Actively exploited · Published Dec 30, 2012 · Assigned by microsoft
CVE-2012-4792
High 8.8 Exploited
In plain English
A high-severity use-after-free in Internet Explorer from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on July 23, 2024). The chance it is exploited in the next 30 days is estimated at 78.8% (higher than 99.6% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit, public proof-of-concept code. The impacted product is end-of-life and should be disconnected if still in use.
CISA guidance
The impacted product is end-of-life and should be disconnected if still in use.
Federal agencies must remediate by Aug 13, 2024.
Official 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 (as reported)
Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- TA13-008A third-party-advisory, x_refsource_CERT
- MS13-008 vendor-advisory, x_refsource_MS
- VU#154201 third-party-advisory, x_refsource_CERT-VN
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/ie_cbutton_uaf.rb x_refsource_MISC
- http://labs.alienvault.com/labs/index.php/2012/just-another-water-hole-campaign-using-an-internet-explorer-0day/ x_refsource_MISC
- http://packetstormsecurity.com/files/119168/Microsoft-Internet-Explorer-CDwnBindInfo-Object-Use-After-Free.html x_refsource_MISC
- http://eromang.zataz.com/2012/12/29/attack-and-ie-0day-informations-used-against-council-on-foreign-relations/ x_refsource_MISC
- oval:org.mitre.oval:def:16361 vdb-entry, signature, x_refsource_OVAL
- TA13-015A third-party-advisory, x_refsource_CERT
- http://blog.fireeye.com/research/2012/12/council-foreign-relations-water-hole-attack-details.html x_refsource_MISC
- http://blogs.technet.com/b/srd/archive/2012/12/29/new-vulnerability-affecting-internet-explorer-8-users.aspx x_refsource_CONFIRM
- http://technet.microsoft.com/security/advisory/2794220 x_refsource_CONFIRM
- http://blogs.technet.com/b/srd/archive/2012/12/31/microsoft-quot-fix-it-quot-available-for-internet-explorer-6-7-and-8.aspx x_refsource_CONFIRM
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-4792 government-resource