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Windows NTLM relaying attacks
updated since 14.09.2000
Published: 24.04.2003
Source: BUGTRAQ
SecurityVulns ID: 542
Type: client
Level: 7/10
Description: Some client program use NTLM authentication with user's permission without user request. It may leak to NTLM credentials and perform choosen challenge attack and comprometation of server's with client credentials by relaying NTLM request.

Affected: MICROSOFT : Windows NT 4.0 Workstation
MICROSOFT : Windows NT 4.0 Server
MICROSOFT : Windows 2000 Server
MICROSOFT : Windows 2000 Advanced Server
MICROSOFT : Windows 2000 Professional
MICROSOFT : Windows 98
MICROSOFT : Windows 95
MICROSOFT : Windows ME
MICROSOFT : Windows XP

Original document 3APA3A, Outlook Express and SPA (Secure Password Authentication) (20.10.2001)

seclab_(at)_ce.aut.ac.ir, Authentication flaw in microsoft SMB protocol (24.04.2003)

L0PHT, @stake Advisory: NTLM Replaying via Windows 2000 Telnet Client (A 091400-1) (15.09.2000)

MICROSOFT, Security Bulletin (MS00-067) (15.09.2000)

document monti, Win2k Telnet.exe malicious server vulnerability (14.09.2000)

monti, Win2k Telnet.exe malicious server vulnerability (14.09.2000)

Files: Server for Win2K telnet NTLM response interseption
Prehashed NTLM challenge.
NTLM Rogue Telnet Server (@Stake)
Exploit for "Authentication flaw in Windows SMB protocol"
Patch Win2K telnet NTLM Authentication
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