Signature Detail

HTTP: Microsoft Internet Explorer Use-After-Free Code Execution

This signature detects attempts to exploit a known vulnerability against Microsoft Internet Explorer. A successful attack can lead to arbitrary code execution.

Extended Description

Use-after-free vulnerability in Microsoft Internet Explorer 6 through 8 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to an object that (1) was not properly allocated or (2) is deleted, as demonstrated by a CDwnBindInfo object, and exploited in the wild in December 2012.

Affected Products

• Microsoft internet_explorer 6
• Microsoft internet_explorer 7
• Microsoft internet_explorer 8

References

• BugTraq: 57070
• CVE: CVE-2012-4792
• URL: http://blog.fireeye.com/research/2012/12/council-foreign-relations-water-hole-attack-details.html
• URL: http://eromang.zataz.com/2012/12/29/attack-and-ie-0day-informations-used-against-council-on-foreign-relations/
• URL: http://technet.microsoft.com/en-us/security/advisory/2794220
• URL: http://blogs.technet.com/b/srd/archive/2012/12/29/new-vulnerability-affecting-internet-explorer-8-users.aspx
• URL: http://blog.exodusintel.com/2013/01/02/happy-new-year-analysis-of-cve-2012-4792/
• URL: https://community.rapid7.com/community/metasploit/blog/2012/12/29/microsoft-internet-explorer-0-day-marks-the-end-of-2012