SMTP Service and IMC in Windows 2000 and Exchange Server 5.5 Vulnerability: Remote Mail Relaying via Null Session Credentials

CVE-2002-0054

SMTP service in (1) Microsoft Windows 2000 and (2) Internet Mail Connector (IMC) in Exchange Server 5.5 does not properly handle responses to NTLM authentication, which allows remote attackers to perform mail relaying via an SMTP AUTH command using null session credentials.

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