Microsoft Security Bulletin MS04-045:
Vulnerability in WINS Could Allow Remote Code Execution (870763)
Bulletin URL:
<http://www.microsoft.com/technet/security/bulletin/MS04-045.mspx>
Version Number: 1.0
Issued Date: Tuesday, December 14, 2004
Impact of Vulnerability: Remote Code Execution
Maximum Severity Rating: Important
Patch(es) Replaced: This bulletin replaces a prior security update. See the
frequently asked questions (FAQ) section of this bulletin for the complete list.
Caveats: None
Tested Software:
Affected Software:
------------------
* Microsoft Windows NT Server 4.0 Service Pack 6a
<http://tinyurl.com/653d3>
* Microsoft Windows NT Server 4.0 Terminal Server Edition Service Pack 6
<http://tinyurl.com/58uh2>
* Microsoft Windows 2000 Server Service Pack 3 and Microsoft Windows 2000
Server Service Pack 4
<http://tinyurl.com/7y994>
* Microsoft Windows Server 2003
<http://tinyurl.com/3jaxu>
* Microsoft Windows Server 2003 64-Bit Edition
<http://tinyurl.com/5blpw>
Technical Description:
----------------------
* Name Validation Vulnerability - CAN-2004-0567: A remote code execution
vulnerability exists in WINS because of the way that it handles computer name
validation. An attacker could exploit the vulnerability by constructing a
malicious network packet that could potentially allow remote code execution on
an affected system. An attacker who successfully exploited this vulnerability
could take complete control of an affected system.
* Association Context Vulnerability - CAN-2004-1080: A remote code execution
vulnerability exists in WINS because of the way that it handles association
context validation. An attacker could exploit the vulnerability by constructing
a malicious network packet that could potentially allow remote code execution
on an affected system. An attacker who successfully exploited this
vulnerability could take complete control of an affected system. However,
attempts to exploit this vulnerability would most likely result in a denial of
service on Windows Server 2003. The service would have to be restarted to
restore functionality.
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Cheers,
Russ - Senior Scientist - TruSecure Corporation/NTBugtraq Editor
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