ZDI-12-035 : Microsoft Internet Explorer CDispNode t:MEDIA Remote Code Execution Vulnerability


-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ZDI-12-035 : Microsoft Internet Explorer CDispNode t:MEDIA Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-12-035 February 22, 2012 - -- CVE ID: CVE-2012-0011 - -- CVSS: 9, AV:N/AC:L/Au:N/C:P/I:P/A:C - -- Affected Vendors: Microsoft - -- Affected Products: Microsoft Internet Explorer 9 - -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability by Digital Vaccine protection filter ID 12065. For further product information on the TippingPoint IPS, visit: http://www.tippingpoint.com - -- Vulnerability Details: This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Internet Explorer. User interaction is required in that a target must visit a malicious page or open a malicious file. The flaw exists within MSHTML, specifically the handling of an HTML time t:MEDIA element. A t:MEDIA element can be manipulated such that when the page is refreshed a reference to a freed CDispNode object remains allowing the repurpose of this region. A remote attacker can exploit this vulnerability to execute arbitrary code under the context of the process. - -- Vendor Response: Microsoft has issued an update to correct this vulnerability. More details can be found at: http://technet.microsoft.com/en-us/security/bulletin/MS12-010 - -- Disclosure Timeline: 2011-10-21 - Vulnerability reported to vendor 2012-02-22 - Coordinated public release of advisory - -- Credit: This vulnerability was discovered by: * Stephen Fewer of Harmony Security (www.harmonysecurity.com) - -- About the Zero Day Initiative (ZDI): Established by TippingPoint, The Zero Day Initiative (ZDI) represents a best-of-breed model for rewarding security researchers for responsibly disclosing discovered vulnerabilities. Researchers interested in getting paid for their security research through the ZDI can find more information and sign-up at: http://www.zerodayinitiative.com The ZDI is unique in how the acquired vulnerability information is used. TippingPoint does not re-sell the vulnerability details or any exploit code. Instead, upon notifying the affected product vendor, TippingPoint provides its customers with zero day protection through its intrusion prevention technology. Explicit details regarding the specifics of the vulnerability are not exposed to any parties until an official vendor patch is publicly available. Furthermore, with the altruistic aim of helping to secure a broader user base, TippingPoint provides this vulnerability information confidentially to security vendors (including competitors) who have a vulnerability protection or mitigation product. Our vulnerability disclosure policy is available online at: http://www.zerodayinitiative.com/advisories/disclosure_policy/ Follow the ZDI on Twitter: http://twitter.com/thezdi -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.17 (MingW32) iQEcBAEBAgAGBQJPRUksAAoJEFVtgMGTo1scR5oIAIXtdlN+Mi4kSp6eh2oTLkRb /Te/42Ah+JaIG/iEhPIKjYH7nc+rJutgH3AlqapCP99pJf9cEPLJlUaXl63ZQ2dT BwMmOz7XUz2ObIJd0Pf3UN0wlFB6Z3mAYMnwz8wSRav7mUyYDaDroESuiI9yCzjt F+yB5EaHqKBJxyrOayuZY98C/mXAKoaRlATTd4oLjxYNkx9WIQBhKvPI/JX8gdX0 bli1Y+YfbRvqx/4C9uEewu8pLs7/6K/8Ze76+ZBN8H8ub20Ipt4rE1tCkb7Ca/pg v1nyZ0fHTYDMkBhVhx8pVs3MpQmxAcjxMgmaz5b8vGOjo7ew9FrG5x+XSAvLnHo= =K996 -----END PGP SIGNATURE-----