CVE-2008-5112

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 17.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2008-11-17 · updated 2026-06-16
Weakness: CWE-200

Description

The LDAP server in Active Directory in Microsoft Windows 2000 SP4 and Server 2003 SP1 and SP2 responds differently to a failed bind attempt depending on whether the user account exists and is permitted to login, which allows remote attackers to enumerate valid usernames via a series of LDAP bind requests, as demonstrated by ldapuserenum.

Affected products

Microsoft Corporation Windows: server_2003-sp1, server_2003-sp2
Microsoft Windows 2000: all versions

References

http://labs.portcullis.co.uk/application/ldapuserenum/
http://www.portcullis-security.com/294.php
http://www.securityfocus.com/bid/32305
https://exchange.xforce.ibmcloud.com/vulnerabilities/46628
http://labs.portcullis.co.uk/application/ldapuserenum/
http://www.portcullis-security.com/294.php
http://www.securityfocus.com/bid/32305
https://exchange.xforce.ibmcloud.com/vulnerabilities/46628

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