Microsoft Windows CSRSS Information Disclosure Vulnerability - Secunia Advisories - Vulnerability Intelligence

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Microsoft Windows CSRSS Information Disclosure Vulnerability
Secunia Advisory:	SA23491	Advisory Toolbox: Issue ticket Save in to-do list Mark as handled Exploit information Download as PDF Review actions Add comment
Release Date:	2006-12-28
Last Update:	2007-04-11
Popularity:	14,307 views

Critical:	Less critical
Impact:	Exposure of sensitive information Privilege escalation DoS
Where:	Local system
Solution Status:	Vendor Patch

OS:	Microsoft Windows 2000 Advanced Server Microsoft Windows 2000 Datacenter Server Microsoft Windows 2000 Professional Microsoft Windows 2000 Server Microsoft Windows Server 2003 Datacenter Edition Microsoft Windows Server 2003 Enterprise Edition Microsoft Windows Server 2003 Standard Edition Microsoft Windows Server 2003 Web Edition Microsoft Windows Vista Microsoft Windows XP Home Edition Microsoft Windows XP Professional

Subscribe:	Instant alerts on relevant vulnerabilities

CVE reference:	CVE-2006-6797

Description: Rubén Santamarta has discovered a vulnerability in Microsoft Windows, which can be exploited by malicious, local users to cause a DoS (Denial of Service) or gain knowledge of sensitive information. The problem is that the Client/Server Run-time Subsystem (CSRSS.exe) does not properly validate arguments passed via NtRaiseHardError and can be exploited to view the contents of CSRSS process memory. The vulnerability is confirmed on a fully-patched Windows XP SP2 system and reportedly affects Windows 2000 SP4 as well. Other versions may also be affected. Solution: Apply patches. Windows 2000 (requires SP4): http://www.microsoft.com/downloads/de...=909e3b63-4d11-4fe6-849f-1ce960eb62cd Windows XP (requires SP2): http://www.microsoft.com/downloads/de...=69876449-25d1-41b4-b7c8-2b7fb40e59ee Windows XP Professional x64 Edition (optionally with SP2): http://www.microsoft.com/downloads/de...=91fd8716-c1a2-434e-bed0-df9d01e3d685 Windows Server 2003 (optionally with SP1/SP2): http://www.microsoft.com/downloads/de...=4dac667d-b346-461e-8bb5-6112e946349f Windows Server 2003 for Itanium-based systems (optionally with SP1/SP2): http://www.microsoft.com/downloads/de...=639de6c7-0928-469a-be68-60ea391fa770 Windows Server 2003 x64 Edition (optionally with SP2): http://www.microsoft.com/downloads/de...=69dbe4bc-05a5-450b-8c72-e431e800d4f3 Windows Vista: http://www.microsoft.com/downloads/de...=3487b1f0-a383-41a4-a660-2768962b3bcd Windows Vista x64 Edition: http://www.microsoft.com/downloads/de...=c46f62e1-dddd-4886-a82b-ebec258a495b Provided and/or discovered by: Rubén Santamarta Changelog: 2007-01-02: Added CVE reference. 2007-04-10: Updated "Solution" section. 2007-04-11: Added link to US-CERT. Original Advisory: MS07-021 (KB930178): http://www.microsoft.com/technet/security/Bulletin/MS07-021.mspx Reversemode.com: http://www.reversemode.com/index.php?...&task=view&id=29&Itemid=2 Other References: US-CERT VU#740636: http://www.kb.cert.org/vuls/id/740636

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