Microsoft Windows Ancillary Function Driver privilege escalation
| ms-ancillary-priv-escalation (72839) |  High Risk |
Description:
The Microsoft Windows Ancillary Function Driver (afd.sys) could allow a local attacker to gain elevated privileges on the system, caused by improper validation of input passed from user mode to the kernel. By executing a malicious application on the vulnerable system, a local attacker with valid login credentials could exploit this vulnerability to execute arbitrary code on the system with elevated privileges.
*CVSS:
| Base Score: | 7.2 |
| Access Vector: | Local |
| Access Complexity: | Low |
| Authentication: | None |
| Confidentiality Impact: | Complete |
| Integrity Impact: | Complete |
| Availability Impact: | Complete |
| Temporal Score: | 5.3 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Privileges
Remedy:
Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin MS12-009. See References.
References:
- Microsoft Security Bulletin MS12-009: Vulnerabilities in Ancillary Function Driver Could Allow Elevation of Privilege (2645640).
- BID-51930: Microsoft Windows Ancillary Function Driver CVE-2012-0148 Local Privilege Escalation Vulnerability
- CVE-2012-0148: afd.sys in the Ancillary Function Driver in Microsoft Windows XP SP2, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 on 64-bit platforms does not properly validate user-mode input passed to kernel mode, which allows local users to gain privileges via a crafted application, aka AfdPoll Elevation of Privilege Vulnerability.
- SA47911: Windows Ancillary Function Driver Two Privilege Escalation Vulnerabilities
Platforms Affected:
- Microsoft Windows 7 SP1 x64
- Microsoft Windows Server 2003 SP2 Itanium
- Microsoft Windows Server 2003 SP2 x64
- Microsoft Windows Server 2008 R2 x64
- Microsoft Windows Server 2008 R2 SP1 x64
- Microsoft Windows Server 2008 R2 SP1 Itanium
- Microsoft Windows Server 2008 SP2 Itanium
- Microsoft Windows Server 2008 R2 Itanium
- Microsoft Windows Server 2008 x64
- Microsoft Windows Vista SP2 x64
Reported:
Feb 14, 2012
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.