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Microsoft Windows Two Privilege Escalation Vulnerabilities

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Description


Two vulnerabilities have been reported in Microsoft Windows, which can be exploited by malicious, local users to gain escalated privileges.

1) An error exists within the #GP trap handler (nt!KiTrap0D), which can be exploited to execute arbitrary code with kernel privileges.

NOTE: 64-bit Microsoft Windows operating systems and Windows Server 2008 R2 for x64- and Itanium-based systems are not affected.

2) An error exists due to the Windows kernel not correctly resetting a pointer when freeing memory, which can be exploited to trigger a double-free condition.

Successful exploitation of this vulnerability allows arbitrary code execution with system level privileges.


Solution:
Apply patches.

Further details available to Secunia VIM customers

Provided and/or discovered by:
1) Tavis Ormandy
2) The vendor credits Tavis Ormandy, Google Inc.

Original Advisory:
Tavis Ormandy:
http://archives.neohapsis.com/archives/fulldisclosure/2010-01/0346.html

Microsoft (KB979682):
http://www.microsoft.com/technet/security/advisory/979682.mspx

MS10-015 (KB977165):
http://www.microsoft.com/technet/security/Bulletin/MS10-015.mspx

Microsoft:
http://blogs.technet.com/msrc/archive/2010/03/02/update-ms10-015-security-update-re-released-with-new-detection-logic.aspx

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Microsoft Windows Two Privilege Escalation Vulnerabilities

User Message
pc.tech1 RE: Microsoft Windows Two Privilege Escalation Vulnerabilities
Member 16th Feb, 2010 13:07
Score: 5
Posts: 17
User Since: 13th Feb 2010
System Score: N/A
Location: US
Last edited on 16th Feb, 2010 13:07
MS010-015 - latest from MS:
- - http://blogs.technet.com/msrc/archive/2010/02/12/u...
February 12, 2010

No resolution yet. Some get BSOD after install of this patch and reboot.

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pc.tech1 RE: Microsoft Windows Two Privilege Escalation Vulnerabilities
Member 3rd Mar, 2010 21:06
Score: 5
Posts: 17
User Since: 13th Feb 2010
System Score: N/A
Location: US
Last edited on 3rd Mar, 2010 21:06
- http://web.nvd.nist.gov/view/vuln/detail?vulnId=CV...
- http://web.nvd.nist.gov/view/vuln/detail?vulnId=CV...
____

MS10-015 re-released with new detection logic
- http://blogs.technet.com/msrc/archive/2010/03/02/u...
March 02, 2010
- http://support.microsoft.com/kb/980966
.

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