Microsoft Windows winlogon buffer overflow
| win-winlogon-bo (15702) |  High Risk |
Description:
Microsoft Windows NT 4.0, Windows 2000, and Windows XP, that are members of an Active Directory Domain, are vulnerable to a buffer overflow in the Windows logon process (winlogon), caused by improper bounds checking of data from the Active Directory. A remote attacker, with permissions to modify user objects within Active Directory, could embed malicious data into a Active Directory attribute, which would overflow a buffer and execute arbitrary code on the system, once winlogon is passed the malicious attribute.
Consequences:
Gain Access
Remedy:
Apply the appropriate patch for your system, as listed in the Microsoft Security Bulletin MS04-011. See References.
References:
- CIAC Information Bulletin O-114: Microsoft Security Update for Microsoft Windows.
- CIAC Information Bulletin O-114: Microsoft Security Update for Microsoft Windows [REVISED 25 Jun 2004].
- Internet Security Systems Security Alert, April 13, 2004: Multiple Vulnerabilities in Microsoft Products.
- Microsoft Security Bulletin MS04-011: Security Update for Microsoft Windows (835732).
- BID-10126: Microsoft Windows Logon Process Remote Buffer Overflow Vulnerability
- CVE-2003-0806: Buffer overflow in the Windows logon process (winlogon) in Microsoft Windows NT 4.0 SP6a, 2000 SP2 through SP4, and XP SP1, when a member of a domain, allows remote attackers to execute arbitrary code.
- US-CERT VU#471260: Microsoft Windows logon process fails contains a buffer overflow during the logon process
Platforms Affected:
- Microsoft Windows 2000
- Microsoft Windows NT 4.0
- Microsoft Windows XP
Reported:
Apr 13, 2004
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