CVE-2012-4792 on CISA KEV

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

01What CISA says about this vulnerability

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.

02Required action — verbatim from CISA

The impacted product is end-of-life and should be disconnected if still in use.

03Notes & references

• www.us-cert.gov — http://www.us-cert.gov/cas/techalerts/TA13-008A.html
• docs.microsoft.com — https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-00…
• www.kb.cert.org — http://www.kb.cert.org/vuls/id/154201
• github.com — https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/wind…
• labs.alienvault.com — http://labs.alienvault.com/labs/index.php/2012/just-another-water-hole-campaign-…
• packetstormsecurity.com — http://packetstormsecurity.com/files/119168/Microsoft-Internet-Explorer-CDwnBind…
• eromang.zataz.com — http://eromang.zataz.com/2012/12/29/attack-and-ie-0day-informations-used-against…
• oval.cisecurity.org — https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3…
• www.us-cert.gov — http://www.us-cert.gov/cas/techalerts/TA13-015A.html
• blog.fireeye.com — http://blog.fireeye.com/research/2012/12/council-foreign-relations-water-hole-at…
• blogs.technet.com — http://blogs.technet.com/b/srd/archive/2012/12/29/new-vulnerability-affecting-in…
• technet.microsoft.com — http://technet.microsoft.com/security/advisory/2794220
• blogs.technet.com — http://blogs.technet.com/b/srd/archive/2012/12/31/microsoft-quot-fix-it-quot-ava…

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
n	a / n/a	n/a

06Detection

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