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Vulnerability Details : CVE-2012-2549

The IP-HTTPS server in Windows Server 2008 R2 and R2 SP1 and Server 2012 does not properly validate certificates, which allows remote attackers to bypass intended access restrictions via a revoked certificate, aka "Revoked Certificate Bypass Vulnerability."
Publish Date : 2012-12-11 Last Update Date : 2013-11-02
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Bypass a restriction or similar

- Related OVAL Definitions

Title Definition Id Class Family
Revoked Certificate Bypass Vulnerability - MS12-083 oval:org.mitre.oval:def:16117 windows
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2012-2549

# Product Type Vendor Product Version Update Edition Language
1 OS Microsoft Windows Server 2008 R2 X64 Version Details Vulnerabilities
2 OS Microsoft Windows Server 2008 R2 Itanium Version Details Vulnerabilities
3 OS Microsoft Windows Server 2008 R2 SP1 X64 Version Details Vulnerabilities
4 OS Microsoft Windows Server 2008 R2 SP1 Itanium Version Details Vulnerabilities
5 OS Microsoft Windows Server 2012 - Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Microsoft Windows Server 2008 4
Microsoft Windows Server 2012 1

- References For CVE-2012-2549
Microsoft Security Bulletin MS12-083 MS12-083 - Important : Vulnerability in IP-HTTPS Component Could Allow Security Feature Bypass (2765809) - Version: 1.0 Severity Rating: Important Revision Note: V1.0 (December 11, 2012): Bulletin published. Summary: This security update resolves a privately reported vulnerability in Microsoft Windows. The vulnerability could allow security feature bypass if an attacker presents a revoked certificate to an IP-HTTPS server commonly used in Microsoft DirectAccess deployments. To exploit the vulnerability, an attacker must use a certificate issued from the domain for IP-HTTPS server authentication. Logging on to a system inside the organization would still require system or domain credentials.Release Date:2012-12-11
CERT TA12-346A

- Metasploit Modules Related To CVE-2012-2549

There are not any metasploit modules related to this vulnerability (Please visit for more information)

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