66981 : Microsoft Windows win32k.sys Driver User Mode Copy Memory Allocation Local Privilege Escalation
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Timeline

Disclosure Date
2010-08-10

Description

Microsoft Windows contains a flaw that may allow an attacker to gain access to unauthorized privileges. The issue is triggered when win32k.sys fails to properly allocate memory when copying data from user mode, allowing a local authenticated attacker to cause a pool overflow and gain full user privileges.

Classification

Location: Local Access Required
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Patch / RCS
Exploit: Exploit Private
Disclosure: Vendor Verified
OSVDB: Authentication Required

Solution

Currently, there are no known workarounds or upgrades to correct this issue. However, Microsoft has released a patch to address this vulnerability. Check the vendor advisory or solution in the references section.

Products

Microsoft Corporation
Windows Server
2003 SP2 for Itanium
2003 x64 Edition SP2
2003 SP2
Windows XP
SP3
Professional x64 Edition SP2

References

Tools & Filters

48285

Credit

CVSSv2 Score

CVSSv2 Base Score = 6.6
Source: nvd.nist.gov | Generated: 2010-08-12 | Disagree?

Access_vector_0 Access_complexity_1 Authentication_1 Confidentiality_impact_2 Integrity_impact_2 Availability_impact_2

Comments

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