MS13-066 - Vulnerability in Active Directory Federation Services Could Allow Information Disclosure (2873872)

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Details
Vulnerability name/brief description MS13-066 - Vulnerability in Active Directory Federation Services Could Allow Information Disclosure (2873872)
CVE/CAN name
Vendor threat level Important
SophosLabs threat level low
Solution MS13-066
Vendor description This security update resolves a privately reported vulnerability in Active Directory Federation Services (AD FS). The vulnerability could reveal information pertaining to the service account used by AD FS. An attacker could then attempt logons from outside the corporate network, which would result in account lockout of the service account used by AD FS if an account lockout policy has been configured. This would result in denial of service for all applications relying on the AD FS instance.
SophosLabs comments AD FS is commonly used to provide users with Single Sign-On access. AD FS vulnerabilities should be patched ASAP.
SophosLabs testing result No SophosLabs testing result found
Currently known exploits No currently known exploits found
First sample seen No samples found
Discovery date 13 Aug 2013
Affected software Windows Server 2003 R2:
Active Directory Federation Services 1.x when installed on Windows Server 2003 R2 Service Pack 2
Active Directory Federation Services 1.x when installed on Windows Server 2003 R2 x64 Edition Service Pack 2
Windows Server 2008:
Active Directory Federation Services 2.0 when installed on Windows Server 2008 for 32-bit Systems Service Pack 2
Active Directory Federation Services 1.x when installed on Windows Server 2008 for 32-bit Systems Service Pack 2
Active Directory Federation Services 2.0 when installed on Windows Server 2008 for x64-based Systems Service Pack 2
Active Directory Federation Services 1.x when installed on Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 R2:
Active Directory Federation Services 2.0 when installed on Windows Server 2008 R2 for x64-based Systems Service Pack 1
Active Directory Federation Services 1.x when installed on Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2012:
Active Directory Federation Services 2.1 when installed on Windows Server 2012
References
Credits
  • MAPP
Revisions
  • August 13, 2013 - Initial Revision Written

Explanation of terms

Vulnerability Name/Brief Description:

Vendor identifier plus a brief description of the type of attack.

CVE/CAN Name:

Currently assigned CVE name. If a CVE name doesn't exist the CAN name will be used until a CVE has been assigned.

Vendor Threat Level:

Threat level assigned by the vendor

SophosLabs Threat Level:

Threat level assigned by SophosLabs

  • LOW RISK - There is little chance of this vulnerability being actively exploited by malware.
  • MEDIUM RISK - There is a possibility of this vulnerability being actively exploited by malware.
  • HIGH RISK - There is a strong possibility of this vulnerability being actively exploited by malware.
  • CRITICAL RISK - This vulnerability will almost certainly be actively exploited by malware.

Solution:

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Vendor Description:

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SophosLabs Comments:

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SophosLabs Testing Result:

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Currently Known Exploits:

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First Sample Seen:

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Discovery Date:

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Affected Software:

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