Microsoft Windows #GP trap handler privilege escalation
| ms-win-gptrap-privilege-escalation (55742) |  High Risk |
Description:
Microsoft Windows could allow a local attacker to gain elevated privileges on the system, caused by an error in the #GP trap handler when setting up a VDM context. By setting up a specially-crafted VDM_TIB in their TEB using the #GP trap handler (nt!KiTrap0D), a local attacker could exploit this vulnerability to execute arbitrary code on the system with kernel 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: | 6 |
| Exploitability: | Functional |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Privileges
Remedy:
Apply the appropriate patch for your system, as listed in the latest Microsoft Security Bulletin. See References.
— OR —
Use Microsoft Automatic Update if it is supported by your operating system. The original bulletin issued by Microsoft has been superseded.
References:
- Full-Disclosure Mailing List, Tue Jan 19 2010: Microsoft Windows NT #GP Trap Handler Allows Users to Switch Kernel Stack.
- Microsoft Security Bulletin MS10-015: Vulnerabilities in Windows Kernel Could Allow Elevation of Privilege (977165).
- Microsoft Security Bulletin MS10-021: Vulnerabilities in Windows Kernel Could Allow Elevation of Privilege (979683).
- Microsoft Security Bulletin MS10-047: Vulnerabilities in Windows Kernel Could Allow Elevation of Privilege (981852).
- Microsoft Security Bulletin MS11-011: Vulnerabilities in Windows Kernel Could Allow Elevation of Privilege (2393802).
- Microsoft Security Bulletin MS11-098: Vulnerability in Windows Kernel Could Allow Elevation of Privilege (2633171).
- Microsoft Security Bulletin MS11-098: Vulnerability in Windows Kernel Could Allow Elevation of Privilege (2633171).
- Microsoft Web site: Microsoft Windows.
- BID-37864: Microsoft Windows #GP Trap Handler Local Privilege Escalation Vulnerability
- CVE-2010-0232: The kernel in Microsoft Windows NT 3.1 through Windows 7, including Windows 2000 SP4, Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista Gold, SP1, and SP2, and Windows Server 2008 Gold and SP2, when access to 16-bit applications is enabled on a 32-bit x86 platform, does not properly validate certain BIOS calls, which allows local users to gain privileges by crafting a VDM_TIB data structure in the Thread Environment Block (TEB), and then calling the NtVdmControl function to start the Windows Virtual DOS Machine (aka NTVDM) subsystem, leading to improperly handled exceptions involving the #GP trap handler (nt!KiTrap0D), aka Windows Kernel Exception Handler Vulnerability.
- SA38265: Microsoft Windows "KiTrap0D" Privilege Escalation Vulnerability
- SECTRACK ID: 1023471: Windows Kernel #GP Trap Handler Flaw Lets Local Users Gain Elevated Privileges
- VUPEN/ADV-2010-0179: Microsoft Windows #GP Trap Handler Privilege Escalation Vulnerability
- VUPEN/ADV-2010-0348: Microsoft Windows Kernel Privilege Escalation Vulnerabilities (MS10-015)
Platforms Affected:
- Microsoft Windows 2000 SP4
- Microsoft Windows 7 x32
- Microsoft Windows NT 3.1
- Microsoft Windows NT 4.0
- Microsoft Windows Server 2003 SP2
- Microsoft Windows Vista SP1
- Microsoft Windows Vista
- Microsoft Windows Vista SP2
- Microsoft Windows XP SP2
- Microsoft Windows XP SP3
Reported:
Jan 19, 2010
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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.