BID:10114

Microsoft Windows 2000 Domain Controller LDAP Denial Of Service Vulnerability

Info

Microsoft Windows 2000 Domain Controller LDAP Denial Of Service Vulnerability

Bugtraq ID:	10114
Class:	Failure to Handle Exceptional Conditions
CVE:
Remote:	Yes
Local:	No
Published:	Apr 13 2004 12:00AM
Updated:	Apr 13 2004 12:00AM
Credit:	Discovery is credited to Carlos Sarraute of Core Security Technologies.
Vulnerable:	Microsoft Windows 2000 Server SP4 Microsoft Windows 2000 Server SP3 Microsoft Windows 2000 Server SP2 Microsoft Windows 2000 Server SP1 Microsoft Windows 2000 Server + Avaya DefinityOne Media Servers + Avaya IP600 Media Servers + Avaya S3400 Message Application Server 0 + Avaya S8100 Media Servers 0 Microsoft Windows 2000 Professional SP4 Microsoft Windows 2000 Professional SP3 Microsoft Windows 2000 Professional SP2 Microsoft Windows 2000 Professional SP1 Microsoft Windows 2000 Professional Microsoft Windows 2000 Datacenter Server SP4 Microsoft Windows 2000 Datacenter Server SP3 Microsoft Windows 2000 Datacenter Server SP2 Microsoft Windows 2000 Datacenter Server SP1 Microsoft Windows 2000 Datacenter Server Microsoft Windows 2000 Advanced Server SP4 Microsoft Windows 2000 Advanced Server SP3 Microsoft Windows 2000 Advanced Server SP2 Microsoft Windows 2000 Advanced Server SP1 Microsoft Windows 2000 Advanced Server Avaya S8100 Media Servers 0 + Microsoft Windows 2000 Server + Microsoft Windows NT Server 4.0 SP6a Avaya S3400 Message Application Server 0 + Microsoft Windows 2000 Server Avaya IP600 Media Servers Avaya DefinityOne Media Servers

Not Vulnerable:

Discussion

Microsoft Windows 2000 Domain Controller LDAP Denial Of Service Vulnerability

A denial of service vulnerability has been reported in Microsoft Windows 2000 Server systems that are acting as Domain Controllers.

This issue may be triggered by sending a malformed LDAP query to an affected Windows 2000 Domain Controller. This will cause a reboot in the Domain Controller and may be exploited repeatedly to cause a persistent denial of service.

Exploit / POC

Microsoft Windows 2000 Domain Controller LDAP Denial Of Service Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Solution / Fix

Microsoft Windows 2000 Domain Controller LDAP Denial Of Service Vulnerability

Solution:
Avaya has released an advisory to announce that Avaya System Products shipping on Microsoft platforms are also affected by this vulnerability. Avaya advise that customers follow the Microsoft recommendations for the resolution of this issue. The aforementioned advisory can be viewed at the following location:
http://support.avaya.com/japple/css/japple?temp.groupID=&temp.selectedFamily=128451&temp.selectedProduct=154235&temp.selectedBucket=126655&temp.feedbackState=askForFeedback&temp.documentID=161384&PAGE=avaya.css.CSSLvl1Detail&executeTransaction=avaya.css.UsageUpdate()

Microsoft has released fixes to address this issue.

US-CERT has released an advisory TA04-104A to address this and other issues. Please see the referenced advisory for more information.

Microsoft Windows 2000 Server SP2