-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ZDI-12-190 : Microsoft Internet Explorer Title Element Change Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-12-190 December 21, 2012 - -- CVE ID: CVE-2012-1877 - -- CVSS: 7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P - -- 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 12385. 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 to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists in the 'onpropertychange' user callback function for the document.title. If the function changes the document in the callback function by using, for example, a document.write call, this can result in a use-after-free vulnerability. This can lead to remote code execution under the context of the program. - -- Vendor Response: Microsoft has issued an update to correct this vulnerability. More details can be found at: https://technet.microsoft.com/en-us/security/bulletin/ms12-037 - -- Disclosure Timeline: 2012-03-14 - Vulnerability reported to vendor 2012-12-21 - Coordinated public release of advisory - -- Credit: This vulnerability was discovered by: * Anonymous - -- 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: PGP Desktop 10.2.0 (Build 1950) Charset: utf-8 wsBVAwUBUNRW21VtgMGTo1scAQKc7gf+OEjWyyQYkCYucuwZivLId/up2Px3MbYR omQMFCjxijYj0rx77RRQGBcPC8ROhW6Gt9VEA+C86gi1hynG/zTEz+AA6iRxJVfp 6fUmWVL119kh6tcQml4Mz49vjz1tV9zaALpK/jv7V1EuQ7nS5oSbAi4H0M9oXmLX Fht71iOmiFvrnWj+rSZOYJ7Ctd2+DHLGrR72kYEgtU2SLm3cGgJqiEHbbjq/Y7J6 Ba2Y8mHEJKvdpx3012zJ7BrU0ZOUKRhiiibtJj1A+KAX5fwc+TS5mGMGXgTY/WVe sr7diAuRz+R1Uuv1n8ieiV3SuUNcy7NmPlvsXa4VJQsEvB7I9QQIXA== =aqcy -----END PGP SIGNATURE-----