u2022\t\r\n\r\nWindows Vista x64 Edition\r\n\r\nTested Microsoft Windows Components:\r\n\r\nAffected Components:\r\n\u2022\t\r\n\r\nMicrosoft Internet Explorer 5.01 Service Pack 4 on Windows 2000 Service Pack 4 \u2014 Download the update\r\n\u2022\t\r\n\r\nMicrosoft Internet Explorer 6 Service Pack 1 when installed on Windows 2000 Service Pack 4 \u2014 Download the update\r\n\u2022\t\r\n\r\nMicrosoft Internet Explorer 6 for Windows XP Service Pack 2 \u2014 Download the update\r\n\u2022\t\r\n\r\nMicrosoft Internet Explorer 6 for Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2 \u2014 Download the update\r\n\u2022\t\r\n\r\nMicrosoft Internet Explorer 6 for Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 \u2014 Download the update\r\n\u2022\t\r\n\r\nMicrosoft Internet Explorer 6 for Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based Systems \u2014 Download the update\r\n\u2022\t\r\n\r\nMicrosoft Internet Explorer 6 for Windows Server 2003 x64 Edition Service Pack 1 and Windows Server 2003 x64 Edition Service Pack 2 \u2014 Download the update\r\n\u2022\t\r\n\r\nWindows Internet Explorer 7 for Windows XP Service Pack 2 \u2014 Download the update\r\n\u2022\t\r\n\r\nWindows Internet Explorer 7 for Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2 \u2014 Download the update\r\n\u2022\t\r\n\r\nWindows Internet Explorer 7 for Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2 \u2014 Download the update\r\n\u2022\t\r\n\r\nWindows Internet Explorer 7 for Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based Systems \u2014 Download the update\r\n\u2022\t\r\n\r\nWindows Internet Explorer 7 for Windows Server 2003 x64 Edition Service Pack 1 and Windows Server 2003 x64 Edition Service Pack 2 \u2014 Download the update\r\n\u2022\t\r\n\r\nWindows Internet Explorer 7 in Windows Vista \u2014 Download the update\r\n\u2022\t\r\n\r\nWindows Internet Explorer 7 in Windows Vista x64 Edition \u2014 Download the update\r\n\r\nThe software in this list has been tested to determine whether the versions are affected. Other versions are either past their support life cycle or are not 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, privately reported and public vulnerabilities. Each vulnerability is documented in its own subsection in the Vulnerability Details 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 the same user rights as the logged-on 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\nWe recommend that customers apply the update immediately.\r\n\r\nSeverity Ratings and Vulnerability Identifiers:\r\nVulnerability Identifiers\tImpact of Vulnerability\tInternet Explorer 5.01 Service Pack 4 on Windows 2000 Service Pack 4\tInternet Explorer 6 Service Pack 1 when installed on Windows 2000 Service Pack 4\tInternet Explorer 6 for Windows XP Service Pack 2\tInternet Explorer 6 for Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2\tWindows Internet Explorer 7 for Windows XP Service Pack 2\tWindows Internet Explorer 7 for Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2\tWindows Internet Explorer 7 in Windows Vista\r\n\r\nCOM Object Instantiation Memory Corruption Vulnerability - CVE-2007-0942\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\nModerate\r\n\t\r\n\r\nImportant\r\n\t\r\n\r\nLow\r\n\t\r\n\r\nImportant\r\n\r\nUninitialized Memory Corruption Vulnerability - CVE-2007-0944\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\nModerate\r\n\t\r\n\r\nNone\r\n\t\r\n\r\nNone\r\n\t\r\n\r\nNone\r\n\r\nProperty Memory Corruption Vulnerability - CVE-2007-0945\r\n\t\r\n\r\nRemote Code Execution\r\n\t\r\n\r\nNone\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\nCritical\r\n\t\r\n\r\nModerate\r\n\t\r\n\r\nCritical\r\n\r\nHTML Objects Memory Corruption Vulnerabilities - CVE-2007-0946, CVE-2007-0947\r\n\t\r\n\r\nRemote Code Execution\r\n\t\r\n\r\nNone\r\n\t\r\n\r\nNone\r\n\t\r\n\r\nNone\r\n\t\r\n\r\nNone\r\n\t\r\n\r\nImportant\r\n\t\r\n\r\nModerate\r\n\t\r\n\r\nImportant\r\n\r\nArbitrary File Rewrite Vulnerability - CVE-2007-2221\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\nModerate\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nModerate\r\n\t\r\n\r\nCritical\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\nModerate\r\n\t\r\n\r\nCritical\r\n\t\r\n\r\nModerate\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 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 Windows XP Professional x64 Edition Service Pack 2 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 Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 x64 Edition Service Pack 1 severity rating is the same as the Internet Explorer 6 for Windows Server 2003 Service Pack 1 severity rating.\r\n\u2022\t\r\n\r\nThe Internet Explorer 6 for Windows Server 2003 with SP2 for Itanium-based Systems and Windows Server 2003 x64 Edition Service Pack 2 severity rating is the same as the Internet Explorer 6 for Windows Server 2003 Service Pack 2 severity rating.\r\n\u2022\t\r\n\r\nThe Windows Internet Explorer 7 for Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2 severity rating is the same as the Internet Explorer 7 for Windows XP Service Pack 2 severity rating.\r\n\u2022\t\r\n\r\nThe Windows Internet Explorer 7 for Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 x64 Edition Service Pack 1 severity rating is the same as the Windows Internet Explorer 7 for Windows Server 2003 Service Pack 1 severity rating.\r\n\u2022\t\r\n\r\nThe Windows Internet Explorer 7 for Windows Server 2003 with SP2 for Itanium-based Systems and Windows Server 2003 x64 Edition Service Pack 2 severity rating is the same as the Internet Explorer 7 for Windows Server 2003 Service Pack 2 severity rating.\r\n\u2022\t\r\n\r\nThe Windows Internet Explorer 7 in Windows Vista x64 Edition severity rating is the same as the Windows Internet Explorer 7 in Windows Vista severity rating.\r\nTop of sectionTop of section\r\n\t\r\nFrequently Asked Questions &#40;FAQ&#41; Related to This Security Update\r\n\r\nWhy does this update address several reported security vulnerabilities? \r\nThis update contains support for several vulnerabilities because the modifications that are required to address these issues are located in related files. Instead of having to install several updates that are almost the same, customers can install only this update.\r\n\r\nWhat updates does this release replace? \r\nThis security update replaces several prior security updates. The most recent security bulletin ID and affected operating systems are listed in the following table.\r\nBulletin ID\tInternet Explorer 5.01 Service Pack 4 on Windows 2000 Service Pack 4\tInternet Explorer 6 Service Pack 1 when installed on Windows 2000 Service Pack 4\tInternet Explorer 6 for Windows XP Service Pack 2\tInternet Explorer 6 for Windows Server 2003 and Windows Server 2003 Service Pack 1\tWindows Internet Explorer 7 for Windows XP Service Pack 2\tWindows Internet Explorer 7 for Windows Server 2003 Service Pack 1\tWindows Internet Explorer 7 in Windows Vista\r\n\r\nMS07-016\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\t\r\n\r\nReplaced\r\n\t\r\n\r\nNot applicable\r\n\r\nWhat are the known issues that customers may experience when they install this security update? \r\nMicrosoft Knowledge Base Article 931768 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 931768.\r\n\r\nDoes this update contain any security-related changes that are not Internet Explorer specific? \r\nYes. The changes are listed in the \u201cVulnerability Details\u201d section of this bulletin as the \u201cArbitrary File Rewrite Vulnerability - CVE-2007-2221\u201d. The Microsoft ActiveX Control discussed there is no longer supported .\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, this update includes the following security update:\r\n\r\nThis update includes killbits that will prevent the following ActiveX controls from being run in Internet Explorer:\r\n\u2022\t\r\n\r\nThis security update sets a killbit for the ActiveX control LaunchApp Software, available from Acer Incorporated. Acer Incorporated has released a security bulletin and an update that addresses a vulnerability in the effected component. For more information and download locations, see the security bulletin from Acer Incorporated. This kill bit is being set at the request of the owner of the ActiveX controls. The class identifier &#40;CLSID&#41; for this ActiveX control is:\r\n\u2022\t\r\n\r\n{D9998BD0-7957-11D2-8FED-00606730D3AA}\r\n\u2022\t\r\n\r\nThis security update sets a killbit for an ActiveX control developed by Research In Motion &#40;RIM&#41;. Research In Motion &#40;RIM&#41; has released a security bulletin and an update that addresses a vulnerability in the effected component. For more information and download locations, see the security bulletin from Research In Motion. This kill bit is being set at the request of the owner of the ActiveX controls. The class identifier &#40;CLSID&#41; for this ActiveX control is:\r\n\u2022\t\r\n\r\n{1D95A7C7-3282-4DB7-9A48-7C39CE152A19}\r\n\r\nCan I use the Microsoft Baseline Security Analyzer &#40;MBSA&#41; to determine whether this update is required? \r\nThe following table provides the MBSA detection summary for this security update.\r\nSoftware\tMBSA 1.2.1\tMBSA 2.0.1\r\n\r\nMicrosoft Windows 2000 Service Pack 4\r\n\t\r\n\r\nYes\r\n\t\r\n\r\nYes\r\n\r\nMicrosoft Windows XP Service Pack 2\r\n\t\r\n\r\nYes\r\n\t\r\n\r\nYes\r\n\r\nMicrosoft Windows XP Professional x64 Edition and Microsoft Windows XP Professional x64 Edition Service Pack 2\r\n\t\r\n\r\nNo\r\n\t\r\n\r\nYes\r\n\r\nMicrosoft Windows Server 2003 Service Pack 1 and Microsoft Windows Server 2003 Service Pack 2\r\n\t\r\n\r\nYes\r\n\t\r\n\r\nYes\r\n\r\nMicrosoft Windows Server 2003 with SP1 for Itanium-based Systems and Microsoft Windows Server 2003 with SP2 for Itanium-based Systems\r\n\t\r\n\r\nNo\r\n\t\r\n\r\nYes\r\n\r\nMicrosoft Windows Server 2003 x64 Edition Service Pack 1 and Microsoft Windows Server 2003 x64 Edition Service Pack 2\r\n\t\r\n\r\nNo\r\n\t\r\n\r\nYes\r\n\r\nWindows Vista\r\n\t\r\n\r\nNo\r\n\t\r\n\r\nSee Note for Windows Vista below\r\n\r\nWindows Vista x64 Edition\r\n\t\r\n\r\nNo\r\n\t\r\n\r\nSee Note for Windows Vista below\r\n\r\nFor more information about MBSA, visit the MBSA Web site. For more information about the software that Microsoft Update and MBSA 2.0 currently do not detect, see Microsoft Knowledge Base Article 895660.\r\n\r\nNote for Windows Vista Microsoft does not support installing MBSA 2.0.1 on computers that run Windows Vista, but you may install MBSA 2.0.1 on a supported operating system and then scan the Windows Vista-based computer remotely. For additional information about MBSA support for Windows Vista, visit the MBSA Web site. See also Microsoft Knowledge Base Article 931943: Microsoft Baseline Security Analyzer &#40;MBSA&#41; support for Windows Vista.\r\n\r\nFor more detailed information, see Microsoft Knowledge Base Article 910723: Summary list of monthly detection and deployment guidance articles.\r\n\r\nCan I use Systems Management Server &#40;SMS&#41; to determine whether this update is required? \r\nThe following table provides the SMS detection summary for this security update.\r\nSoftware\tSMS 2.0\tSMS 2003\r\n\r\nMicrosoft Windows 2000 Service Pack 4\r\n\t\r\n\r\nYes\r\n\t\r\n\r\nYes\r\n\r\nMicrosoft Windows XP Service Pack 2\r\n\t\r\n\r\nYes\r\n\t\r\n\r\nYes\r\n\r\nMicrosoft Windows XP Professional x64 Edition and Microsoft Windows XP Professional x64 Edition Service Pack 2\r\n\t\r\n\r\nNo\r\n\t\r\n\r\nYes\r\n\r\nMicrosoft Windows Server 2003 Service Pack 1 and Microsoft Windows Server 2003 Service Pack 2\r\n\t\r\n\r\nYes\r\n\t\r\n\r\nYes\r\n\r\nMicrosoft Windows Server 2003 with Service Pack 1 for Itanium-based Systems and Microsoft Windows Server 2003 with Service Pack 1 for Itanium-based Systems\r\n\t\r\n\r\nNo\r\n\t\r\n\r\nYes\r\n\r\nMicrosoft Windows Server 2003 x64 Edition with Service Pack 1 and Microsoft Windows Server 2003 x64 Edition Service Pack 2\r\n\t\r\n\r\nNo\r\n\t\r\n\r\nYes\r\n\r\nSMS 2.0 and SMS 2003 Software Update Services &#40;SUS&#41; Feature Pack can use MBSA 1.2.1 for detection and therefore have the same limitation that is listed earlier in this bulletin related to programs that MBSA 1.2.1 does not detect.\r\n\r\nFor SMS 2.0, the SMS SUS Feature Pack, which includes the Security Update Inventory Tool &#40;SUIT&#41;, can be used by SMS to detect security updates. SMS SUIT uses the MBSA 1.2.1 engine for detection. For more information about SUIT, visit the following Microsoft Web site. For more information about the limitations of SUIT, see Microsoft Knowledge Base Article 306460. The SMS SUS Feature Pack also includes the Microsoft Office Inventory Tool to detect required updates for Microsoft Office applications.\r\n\r\nFor SMS 2003, the SMS 2003 Inventory Tool for Microsoft Updates &#40;ITMU&#41; can be used by SMS 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 ITMU, visit the following Microsoft Web site. SMS 2003 can also use the Microsoft Office Inventory Tool to detect required updates for Microsoft Office applications.\r\n\r\nFor more information about SMS, visit the SMS Web site.\r\n\r\nFor more detailed information, see Microsoft Knowledge Base Article 910723: Summary list of monthly detection and deployment guidance articles.\r\n\r\nI am using an older version of the software discussed in this security bulletin; what should I do? \r\nThe affected software listed in this bulletin has been tested to determine whether the versions are affected. Other versions are past their support life cycle. To determine the support life cycle for your product and version, visit the Microsoft Support Lifecycle Web site.\r\n\r\nIt should be a priority for customers who have older versions of the software 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 custom support for older software 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. For more information, see the Windows Operating System Product Support Lifecycle FAQ.\r\nTop of sectionTop of section\r\n\t\r\nVulnerability Details\r\n\t\r\nCOM Object Instantiation Memory Corruption Vulnerability - CVE-2007-0942:\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 specially crafted Web page that could potentially allow remote code execution if a user visited the Web page. 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-2007-0942:\r\n\u2022\t\r\n\r\nIn a Web-based attack scenario, an attacker could host a Web site that contains a Web page that is used to exploit this vulnerability In addition, Web sites that accept or host user-provided content, or compromised Web sites and advertisement servers could contain specially crafted content that could exploit this vulnerability. Instead, an attacker would have to convince users to visit the Web site, typically by getting them to click a link in an e-mail message or Instant Messenger message that takes users to the attacker&#39;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, all supported versions of Microsoft Outlook and Microsoft Outlook Express open HTML e-mail messages in the Restricted sites zone. The Restricted sites zone helps reduce the number of successful attacks that exploit this vulnerability by preventing Active Scripting and ActiveX controls from being used when reading HTML e-mail. However, if a user clicks on a link within an e-mail, they could still be vulnerable to this issue through the Web-based attack scenario.\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 sets the security level for the Internet zone to High. This is a mitigating factor for Web sites that have not been added to Internet Explorer Trusted sites zone. See the FAQ subsection of this vulnerability section for more information about Internet Explorer Enhanced Security Configuration.\r\n\u2022\t\r\n\r\nCOM objects not intended to be instantiated in Internet Explorer are not included in the default allow-list for ActiveX controls in Windows Internet Explorer 7. Customers who are running Windows Internet Explorer 7 with default settings are therefore not at risk unless these COM objects have been activated through the ActiveX opt-in feature in the Internet Zone. Customers who are upgrading to Windows Internet Explorer 7 and have enabled these COM objects in previous versions of Internet Explorer will have them enabled in Windows Internet Explorer 7. For more information on the ActiveX Opt-in feature and how to add ActiveX controls to the pre-approved list, see the product documentation.\r\nTop of sectionTop of section\r\n\t\r\nWorkarounds for COM Object Instantiation Memory Corruption Vulnerability - CVE-2007-0942:\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\nAdd sites that you trust to the Internet Explorer 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 the Internet Explorer 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 &#40;https:&#41; 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 &quot;*.windowsupdate.microsoft.com&quot; and \u201c*.update.microsoft.com\u201d &#40;without the quotation marks&#41;. These are the sites that will host the update, and it requires an ActiveX Control to install the update.\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 &quot;Add sites that you trust to the Internet Explorer Trusted sites zone\u201d.\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\nAdd sites that you trust to the Internet Explorer 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 the Internet Explorer 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 &#40;https:&#41; 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 &quot;*.windowsupdate.microsoft.com&quot; and \u201c*.update.microsoft.com\u201d &#40;without the quotation marks&#41;. These are the sites that will host the update, and it requires an ActiveX Control to install the update.\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 &quot;Add sites that you trust to the Internet Explorer Trusted sites zone\u201d.\r\n\u2022\t\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\nNote The Class Identifiers and corresponding files where the COM objects are contained are documented under \u201cWhat does the update do?\u201d in the \u201cFAQ for COM Object Instantiation Memory Corruption Vulnerability - CVE-2007-0942\u201d section. Replace {XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX} below with the Class Identifiers found in this section.\r\n\r\nTo set the kill bit for a CLSID with a value of {XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}, 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\nWindows Registry Editor Version 5.00\r\n\r\n[HKEY_LOCAL_MACHINE&#92;SOFTWARE&#92;Microsoft&#92;Internet Explorer&#92;ActiveX Compatibility&#92;{ XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX }]\r\n&quot;Compatibility Flags&quot;=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-2007-0942:\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.\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 specially crafted Web site that is designed to exploit this vulnerability through Internet Explorer and then convince 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 specially crafted 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 convince 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&#39;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 be logged on and visit 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\nI am running Windows Internet Explorer 7. Does this mitigate this vulnerability? \r\nYes. Customers who are running Windows Internet Explorer 7 with default settings, are not at risk unless these COM objects have been activated through the ActiveX opt-in feature in the Internet Zone. Customers who are upgrading to Windows Internet Explorer 7 and have enabled these COM objects in previous versions of Internet Explorer will have them enabled in Windows Internet Explorer 7. For more information on the ActiveX Opt-in feature and how to add ActiveX controls to the pre-approved list, see the product documentation.\r\n\r\nWindows Internet Explorer 7 in Windows Vista is not affected by this vulnerability.\r\n\r\nWhat is the ActiveX opt-in feature in Windows Internet Explorer 7? \r\nWindows Internet Explorer 7 includes an ActiveX opt-in feature, which means that nearly all pre-installed ActiveX controls are off by default. Users are prompted by the Information Bar before they can instantiate a previously installed ActiveX control that has not yet been used on the Internet. This enables a user to permit or deny access on a control-by-control basis. For more information about this and other new features, see the Windows Internet Explorer 7 features page.\r\n\r\nI am running Internet Explorer on Windows Server 2003. Does this mitigate this vulnerability? \r\nYes. By default, Internet Explorer on Windows Server 2003 runs in a restricted mode that is known as Enhanced Security Configuration. This mode sets the security level for the Internet zone to High. This is a mitigating factor for Web sites that have not been added to Internet Explorer Trusted sites zone. See the next FAQ in this section for more information about Internet Explorer Enhanced Security Configuration.\r\n\r\nWhat is 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 administrator downloading and running malicious Web content on a server. Internet Explorer Enhanced Security Configuration reduces this threat by modifying numerous security-related settings, including Security and Advanced tab settings in Internet Options. Some of the key modifications include:\r\n\u2022\t\r\n\r\nSecurity level for the Internet zone is set to High. This setting disables scripts, ActiveX components, Microsoft virtual machine &#40;Microsoft VM&#41; HTML content, 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 &#40;UNC&#41; 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\nFor more information regarding Internet Explorer Enhanced Security Configuration, please consult the Managing Internet Explorer Enhanced Security Configuration guide, which can be found at 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 &#40;CLSIDs&#41; 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 files where the COM objects are contained are as follows:\r\nClass Identifier\tFile\r\n\r\nBE4191FB-59EF-4825-AEFC-109727951E42\r\n\t\r\n\r\nchtskdic.dll\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-2007-0942.\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\nUninitialized Memory Corruption Vulnerability - CVE-2007-0944:\r\n\r\nA remote code execution vulnerability exists in the way Internet Explorer accessing a object when it is not initiated or already deleted. An attacker could exploit the vulnerability by constructing a specially crafted Web page. If a user viewed the Web page, the vulnerability could allow remote code execution. An attacker who successfully exploited this vulnerability could take complete control of an affected system.\r\n\t\r\nMitigating Factors for Uninitialized Memory Corruption Vulnerability - CVE-2007-0944:\r\n\u2022\t\r\n\r\nIn a Web-based attack scenario, an attacker could host a Web site that contains a Web page that is used to exploit this vulnerability. In addition, compromised Web sites and Web sites that accept or host user-provided content or advertisements could contain specially crafted 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 convince users to visit the Web site, typically by getting them to click a link in an e-mail message or Instant Messenger message that takes users to the attacker&#39;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, the user could still be vulnerable to this issue through the Web-based attack scenario.\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 sets the security level for the Internet zone to High. This is a mitigating factor for Web sites that have not been added to Internet Explorer Trusted sites zone. 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 Uninitialized Memory Corruption Vulnerability - CVE-2007-0944:\r\n\r\nMicrosoft has tested the following workarounds. Although 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\nAdd sites that you trust to the Internet Explorer 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 the Internet Explorer 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 &#40;https:&#41; 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 &quot;*.windowsupdate.microsoft.com&quot; and \u201c*.update.microsoft.com\u201d &#40;without the quotation marks&#41;. These are the sites that will host the update, and it requires an ActiveX Control to install the update.\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 &quot;Add sites that you trust to the Internet Explorer Trusted sites zone\u201d.\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\nAdd sites that you trust to the Internet Explorer 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 the Internet Explorer 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 &#40;https:&#41; 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 &quot;*.windowsupdate.microsoft.com&quot; and \u201c*.update.microsoft.com\u201d &#40;without the quotation marks&#41;. These are the sites that will host the update, and it requires an ActiveX Control to install the update.\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 &quot;Add sites that you trust to the Internet Explorer Trusted sites zone\u201d.\r\nTop of sectionTop of section\r\n\t\r\nFAQ for Uninitialized Memory Corruption Vulnerability - CVE-2007-0944:\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.\r\n\r\nWhat causes the vulnerability? \r\nInternet Explorer attempts to access an object which has been deleted. As a result, memory may be corrupted in such a way that an attacker could execute arbitrary code in the context of the logged-in user.\r\n\r\nWhat might an attacker use the vulnerability to do? \r\nAn attacker who successfully exploited these vulnerabilities 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 specially crafted Web site that is designed to exploit these vulnerabilities through Internet Explorer and then convince a user to visit 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 specially crafted content that could exploit these vulnerabilities. In all cases, however, an attacker would have no way to force users to visit these Web sites. Instead, an attacker would have to convince users to visit the Web site, typically by getting them to click a link in an e-mail message or in an Instant Messenger message that takes users to the attacker&#39;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 be logged on and visit 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 these vulnerabilities.\r\n\r\nI am running Internet Explorer on Windows Server 2003. Does this mitigate these vulnerabilities? \r\nYes. By default, Internet Explorer on Windows Server 2003 runs in a restricted mode that is known as Enhanced Security Configuration. This mode sets the security level for the Internet zone to High. This is a mitigating factor for Web sites that have not been added to Internet Explorer Trusted sites zone.\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 specially crafted 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 &#40;MSJVM&#41;, 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 &#40;UNC&#41; 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\nFor more information regarding Internet Explorer Enhanced Security Configuration, see the guide, Managing Internet Explorer Enhanced Security Configuration, at the following Web site.\r\n\r\nI am running Windows Internet Explorer 7. Does this mitigate this vulnerability? \r\nYes. Customers who are running Windows Internet Explorer 7 with default settings, are not at risk unless these COM objects have been activated through the ActiveX opt-in feature in the Internet Zone. Customers who are upgrading to Windows Internet Explorer 7 and have enabled these COM objects in previous versions of Internet Explorer will have them enabled in Windows Internet Explorer 7. For more information on the ActiveX Opt-in feature and how to add ActiveX controls to the pre-approved list, see the product documentation.\r\n\r\nWindows Internet Explorer 7 in Windows Vista is not affected by this vulnerability.\r\n\r\nWhat is the ActiveX opt-in feature in Windows Internet Explorer 7? \r\nWindows Internet Explorer 7 includes an ActiveX opt-in feature, which means that nearly all pre-installed ActiveX controls are off by default. Users are prompted by the Information Bar before they can instantiate a previously installed ActiveX control that has not yet been used on the Internet. This enables a user to permit or deny access on a control-by-control basis. For more information about this and other new features, see the Windows Internet Explorer 7 features page.\r\n\r\nWhat does the update do? \r\nThe update removes the vulnerability by modifying the way that Internet Explorer handles errors when calls are made to objects that are no longer initialized.\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\nProperty Memory Corruption Vulnerability - CVE-2007-0945:\r\n\r\nA remote code execution vulnerability exists in the way Internet Explorer handles a property method. An attacker could exploit the vulnerability by constructing a specially crafted Web page that could potentially allow remote code execution if a user viewed the Web page. An attacker who successfully exploited this vulnerability could take complete control of an affected system.\r\n\t\r\nMitigating Factors for Property Type Memory Corruption Vulnerability - CVE-2007-0945:\r\n\u2022\t\r\n\r\nIn a Web-based attack scenario, an attacker could host a Web site that contains a Web page that is used to exploit this vulnerability. In addition, compromised Web sites and Web sites that accept or host user-provided content or advertisements could contain specially crafted 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 convince users to visit the Web site, typically by getting them to click a link in an e-mail message or instant messenger message that takes users to the attacker&#39;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, all supported versions of Microsoft Outlook and Microsoft Outlook Express open HTML e-mail messages in the Restricted sites zone. The Restricted sites zone helps reduce the number of successful attacks that exploit this vulnerability by preventing Active Scripting and ActiveX controls from being used when reading HTML e-mail. However, if a user clicks on a link within an e-mail they could still be vulnerable to this issue through the Web-based attack scenario.\r\n\r\nIt cannot be ruled out that this vulnerability could be used in an exploit without Active Scripting. However, using Active Scripting significantly increases the chances of a successful exploit. As a result, this vulnerability has been given a severity rating of Critical on Windows Server 2003.\r\n\u2022\t\r\n\r\nMicrosoft Internet Explorer 5.01 Service Pack 4 on Windows 2000 Service Pack 4 is not affected by this vulnerability.\r\nTop of sectionTop of section\r\n\t\r\nWorkarounds for Property Memory Corruption Vulnerability - CVE-2007-0945:\r\n\r\nMicrosoft has tested the following workarounds. Although 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 Promptor 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 Promptor 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\nAdd sites that you trust to the Internet Explorer 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 the Internet Explorer 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 &#40;https:&#41; 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 &quot;*.windowsupdate.microsoft.com&quot; and \u201c*.update.microsoft.com\u201d &#40;without the quotation marks&#41;. These are the sites that will host the update, and it requires an ActiveX Control to install the update.\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 &quot;Add sites that you trust to the Internet Explorer Trusted sites zone\u201d.\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\nAdd sites that you trust to the Internet Explorer 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 the Internet Explorer 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 &#40;https:&#41; 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 &quot;*.windowsupdate.microsoft.com&quot; and \u201c*.update.microsoft.com\u201d &#40;without the quotation marks&#41;. These are the sites that will host the update, and it requires an ActiveX Control to install the update.\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 &quot;Add sites that you trust to the Internet Explorer Trusted sites zone\u201d\r\nTop of sectionTop of section\r\n\t\r\nFAQ for Property Memory Corruption Vulnerability - CVE-2007-0945:\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.\r\n\r\nWhat causes the vulnerability?\r\nWhen Internet Explorer calls the property method it may corrupt 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 these vulnerabilities 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 specially crafted Web site that is designed to exploit the vulnerability and then convince 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 specially crafted content that could exploit these vulnerabilities. In all cases, however, an attacker would have no way to force users to visit these Web sites. Instead, an attacker would have to convince users to visit the Web site, typically by getting them to click a link in an e-mail message or in an Instant Messenger message that takes users to the attacker&#39;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\nI am running Internet Explorer on Windows Server 2003. Does this mitigate this vulnerability? \r\nYes. By default, Internet Explorer on Windows Server 2003 runs in a restricted mode that is known as Enhanced Security Configuration. This mode sets the security level for the Internet zone to High. This is a mitigating factor for Web sites that have not been added to Internet Explorer Trusted sites zone. See the next FAQ in this section for more information about Internet Explorer Enhanced Security Configuration.\r\n\r\nNote It cannot be ruled out that this vulnerability could be used in an exploit without Active Scripting. However, using Active Scripting significantly increases the chances of a successful exploit. As a result, this vulnerability has been given a severity rating of Critical on Windows Server 2003.\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 specially crafted 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 &#40;MSJVM&#41;, 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 &#40;UNC&#41; 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\nFor more information regarding Internet Explorer Enhanced Security Configuration, see the guide, Managing Internet Explorer Enhanced Security Configuration, at 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 the property method.\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 Objects Memory Corruption Vulnerabilities - CVE-2007-0946, CVE-2007-0947:\r\n\r\nSeveral remote code execution vulnerabilities exist in Internet Explorer due to attempts to access uninitialized memory in certain situations. An attacker could exploit these vulnerabilities by constructing a specially crafted Web page. If a user viewed the Web page, these vulnerabilities could allow remote code execution. An attacker who successfully exploited these vulnerabilities could take complete control of an affected system.\r\n\t\r\nMitigating Factors for HTML Objects Memory Corruption Vulnerabilities - CVE-2007-0946, CVE-2007-0947:\r\n\u2022\t\r\n\r\nIn a Web-based attack scenario, an attacker could host a Web site that contains a Web page that is used to exploit these vulnerabilities. In addition, compromised Web sites and Web sites that accept or host user-provided content or advertisements could contain specially crafted content that could exploit these vulnerabilities. In all cases, however, an attacker would have no way to force users to visit these Web sites. Instead, an attacker would have to convince users to visit the Web site, typically by getting them to click a link in an e-mail message or Instant Messenger message that takes users to the attacker&#39;s Web site.\r\n\u2022\t\r\n\r\nAn attacker who successfully exploited these vulnerabilities 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, all supported versions of Microsoft Outlook and Microsoft Outlook Express open HTML e-mail messages in the Restricted sites zone. The Restricted sites zone helps reduce the number of successful attacks that exploit these vulnerabilities by preventing Active Scripting and ActiveX controls from being used when reading HTML e-mail. However, if a user clicks on a link within an e-mail they could still be vulnerable to this issue through the Web-based attack scenario.\r\n\r\nIt cannot be ruled out that these vulnerabilities could be used in an exploit without Active Scripting. However, using Active Scripting significantly increases the chances of a successful exploit. As a result, these vulnerabilities have been given a severity rating of Critical on Windows Server 2003.\r\nTop of sectionTop of section\r\n\t\r\nWorkarounds for HTML Objects Memory Corruption Vulnerability - CVE-2007-0946, CVE-2007-0947:\r\n\r\nMicrosoft has tested the following workarounds. Although these workarounds will not correct the underlying vulnerabilities, 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\nAdd sites that you trust to the Internet Explorer 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 the Internet Explorer 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 &#40;https:&#41; 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 &quot;*.windowsupdate.microsoft.com&quot; and \u201c*.update.microsoft.com\u201d &#40;without the quotation marks&#41;. These are the sites that will host the update, and it requires an ActiveX Control to install the update.\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 &quot;Add sites that you trust to the Internet Explorer Trusted sites zone\u201d.\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\nAdd sites that you trust to the Internet Explorer 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 the Internet Explorer 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 &#40;https:&#41; 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 &quot;*.windowsupdate.microsoft.com&quot; and \u201c*.update.microsoft.com\u201d &#40;without the quotation marks&#41;. These are the sites that will host the update, and it requires an ActiveX Control to install the update.\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 &quot;Add sites that you trust to the Internet Explorer Trusted sites zone\u201d.\r\nTop of sectionTop of section\r\n\t\r\nFAQ for HTML Objects Memory Corruption Vulnerability - CVE-2007-0946, CVE-2007-0947:\r\n\r\nWhat is the scope of the vulnerabilities? \r\nThese are remote code execution vulnerabilities. An attacker who successfully exploited these vulnerabilities could remotely take complete control of an affected system. An attacker could then install programs; view, change, or delete data.\r\n\r\nWhat causes the vulnerability? \r\nInternet Explorer attempts to access uninitialized memory. As a result, memory may be corrupted in such a way that an attacker could execute arbitrary code in the context of the logged-in user.\r\n\r\nWhat might an attacker use the vulnerability to do? \r\nAn attacker who successfully exploited these vulnerabilities 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 specially crafted Web site that is designed to exploit these vulnerabilities through Internet Explorer and then convince 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 specially crafted content that could exploit these vulnerabilities. In all cases, however, an attacker would have no way to force users to visit these Web sites. Instead, an attacker would have to convince users to visit the Web site, typically by getting them to click a link in an e-mail message or in an Instant Messenger message that takes users to the attacker&#39;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\nThese vulnerabilities require 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 these vulnerabilities.\r\n\r\nI am running Internet Explorer on Windows Server 2003. Does this mitigate these vulnerabilities? \r\nYes. By default, Internet Explorer on Windows Server 2003 runs in a restricted mode that is known as Enhanced Security Configuration. This mode sets the security level for the Internet zone to High. This is a mitigating factor for Web sites that have not been added to Internet Explorer Trusted sites zone.\r\n\r\nNote It cannot be ruled out that these vulnerabilities could be used in an exploit without Active Scripting. However, using Active Scripting significantly increases the chances of a successful exploit. As a result, this vulnerability has been given a severity rating of Critical on Windows Server 2003.\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 specially crafted 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 &#40;MSJVM&#41;, 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 &#40;UNC&#41; 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\nFor more information regarding Internet Explorer Enhanced Security Configuration, see the guide, Managing Internet Explorer Enhanced Security Configuration, at the following Web site.\r\n\r\nWhat does the update do? \r\nThe update removes the vulnerabilities by modifying the way that Internet Explorer handles the error resulting in the exploitable condition.\r\n\r\nWhen this security bulletin was issued, had this vulnerability been publicly disclosed? \r\nNo. Microsoft received information about these vulnerabilities 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 these vulnerabilities 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\nArbitrary File Rewrite Vulnerability - CVE-2007-2221:\r\n\r\nA remote code execution vulnerability exists in a media service component that was never supported in Internet Explorer. An attacker could exploit the vulnerability by constructing a specially crafted Web page that could potentially allow remote code execution if a user visited the Web page. An attacker who successfully exploited this vulnerability could take complete control of an affected system.\r\n\t\r\nMitigating Factors for Arbitrary File Rewrite Vulnerability - CVE-2007-2221:\r\n\u2022\t\r\n\r\nIn a Web-based attack scenario, an attacker could host a Web site that contains a Web page that is used to exploit this vulnerability In addition, Web sites that accept or host user-provided content, or compromised Web sites and advertisement servers could contain specially crafted content that could exploit this vulnerability. Instead, an attacker would have to convince users to visit the Web site, typically by getting them to click a link in an e-mail message or Instant Messenger message that takes users to the attacker&#39;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\nCOM objects not intended to be instantiated in Internet Explorer are not included in the default allow-list for ActiveX controls in Windows Internet Explorer 7. Customers who are running Windows Internet Explorer 7 with default settings are therefore not at risk unless these COM objects have been activated through the ActiveX opt-in feature in the Internet Zone. Customers who are upgrading to Windows Internet Explorer 7 and have enabled these COM objects in previous versions of Internet Explorer will have them enabled in Windows Internet Explorer 7. For more information on the ActiveX Opt-in feature and how to add ActiveX controls to the pre-approved list, see the product documentation.\r\nTop of sectionTop of section\r\n\t\r\nWorkarounds for Arbitrary File Rewrite Vulnerability - CVE-2007-2221:\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\nPrevent 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\nNote The Class Identifiers and corresponding files where the COM objects are contained are documented under \u201cWhat does the update do?\u201d in the \u201cFAQ for Arbitrary File Rewrite Vulnerability - CVE-2007-2221\u201d section. Replace {XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX} below with the Class Identifiers found in this section.\r\n\r\nTo set the kill bit for a CLSID with a value of {XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}, 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\nWindows Registry Editor Version 5.00\r\n\r\n[HKEY_LOCAL_MACHINE&#92;SOFTWARE&#92;Microsoft&#92;Internet Explorer&#92;ActiveX Compatibility&#92;{ XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX }]\r\n&quot;Compatibility Flags&quot;=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\n\u2022\t\r\n\r\nUninstall Windows Media Server 4.1\r\n\r\nRemove Windows Media Server 4.1 from systems that it is not intended to run on\r\n\r\nImpact of Workaround: Windows Media Server 4.1 functionality will no longer be accessible\r\nTop of sectionTop of section\r\n\t\r\nFAQ for Arbitrary File Rewrite Vulnerability - CVE-2007-2221:\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.\r\n\r\nWhat causes the vulnerability? \r\nAn arbitrary file rewrite vulnerability exist in the control named &quot;mdsauth.dll&quot; of Microsoft Windows Media Server.\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 specially crafted Web site that is designed to exploit this vulnerability through Internet Explorer and then convince 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 specially crafted 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 convince 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&#39;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 be logged on and visit 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\nThis update sets the kill bit for a list the Class Identifier &#40;CLSIDs&#41;\r\n\r\nThe Class Identifies and corresponding files are as follows:\r\nClass Identifier\tFile\r\n\r\nD4FE6227-1288-11D0-9097-00AA004254A0\r\n\t\r\n\r\nmsauth.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\nAcknowledgments\r\n\r\nMicrosoft thanks the following for working with us to help protect customers:\r\n\u2022\t\r\n\r\nTippingPoint and the Zero Day Initiative for reporting the Uninitialized Memory Corruption Vulnerability \u2013 &#40;CVE-2007-0944&#41;.\r\n\u2022\t\r\n\r\nJJ Reyes of Secunia Research for reporting the HTML Objects Memory Corruption Vulnerability \u2013 &#40;CVE-2007-0947&#41;.\r\n\u2022\t\r\n\r\ncocoruder of Fortinet Security Research for reporting the Arbitrary File Rewrite Vulnerability \u2013 &#40;CVE-2007-2221&#41;.\r\n\r\n\r\nDisclaimer:\r\n\r\nThe information provided in the Microsoft Knowledge Base is provided &quot;as is&quot; 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 &#40;May 8, 2007&#41;: Bulletin published.", "edition": 1, "cvss3": {}, "published": "2007-05-08T00:00:00", "title": "Microsoft Security Bulletin MS07-027 Cumulative Security Update for Internet Explorer &#40;931768&#41;", "type": "securityvulns", "bulletinFamily": "software", "cvss2": {}, "cvelist": ["CVE-2007-0947", "CVE-2007-2221", "CVE-2007-0945", "CVE-2007-0946", "CVE-2007-0944", "CVE-2007-0942"], "modified": "2007-05-08T00:00:00", "id": "SECURITYVULNS:DOC:16962", "href": "https://vulners.com/securityvulns/SECURITYVULNS:DOC:16962", "cvss": {"score": 9.3, "vector": "AV:NETWORK/AC:MEDIUM/Au:NONE/C:COMPLETE/I:COMPLETE/A:COMPLETE/"}}, {"lastseen": "2018-08-31T11:10:22", "bulletinFamily": "software", "cvelist": ["CVE-2007-0944"], "description": "ZDI-07-027: Microsoft Internet Explorer Table Column Deletion Memory\r\n Corruption Vulnerability\r\nhttp://www.zerodayinitiative.com/advisories/ZDI-07-027.html\r\nMay 8, 2007\r\n\r\n-- CVE ID:\r\nCVE-2007-0944\r\n\r\n-- Affected Vendor:\r\nMicrosoft\r\n\r\n-- Affected Products:\r\nInternet Explorer 5\r\nInternet Explorer 6\r\n\r\n-- TippingPoint&#40;TM&#41; IPS Customer Protection:\r\nTippingPoint IPS customers have been protected against this\r\nvulnerability since May 8, 2007 by Digital Vaccine protection\r\nfilter ID 5236. For further product information on the TippingPoint IPS:\r\n\r\n http://www.tippingpoint.com \r\n\r\n-- Vulnerability Details:\r\nThis vulnerability allows remote attackers to execute arbitrary code on\r\nvulnerable installations of Microsoft Internet Explorer. User\r\ninteraction is required to exploit this vulnerability in that the\r\ntarget must visit a malicious page.\r\n\r\nThe specific flaw exists in the CTableCol::OnPropertyChange&#40;&#41; method.\r\nWhen a named table row in HTML contains a named table column, then\r\ncalls the deleteCell&#40;&#41; JavaScript method, any property of the table\r\ncolumn, existing or not, accessed after the deletion takes place will\r\ntrigger an exploitable memory corruption.\r\n\r\n-- Vendor Response:\r\nMicrosoft has issued an update to correct this vulnerability. More\r\ndetails can be found at:\r\n\r\n http://www.microsoft.com/technet/security/bulletin/ms07-027.mspx\r\n\r\n-- Disclosure Timeline:\r\n2006.10.03 - Vulnerability reported to vendor\r\n2007.05.08 - Digital Vaccine released to TippingPoint customers\r\n2007.05.08 - Coordinated public release of advisory\r\n\r\n-- Credit:\r\nThis vulnerability was discovered by an anonymous researcher.\r\n\r\n-- About the Zero Day Initiative &#40;ZDI&#41;:\r\nEstablished by TippingPoint, a division of 3Com, The Zero Day Initiative\r\n&#40;ZDI&#41; represents a best-of-breed model for rewarding security\r\nresearchers for responsibly disclosing discovered vulnerabilities.\r\n\r\nResearchers interested in getting paid for their security research\r\nthrough the ZDI can find more information and sign-up at:\r\n\r\n http://www.zerodayinitiative.com\r\n\r\nThe ZDI is unique in how the acquired vulnerability information is used.\r\n3Com does not re-sell the vulnerability details or any exploit code.\r\nInstead, upon notifying the affected product vendor, 3Com provides its\r\ncustomers with zero day protection through its intrusion prevention\r\ntechnology. Explicit details regarding the specifics of the\r\nvulnerability are not exposed to any parties until an official vendor\r\npatch is publicly available. Furthermore, with the altruistic aim of\r\nhelping to secure a broader user base, 3Com provides this vulnerability\r\ninformation confidentially to security vendors &#40;including competitors&#41;\r\nwho have a vulnerability protection or mitigation product.", "edition": 1, "modified": "2007-05-08T00:00:00", "published": "2007-05-08T00:00:00", "id": "SECURITYVULNS:DOC:16964", "href": "https://vulners.com/securityvulns/SECURITYVULNS:DOC:16964", "title": "ZDI-07-027: Microsoft Internet Explorer Table Column Deletion Memory Corruption Vulnerability", "type": "securityvulns", "cvss": {"score": 9.3, "vector": "AV:NETWORK/AC:MEDIUM/Au:NONE/C:COMPLETE/I:COMPLETE/A:COMPLETE/"}}, {"lastseen": "2018-08-31T11:10:22", "description": "====================================================================== \r\n\r\n Secunia Research 09/05/2007 \r\n\r\n - Internet Explorer HTML Objects Memory Corruption Vulnerability -\r\n\r\n====================================================================== \r\nTable of Contents\r\n\r\nAffected Software....................................................1\r\nSeverity.............................................................2\r\nVendor&#39;s Description of Software.....................................3\r\nDescription of Vulnerability.........................................4\r\nSolution.............................................................5\r\nTime Table...........................................................6\r\nCredits..............................................................7\r\nReferences...........................................................8\r\nAbout Secunia........................................................9\r\nVerification........................................................10\r\n\r\n====================================================================== \r\n1&#41; Affected Software \r\n\r\n* Microsoft Internet Explorer 7\r\n\r\n====================================================================== \r\n2&#41; Severity \r\n\r\nRating: Moderately Critical\r\nImpact: System Access\r\nWhere: Remote\r\n\r\n====================================================================== \r\n3&#41; Vendor&#39;s Description of Software \r\n\r\nInternet Explorer 7 provides improved navigation through tabbed\r\nbrowsing, web search right from the toolbar, advanced printing, easy\r\ndiscovery, reading and subscription to RSS feeds, and much more.\r\n\r\nhttp://www.microsoft.com/windows/products/winfamily/ie/default.mspx\r\n\r\n====================================================================== \r\n4&#41; Description of Vulnerability\r\n\r\nSecunia Research has discovered a vulnerability in Internet Explorer, \r\nwhich can be exploited by malicious people to compromise a vulnerable\r\nsystem.\r\n\r\nThe vulnerability is caused due to an error in the handling of HTML\r\nobjects as a CMarkup object is used in certain cases after it has been\r\nfreed. This can be exploited to corrupt memory via a specially crafted\r\nweb page.\r\n\r\nSuccessful exploitation allows execution of arbitrary code.\r\n\r\n====================================================================== \r\n5&#41; Solution \r\n\r\nApply patches &#40;see the Microsoft security bulletin for details&#41;.\r\n\r\n====================================================================== \r\n6&#41; Time Table \r\n\r\n18/01/2007 - Vendor notified.\r\n19/01/2007 - Vendor response.\r\n09/05/2007 - Public disclosure.\r\n\r\n====================================================================== \r\n7&#41; Credits \r\n\r\nDiscovered by JJ Reyes, Secunia Research.\r\n\r\n====================================================================== \r\n8&#41; References\r\n\r\nMS07-027 &#40;KB931768&#41;:\r\nhttp://www.microsoft.com/technet/security/Bulletin/MS07-027.mspx\r\n\r\nThe Common Vulnerabilities and Exposures &#40;CVE&#41; project has assigned \r\nCVE-2007-0947 for the vulnerability.\r\n\r\n====================================================================== \r\n9&#41; About Secunia\r\n\r\nSecunia offers vulnerability management solutions to corporate\r\ncustomers with verified and reliable vulnerability intelligence\r\nrelevant to their specific system configuration:\r\n\r\nhttp://corporate.secunia.com/\r\n\r\nSecunia also provides a publicly accessible and comprehensive advisory\r\ndatabase as a service to the security community and private \r\nindividuals, who are interested in or concerned about IT-security.\r\n\r\nhttp://secunia.com/\r\n\r\nSecunia believes that it is important to support the community and to\r\ndo active vulnerability research in order to aid improving the \r\nsecurity and reliability of software in general:\r\n\r\nhttp://corporate.secunia.com/secunia_research/33/\r\n\r\nSecunia regularly hires new skilled team members. Check the URL below\r\nto see currently vacant positions:\r\n\r\nhttp://secunia.com/secunia_vacancies/\r\n\r\nSecunia offers a FREE mailing list called Secunia Security Advisories:\r\n\r\nhttp://secunia.com/secunia_security_advisories/ \r\n\r\n====================================================================== \r\n10&#41; Verification \r\n\r\nPlease verify this advisory by visiting the Secunia website:\r\nhttp://secunia.com/secunia_research/2007-36/\r\n\r\nComplete list of vulnerability reports published by Secunia Research:\r\nhttp://secunia.com/secunia_research/\r\n\r\n======================================================================\r\n\r\n\r\n\r\n_______________________________________________\r\nFull-Disclosure - We believe in it.\r\nCharter: http://lists.grok.org.uk/full-disclosure-charter.html\r\nHosted and sponsored by Secunia - http://secunia.com/", "edition": 1, "cvss3": {}, "published": "2007-05-10T00:00:00", "title": "[Full-disclosure] Secunia Research: Internet Explorer HTML Objects Memory Corruption Vulnerability", "type": "securityvulns", "bulletinFamily": "software", "cvss2": {}, "cvelist": ["CVE-2007-0947"], "modified": "2007-05-10T00:00:00", "id": "SECURITYVULNS:DOC:16980", "href": "https://vulners.com/securityvulns/SECURITYVULNS:DOC:16980", "cvss": {"score": 9.3, "vector": "AV:NETWORK/AC:MEDIUM/Au:NONE/C:COMPLETE/I:COMPLETE/A:COMPLETE/"}}], "nessus": [{"lastseen": "2022-06-16T14:51:22", "description": "The remote host is missing the IE cumulative security update 931768.\n\nThe remote version of IE is vulnerable to several flaws that could allow an attacker to execute arbitrary code on the remote host.", "cvss3": {"score": null, "vector": null}, "published": "2007-05-08T00:00:00", "type": "nessus", "title": "MS07-027: Cumulative Security Update for Internet Explorer (931768)", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2007-0323", "CVE-2007-0942", "CVE-2007-0944", "CVE-2007-0945", "CVE-2007-0946", "CVE-2007-0947", 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(!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);\n\n\nvuln = 0;\n\n\nif (activex_init() != ACX_OK) exit(1, \"Could not initialize the ActiveX checks.\");\n\n# Check for controls for which the kill bit was set.\n#\n# nb: we'll collect info about missing kill bits now but report\n# them later, if Mshtml.dll appears to have been patched.\ninfo = \"\";\n\nclsids = make_list(\n \"{1D95A7C7-3282-4DB7-9A48-7C39CE152A19}\",\n \"{D9998BD0-7957-11D2-8FED-00606730D3AA}\"\n);\n\nforeach clsid (clsids)\n{\n if (activex_get_killbit(clsid:clsid) == 0)\n {\n info += ' ' + clsid + '\\n';\n if (!thorough_tests) break;\n }\n}\nactivex_end();\n\n\n# Check for patched Mshtml.dll.\nif (\n hotfix_is_vulnerable(os:\"5.2\", sp:1, file:\"Mshtml.dll\", version:\"6.0.3790.2885\", dir:\"\\system32\", bulletin:bulletin, kb:kb) ||\n hotfix_is_vulnerable(os:\"5.2\", sp:2, file:\"Mshtml.dll\", version:\"6.0.3790.4026\", dir:\"\\system32\", bulletin:bulletin, kb:kb) ||\n hotfix_is_vulnerable(os:\"5.2\", file:\"Mshtml.dll\", version:\"7.0.6000.16441\", min_version:\"7.0.0.0\", dir:\"\\system32\", bulletin:bulletin, kb:kb) ||\n hotfix_is_vulnerable(os:\"5.2\", file:\"Mshtml.dll\", version:\"7.0.6000.20544\", min_version:\"7.0.6000.20000\", dir:\"\\system32\", bulletin:bulletin, kb:kb) ||\n\n hotfix_is_vulnerable(os:\"5.1\", sp:2, file:\"Mshtml.dll\", version:\"6.0.2800.1593\", dir:\"\\system32\", bulletin:bulletin, kb:kb) ||\n hotfix_is_vulnerable(os:\"5.1\", sp:2, file:\"Mshtml.dll\", version:\"7.0.6000.16441\", min_version:\"7.0.0.0\", dir:\"\\system32\", bulletin:bulletin, kb:kb) ||\n\n hotfix_is_vulnerable(os:\"5.0\", file:\"Mshtml.dll\", version:\"6.0.2800.1593\", min_version:\"6.0.0.0\", dir:\"\\system32\", bulletin:bulletin, kb:kb) ||\n hotfix_is_vulnerable(os:\"5.0\", file:\"Mshtml.dll\", version:\"5.0.3850.1900\", dir:\"\\system32\", bulletin:bulletin, kb:kb)\n) vuln++;\n\n\n# Report if any of the kill bits are unset.\nif (info)\n{\n vuln++;\n set_kb_item(name:\"SMB/Missing/\"+bulletin, value:TRUE);\n\n if (report_verbosity > 0)\n {\n if (max_index(split(info)) > 1) s = \"s\";\n else s = \"\";\n\n report = string(\n \"\\n\",\n \"The kill bit has not been set for the following control\", s, \" :\\n\",\n \"\\n\",\n info\n );\n\n if (!thorough_tests)\n {\n report = string(\n report,\n \"\\n\",\n \"Note that Nessus did not check whether there were other kill bits\\n\",\n \"that have not been set because the 'Perofrm thorough tests' setting\\n\",\n \"was not enabled when this scan was run.\\n\"\n );\n }\n hotfix_add_report(report, bulletin:bulletin, kb:kb);\n }\n else hotfix_add_report(bulletin:bulletin, kb:kb);\n}\n\n\nif (vuln)\n{\n set_kb_item(name:\"SMB/Missing/\"+bulletin, value:TRUE);\n hotfix_security_hole();\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"}}], "cve": [{"lastseen": "2022-03-23T11:46:19", "description": "Unspecified vulnerability in the CTableCol::OnPropertyChange method in Microsoft Internet Explorer 5.01 SP4 on Windows 2000 SP4; 6 SP1 on Windows 2000 SP4; and 6 on Windows XP SP2, or Windows Server 2003 SP1 or SP2 allows remote attackers to execute arbitrary code by calling deleteCell on a named table row in a named table column, then accessing the column, which causes Internet Explorer to access previously deleted objects, aka the \"Uninitialized Memory Corruption Vulnerability.\"", "cvss3": {}, "published": "2007-05-08T23:19:00", "type": "cve", "title": "CVE-2007-0944", "cwe": ["NVD-CWE-Other"], "bulletinFamily": "NVD", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": true, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2007-0944"], "modified": "2021-07-23T12:19:00", "cpe": ["cpe:/a:microsoft:ie:6.0", "cpe:/a:microsoft:internet_explorer:5.01"], "id": "CVE-2007-0944", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2007-0944", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}, "cpe23": ["cpe:2.3:a:microsoft:internet_explorer:5.01:sp4:*:*:*:*:*:*", "cpe:2.3:a:microsoft:ie:6.0:sp1:*:*:*:*:*:*"]}, {"lastseen": "2022-03-23T11:46:18", "description": "Microsoft Internet Explorer 5.01 SP4 on Windows 2000 SP4; 6 SP1 on Windows 2000 SP4; 6 and 7 on Windows XP SP2, or Windows Server 2003 SP1 or SP2; and possibly 7 on Windows Vista does not properly \"instantiate certain COM objects as ActiveX controls,\" which allows remote attackers to execute arbitrary code via a crafted COM object from chtskdic.dll.", "cvss3": {}, "published": "2007-05-08T23:19:00", "type": "cve", "title": "CVE-2007-0942", "cwe": ["NVD-CWE-Other"], "bulletinFamily": "NVD", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": true, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2007-0942"], "modified": "2021-07-23T15:05:00", "cpe": ["cpe:/a:microsoft:internet_explorer:5.0.1", "cpe:/a:microsoft:internet_explorer:7.0", "cpe:/a:microsoft:internet_explorer:6.0", "cpe:/a:microsoft:ie:6.0"], "id": "CVE-2007-0942", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2007-0942", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}, "cpe23": ["cpe:2.3:a:microsoft:ie:6.0:sp1:*:*:*:*:*:*", "cpe:2.3:a:microsoft:internet_explorer:6.0:*:*:*:*:*:*:*", "cpe:2.3:a:microsoft:internet_explorer:5.0.1:sp4:*:*:*:*:*:*", "cpe:2.3:a:microsoft:internet_explorer:7.0:*:*:*:*:*:*:*"]}, {"lastseen": "2022-03-23T12:09:53", "description": "Unspecified vulnerability in the mdsauth.dll COM object in Microsoft Windows Media Server in the Microsoft Internet Explorer 5.01 SP4 on Windows 2000 SP4; 6 SP1 on Windows 2000 SP4; 6 and 7 on Windows XP SP2, or Windows Server 2003 SP1 or SP2; or 7 on Windows Vista allows remote attackers to overwrite arbitrary files via unspecified vectors, aka the \"Arbitrary File Rewrite Vulnerability.\"", "cvss3": {}, "published": "2007-05-08T23:19:00", "type": "cve", "title": "CVE-2007-2221", "cwe": ["NVD-CWE-Other"], "bulletinFamily": "NVD", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2007-2221"], "modified": "2021-07-23T15:05:00", "cpe": ["cpe:/a:microsoft:internet_explorer:6", "cpe:/a:microsoft:internet_explorer:7.0", "cpe:/a:microsoft:internet_explorer:6.0", "cpe:/a:microsoft:internet_explorer:5.01"], "id": "CVE-2007-2221", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2007-2221", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}, "cpe23": ["cpe:2.3:a:microsoft:internet_explorer:5.01:sp4:*:*:*:*:*:*", "cpe:2.3:a:microsoft:internet_explorer:6.0:*:*:*:*:*:*:*", "cpe:2.3:a:microsoft:internet_explorer:7.0:*:*:*:*:*:*:*", "cpe:2.3:a:microsoft:internet_explorer:6:sp1:*:*:*:*:*:*"]}, {"lastseen": "2022-03-23T11:46:20", "description": "Microsoft Internet Explorer 6 SP1 on Windows 2000 SP4; 6 and 7 on Windows XP SP2, or Windows Server 2003 SP1 or SP2; and 7 on Windows Vista allows remote attackers to execute arbitrary code via certain property methods that may trigger memory corruption, aka \"Property Memory Corruption Vulnerability.\"", "cvss3": {}, "published": "2007-05-08T23:19:00", "type": "cve", "title": "CVE-2007-0945", "cwe": ["NVD-CWE-Other"], "bulletinFamily": "NVD", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": true, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2007-0945"], "modified": "2021-07-23T15:05:00", "cpe": ["cpe:/a:microsoft:internet_explorer:6", "cpe:/a:microsoft:internet_explorer:7.0", "cpe:/a:microsoft:internet_explorer:6.0"], "id": "CVE-2007-0945", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2007-0945", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}, "cpe23": ["cpe:2.3:a:microsoft:internet_explorer:7.0:*:*:*:*:*:*:*", "cpe:2.3:a:microsoft:internet_explorer:6.0:*:*:*:*:*:*:*", "cpe:2.3:a:microsoft:internet_explorer:6:sp1:*:*:*:*:*:*"]}, {"lastseen": "2022-03-23T11:46:22", "description": "Use-after-free vulnerability in Microsoft Internet Explorer 7 on Windows XP SP2, Windows Server 2003 SP1 or SP2, or Windows Vista allows remote attackers to execute arbitrary code via crafted HTML objects, resulting in accessing deallocated memory of CMarkup objects, aka the second of two \"HTML Objects Memory Corruption Vulnerabilities\" and a different issue than CVE-2007-0946.", "cvss3": {}, "published": "2007-05-08T23:19:00", "type": "cve", "title": "CVE-2007-0947", "cwe": ["CWE-399"], "bulletinFamily": "NVD", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": true, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2007-0946", "CVE-2007-0947"], "modified": "2021-07-23T15:05:00", "cpe": ["cpe:/a:microsoft:internet_explorer:6", "cpe:/a:microsoft:internet_explorer:7.0"], "id": "CVE-2007-0947", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2007-0947", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}, "cpe23": ["cpe:2.3:a:microsoft:internet_explorer:7.0:*:*:*:*:*:*:*", "cpe:2.3:a:microsoft:internet_explorer:6:*:*:*:*:*:*:*"]}, {"lastseen": "2022-03-23T11:46:22", "description": "Unspecified vulnerability in Microsoft Internet Explorer 7 on Windows XP SP2, Windows Server 2003 SP1 or SP2, or Windows Vista allows remote attackers to execute arbitrary code via crafted HTML objects, which results in memory corruption, aka the first of two \"HTML Objects Memory Corruption Vulnerabilities\" and a different issue than CVE-2007-0947.", "cvss3": {}, "published": "2007-05-08T23:19:00", "type": "cve", "title": "CVE-2007-0946", "cwe": ["NVD-CWE-Other"], "bulletinFamily": "NVD", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": true, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2007-0946", "CVE-2007-0947"], "modified": "2021-07-23T15:05:00", "cpe": ["cpe:/a:microsoft:internet_explorer:7.0"], "id": "CVE-2007-0946", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2007-0946", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}, "cpe23": ["cpe:2.3:a:microsoft:internet_explorer:7.0:*:*:*:*:*:*:*"]}], "zdi": [{"lastseen": "2022-01-31T22:42:08", "description": "This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Internet Explorer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page. The specific flaw exists in the CTableCol::OnPropertyChange() method. When a named table row in HTML contains a named table column, then calls the deleteCell() JavaScript method, any property of the table column, existing or not, accessed after the deletion takes place will trigger an exploitable memory corruption.", "cvss3": {}, "published": "2007-05-08T00:00:00", "type": "zdi", "title": "Microsoft Internet Explorer Table Column Deletion Memory Corruption Vulnerability", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": true, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2007-0944"], "modified": "2007-05-08T00:00:00", "id": "ZDI-07-027", "href": "https://www.zerodayinitiative.com/advisories/ZDI-07-027/", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}], "cert": [{"lastseen": "2021-09-28T17:51:37", "description": "### Overview\n\nThe Microsoft Windows Media Services NMSA Session Description Object ActiveX control fails to restrict access to dangerous methods. This vulnerability could allow a remote attacker to execute arbitrary code on an affected system.\n\n### Description\n\nMicrosoft Windows Media Services is a software package for Windows systems that provides the ability to stream Windows Media content. Included in the Windows Media Services package is an ActiveX control called NMSA Media Description Object, which is provided by the file `mdsauth.dll`. This ActiveX control, which is marked \"Safe for scripting\" via the [`iObjectSafety`](<http://msdn2.microsoft.com/en-us/library/Aa768225.aspx>) interface, includes methods that can be used to overwrite arbitrary files with attacker-provided content.\n\nThe vulnerable control comes with Windows Media Services 4.1, including the Windows Media Administrator software. Other software may also include the vulnerable control. \n \n--- \n \n### Impact\n\nBy convincing a user to view a specially crafted HTML document (e.g., a web page or an HTML email message or attachment), an attacker can overwrite arbitrary files. This may allow the attacker to be able to execute arbitrary code with the privileges of the user. \n \n--- \n \n### Solution\n\n**Apply an update** \n \nMicrosoft has addressed this issue in Microsoft Security Bulletin [MS07-027](<http://www.microsoft.com/technet/security/bulletin/ms07-027.mspx>). Users should review this bulletin and apply the patches it refers to. \n \n--- \n \n \n**Workarounds** \n \n**Disable the NMSA Session Description Object ActiveX control in Internet Explorer** \n \nThe vulnerable ActiveX control can be disabled in Internet Explorer by setting the kill bit for the following CLSID: \n \n`{D4FE6227-1288-11D0-9097-00AA004254A0}` \nMore information about how to set the kill bit is available in [Microsoft Support Document 240797](<http://support.microsoft.com/kb/240797>). Alternatively, the following text can be saved as a `.REG` file and imported to set the kill bit for this control: \n \n`Windows Registry Editor Version 5.00` \n \n`[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Internet Explorer\\ActiveX Compatibility\\{D4FE6227-1288-11D0-9097-00AA004254A0}]` \n`\"Compatibility Flags\"=dword:00000400` \n**Disable ActiveX** \n \nDisabling ActiveX controls in the Internet Zone (or any zone used by an attacker) appears to prevent exploitation of this and other ActiveX vulnerabilities. Instructions for disabling ActiveX in the Internet Zone can be found in the \"[Securing Your Web Browser](<http://www.us-cert.gov/reading_room/securing_browser/#Internet_Explorer>)\" document. \n \n--- \n \n### Vendor Information\n\n500753\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\nUpdated: May 10, 2007 \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\nMicrosoft has addressed this issue in Microsoft Security Bulletin [MS07-027](<http://www.microsoft.com/technet/security/bulletin/ms07-027.mspx>). Users should review this bulletin and apply the patches it refers to.\n\nIf you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:cert@cert.org?Subject=VU%23500753 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/ms07-027.mspx>\n * <http://msdn2.microsoft.com/en-us/library/Aa768225.aspx>\n * <http://secunia.com/advisories/23769/>\n\n### Acknowledgements\n\nThis vulnerability was reported by Microsoft. Microsoft, in turn, acknowledges cocoruder of Fortinet Security Research for reporting this vulnerability to them.\n\nThis document was written by Chad R Dougherty and Will Dormann.\n\n### Other Information\n\n**CVE IDs:** | [CVE-2007-2221](<http://web.nvd.nist.gov/vuln/detail/CVE-2007-2221>) \n---|--- \n**Severity Metric:** | 16.20 \n**Date Public:** | 2007-05-08 \n**Date First Published:** | 2007-05-10 \n**Date Last Updated: ** | 2007-05-10 15:21 UTC \n**Document Revision: ** | 8 \n", "cvss3": {}, "published": "2007-05-10T00:00:00", "type": "cert", "title": "Microsoft Windows Media Services NMSA Session Description Object ActiveX control contains dangerous methods", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2007-2221"], "modified": "2007-05-10T15:21:00", "id": "VU:500753", "href": "https://www.kb.cert.org/vuls/id/500753", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}]}