National Cyber Awareness System
Vulnerability Summary for CVE-2012-4969
Original release date:09/18/2012
Last revised:03/07/2013
Source:
US-CERT/NIST
Overview
Use-after-free vulnerability in the CMshtmlEd::Exec function in mshtml.dll in Microsoft Internet Explorer 6 through 9 allows remote attackers to execute arbitrary code via a crafted web site, as exploited in the wild in September 2012.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
10.0
Exploitability Subscore:
8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable; Victim must voluntarily interact with attack mechanism
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type:Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service
References to Advisories, Solutions, and Tools
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US-CERT Technical Alert: TA12-265A
Name: TA12-265A
US-CERT Technical Alert: TA12-262A
Name: TA12-262A
US-CERT Technical Alert: TA12-255A
Name: TA12-255A
US-CERT Vulnerability Note: VU#480095
Name: VU#480095
External Source: MISC
Name: http://www.securityweek.com/new-internet-explorer-zero-day-being-exploited-wild
External Source: SECTRACK
Name: 1027538
External Source: CONFIRM
Name: http://technet.microsoft.com/security/advisory/2757760
Type: Advisory
External Source: MISC
Name: http://eromang.zataz.com/2012/09/16/zero-day-season-is-really-not-over-yet/
External Source: MISC
Name: http://dev.metasploit.com/redmine/projects/framework/repository/entry/modules/exploits/windows/browser/ie_execcommand_uaf.rb
External Source: MISC
Name: http://blog.vulnhunt.com/index.php/2012/09/17/ie-execcommand-fuction-use-after-free-vulnerability-0day_en/