MS13-093 - Vulnerability in Windows Ancillary Function Driver Could Allow Information Disclosure (2875783)

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Details
Vulnerability name/brief description MS13-093 - Vulnerability in Windows Ancillary Function Driver Could Allow Information Disclosure (2875783)
CVE/CAN name
Vendor threat level Important
SophosLabs threat level Medium
Solution MS13-093
Vendor description This security update resolves a privately reported vulnerability in Microsoft Windows. The vulnerability could allow information disclosure if an attacker logs on to an affected system as a local user, and runs a specially crafted application on the system that is designed to enable the attacker to obtain information from a higher-privileged account. An attacker must have valid logon credentials and be able to log on locally to exploit this vulnerability.
SophosLabs comments The attacker must have log on credentials and be physically logged on to the affected system.
SophosLabs testing result No SophosLabs testing result found
Currently known exploits No currently known exploits found
First sample seen No samples found
Discovery date 12 Nov 2013
Affected software Windows XP Professional x64 Edition Service Pack 2
Windows Server 2003 x64 Edition Service Pack 2
Windows Server 2003 with SP2 for Itanium-based Systems
Windows Vista x64 Edition Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 for Itanium-based Systems Service Pack 2
Windows 7 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
Windows 8 for x64-based Systems
Windows Server 2012
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Windows Server 2012 (Server Core installation)
References
Credits
  • MAPP
Revisions
  • November 12, 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:

Vendor-supplied Patch identifier and recommended solution, or workaround if applicable.

Vendor Description:

Summary of the cause and potential effect of the vulnerability provided by the vendor.

SophosLabs Comments:

SophosLabs' opinions and observations of the vulnerability in question.

SophosLabs Testing Result:

Details of completed lab testing, if applicable. Please note that the lab test environment may differ significantly from user environments.

Currently Known Exploits:

List of identities for known exploits, if applicable.

First Sample Seen:

Date of the first sample seen by SophosLabs.

Discovery Date:

Date of the earliest known publically disclosed advisory.

Affected Software:

Vulnerable platforms and software versions.