MS13-101 - Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Elevation of Privilege (2880430)

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Details
Vulnerability name/brief description MS13-101 - Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Elevation of Privilege (2880430)
CVE/CAN name
Vendor threat level Important
SophosLabs threat level Medium
Solution MS13-101
Vendor description This security update resolves five privately reported vulnerabilities in Microsoft Windows. The more severe of these vulnerabilities could allow elevation of privilege if an attacker logs on to the system and runs a specially crafted application. An attacker must have valid logon credentials and be able to log on locally to exploit this vulnerability. The security update addresses the vulnerabilities by by correcting the way that the Windows kernel-mode driver validates memory address values by ensuring that the Windows kernel-mode driver properly handles objects in memory, by ensuring that the Windows kernel-mode drivers properly validate array indexes when loading TrueType font files, and by correcting the way that the Windows audio port-class driver handles objects in memory.
SophosLabs comments As the vulnerabilities were privately reported through responsible disclosure, SophosLabs have rated this as medium. These vulnerabilities are kernel mode centric exploits and while the kernel is a critical component of the operating system, access is typically difficult in a secure networked environment which employs a best practice policy towards computer security. This will mitigate the user's ability to run programs.
SophosLabs testing result No SophosLabs testing result found
Currently known exploits No currently known exploits found
First sample seen No samples found
Discovery date 10 Dec 2013
Affected software Windows XP Service Pack 3
Windows XP Professional x64 Edition Service Pack 2
Windows Server 2003 Service Pack 2
Windows Server 2003 x64 Edition Service Pack 2
Windows Server 2003 with SP2 for Itanium-based Systems
Windows Vista Service Pack 2
Windows Vista Service Pack 2
Windows Vista x64 Edition Service Pack 2
Windows Server 2008 for 32-bit Systems 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 32-bit Systems Service Pack 1
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 32-bit Systems
Windows 8 for x64-based Systems
Windows 8.1 for 32-bit Systems
Windows 8.1 for x64-based Systems
Windows Server 2012
Windows Server 2012 R2
Windows RT
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
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)
Windows Server 2012 R2 (server core installation)
References
Credits
  • MAPP
Revisions
  • December 10, 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:

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.