Signature Detail

LDAP: Microsoft Windows Active Directory LDAP Authentication Bypass

This signature detects attempts to exploit a known flaw in Microsoft Windows Active Directory, Active Directory Application Mode (ADAM), and Active Directory Lightweight Directory Service (AD LDS). A successful attack can lead to unauthorized information disclosure.

Extended Description

The LDAP over SSL (aka LDAPS) implementation in Active Directory, Active Directory Application Mode (ADAM), and Active Directory Lightweight Directory Service (AD LDS) in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 does not examine Certificate Revocation Lists (CRLs), which allows remote authenticated users to bypass intended certificate restrictions and access Active Directory resources by leveraging a revoked X.509 certificate for a domain account, aka "LDAPS Authentication Bypass Vulnerability."

Affected Products

• microsoft windows_7 - (-)
• microsoft windows_7 - (sp1)
• microsoft windows_7 - (sp1:x32)
• microsoft windows_7 - (sp1:x64)
• microsoft windows_7 - (-:x32)
• microsoft windows_7 - (-:x64)
• microsoft windows_server_2003 (sp2)
• microsoft windows_server_2003 (sp2:itanium)
• microsoft windows_server_2003 (sp2:x64)
• microsoft windows_server_2008 r2
• microsoft windows_server_2008 r2 (sp1)
• microsoft windows_server_2008 r2 (sp1:x64)
• microsoft windows_server_2008 r2 (:x64)
• microsoft windows_server_2008 (sp2)
• microsoft windows_server_2008 (sp2:x32)
• microsoft windows_server_2008 (sp2:x64)
• microsoft windows_vista (sp2)
• microsoft windows_vista (sp2:x64)
• microsoft windows_xp - (sp2)
• microsoft windows_xp - (sp2:x64)
• microsoft windows_xp (sp3)

References

• CVE: CVE-2011-2014