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Insecure Library Loading
Highly critical

Microsoft Windows Kernel Multiple Vulnerabilities

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Release Date:  2013-05-21    Last Update:  2013-07-29    Views:  7,887

Secunia Advisory SA53435

Where:

From remote

Impact:

Exposure of system information, Exposure of sensitive information, Privilege escalation, DoS, System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Multiple vulnerabilities have been reported in Microsoft Windows, which can be exploited by malicious, local users to disclose sensitive information, cause a DoS (Denial of Service), and potentially gain escalated privileges and by malicious people to potentially compromise a vulnerable system.

1) An error exists within "win32k.sys" when processing certain objects and can be exploited to cause a crash or execute arbitrary code with the kernel privilege.

This vulnerability is confirmed on a fully patched Windows 7 x86 Professional (win32k.sys version 6.1.7601.18126).

2) An error exists within the "NtUserMessageCall" function (win32k.sys) when handling boolean arguments and can be exploited to gain escalated privileges.

3) An error within the Windows kernel-mode driver (win32k.sys) when handling certain objects can be exploited to gain escalated privileges.

4) An error exists within the Windows kernel-mode driver (win32k.sys) when destroying Dynamic Data Exchange objects within a thread and can be exploited to gain escalated privileges.

5) An error exists within the GDI+ subsystem.

For more information:
SA54057

Successful exploitation of vulnerabilities #1 and #5 allows execution of arbitrary code.

6) An unspecified error within the Windows kernel-mode driver (win32k.sys) when handling certain objects can be exploited to disclose sensitive information.

7) An unspecified error within the Windows kernel-mode driver (win32k.sys) when handling certain objects can be exploited to cause a crash.

8) An unspecified error within the Windows kernel-mode driver (win32k.sys) can be exploited to cause a buffer overflow and execute arbitrary code with kernel privileges.


Solution:
Apply updates.

Further details available to Secunia VIM customers

Provided and/or discovered by:
1) Tavis Ormandy
2) Jon Butler and Nils, MWR Labs via ZDI
4) An anonymous person via ZDI

The vendor credits:
3) Alexandar Chizhov, Dr.Web
5) Ling Chuan Lee and Lee Yee Chan, F13 Laboratory
6) Yinliang, Tencent PC Manager
7) Mateusz "j00ru" Jurczyk, Google Inc
8) Wen Yujie and Guo Pengfei, Qihoo 360 Security Center

Original Advisory:
MS13-053 (KB2850851):
http://technet.microsoft.com/en-us/security/bulletin/ms13-053

ZDI (ZDI-13-170, ZDI-13-171):
http://www.zerodayinitiative.com/advisories/ZDI-13-170/
http://www.zerodayinitiative.com/advisories/ZDI-13-171/

Tavis Ormandy:
http://seclists.org/fulldisclosure/2013/May/91
http://packetstormsecurity.com/files/121851/Windows-NT-2K-XP-2K3-VISTA-2K8-7-8-EPATHOBJ-Local-ring0.html

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 Kernel Multiple Vulnerabilities

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