CERT-In Vulnerability Note
CIVN-2013-0213
WinVerifyTrust Signature Verification Bypass Remote Code Execution Vulnerability
Original Issue Date:December 11, 2013
Severity Rating: HIGH
Systems Affected
- Windows XP SP3 and Professional x64 Edition SP2
- Windows Server 2003 SP2, x64 Edition SP2 and SP2 for Itanium based systems
- Windows Vista SP2 and Vista x64 Edition SP2
- Windows Server 2008 SP2 for 32-bit Systems, x64-based Systems and Itanium-based Systems
- Windows 7 SP1 for 32 bit and 64 bit systems
- Windows Server 2008 R2 SP1 for x64-based Systems and Itanium-based Systems
- Windows 8
- Windows 8.1 for 32-bit Systems and x64-based Systems
- Windows Server 2012
- Windows Server 2012 R2
- Windows Server 2008 for 32-bit Systems and x64-based Systems SP2 (Server Core installation)
- Windows Server 2008 R2 for x64-based Systems SP1 (Server Core installation)
- Windows Server 2012 and Windows Server 2012 R2 (Server Core installation)
Overview
A remote code execution vulnerability has been reported in the WinVerifyTrust function in Microsoft windows which could be exploited by a remote attacker to gain complete control of the targeted system in context of the logged in user.
Description
This vulnerability exists in the WinVerifyTrust function in Microsoft Windows due to improper validation of windows authentication signatures for Portable Executable (PE) file digests. A remote attacker could exploit this vulnerability by injecting malicious code into an existing PE file without invalidating the authenticode signature.
Successful exploitation of this vulnerability could allow the remote attacker to bypass security validation and execute arbitrary code and take control of the affected system.
Solution
Apply appropriate patches as mentioned in the Microsoft Security Bulletin
MS013-098
Vendor Information
Microsoft
http://technet.microsoft.com/en-us/security/bulletin/ms13-098
References
Microsoft
http://technet.microsoft.com/en-us/security/bulletin/ms13-098
Cisco
http://tools.cisco.com/security/center/viewAlert.x?alertId=31975
Secunia
http://secunia.com/advisories/55971/
Symantec
http://www.symantec.com/security_response/vulnerability.jsp?bid=64079
CVE Name
CVE-2013-3900
Disclaimer
The information provided herein is on "as is" basis, without warranty of any kind.
Contact Information
Email: info@cert-in.org.in Phone: +91-11-24368572
Postal address
Indian Computer Emergency Response Team (CERT-In)
Ministry of Electronics and Information Technology
Government of India
Electronics Niketan
6, CGO Complex, Lodhi Road,
New Delhi - 110 003
India
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