12378 : Microsoft Windows WINS Association Context Validation Remote Code Execution
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Info

Last Modified

22 days ago

Percent Complete

100%

Disclosure

Dec 14, 2004

Discovery

Unknown

Dates

Exploit

Jan 02, 2005

Solution

Unknown

Keywords

aka "Association Context Vulnerability"

Description

Microsoft Windows Server contains a flaw that may allow a remote attacker to execute arbitrary code. The issue is due to an error in 'WINS.EXE' when handling replication packets. By sending a specially crafted WINS replication packet containing a modified memory pointer, a remote attacker could execute arbitrary code resulting in a loss of integrity.

Classification

Location: Remote/Network Access Required
Attack Type: Input Manipulation
Impact: Loss of Integrity
Exploit: Exploit Available
Disclosure: OSVDB Verified

Solution

Microsoft has released a patch to address this vulnerability. It is also possible to correct the flaw by implementing the following workaround: Disable the WINS service.

1. Control Panel -> "Add or Remove Programs"
2. "Components" -> "Networking Services" -> "Details".
3. Clear box next to "Windows Internet Naming Service (WINS)"

Products

Microsoft Corporation	Windows	NT 4.0 Server SP6a
		NT 4.0 Server SP6a Terminal Server Edition
		2003 Server x64
		2003 Server
		2000 Server SP3
		2000 Server SP4

References

Security Tracker: 1012341
Bugtraq ID: 11763
Related OSVDB ID: 12370
Secunia Advisory ID: 13328
CERT VU: 145134
ISS X-Force ID: 18259
CVE ID: 2004-1080 (see also: NVD)
Microsoft Knowledge Base Article: 870763 890710
Keyword: aka "Association Context Vulnerability"
Mail List Post: http://archives.neohapsis.com/archives/fulldisclosure/2005-04/0060.html
Generic Exploit URL: http://beyonce.beyondsecurity.com/exploits/5EP020KEKW.html
http://metasploit.com/projects/Framework/exploits.html#wins_ms04_045
http://www.metasploit.com
Other Advisory URL: http://www.immunitysec.com/downloads/instantanea.pdf
Vendor URL: http://www.microsoft.com/
Microsoft Security Bulletin: MS04-045
CIAC Advisory: P-054

Tools & Filters

Nessus	15962 15970
Snort	3017

Credit

Kostya Kortchinsky - CERT
Nicolas Waisman - nicolas.waismanimmunitysec.com -

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