Vulnerability Note VU#639428

Microsoft Windows 2000 LSASS fails to properly handle certain LDAP messages

Overview

A vulnerability exists in the Lightweight Directory Access Protocol (LDAP) message processing of the Windows 2000 domain controller. An attacker may be able to cause a denial-of-service condition to the vulnerable Active Directory domain.

I. Description

A vulnerability exists in the processing of Lightweight Directory Access Protocol (LDAP) messages by the Windows 2000 domain controller. An attacker may be able send a crafted LDAP message to the vulnerable system and stop the authentication service for the Active Directory domain to stop.

II. Impact

A remote attacker may be able to stop the authentication service, causing a denial-of-service condition for the Active Directory domain.

III. Solution

Apply a patch from the vendor

Microsoft Security Bulletin MS04-011 contains patch information to resolve this issue.

Systems Affected

Vendor	Status	Date Notified	Date Updated
Microsoft Corporation	Vulnerable	13-Apr-2004

References

http://www.microsoft.com/technet/security/bulletin/ms04-011.mspx

Credit

Thanks to Microsoft for reporting this vulnerability.

This document was written by Jason A Rafail.

Other Information

Date Public:	2004-04-13
Date First Published:	2004-04-13
Date Last Updated:	2004-04-13
CERT Advisory:
CVE-ID(s):	CAN-2003-0663
NVD-ID(s):	CAN-2003-0663
US-CERT Technical Alerts:
Metric:	4.94
Document Revision:	2

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Get Adobe Reader