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Home >> Browse Vulnerability Assessment Database >> Misc. >> UW-IMAP CRAM-MD5 Remote Authentication Bypass Vulnerability


Vulnerability Assessment Details

UW-IMAP CRAM-MD5 Remote Authentication Bypass Vulnerability

Vulnerability Assessment Summary
Checks the version of UW-IMAP

Detailed Explanation for this Vulnerability Assessment

There is a flaw in the remote UW-IMAP server which permits an
authenticated user to log into the server as any user. The flaw is
in the CRAM-MD5 authentication theme.

A possible hacker, exploiting this flaw, would only need to identify a
vulnerable UW-IMAP server which had enabled the CRAM-MD5 authentication
scheme.
The attacker would then be able to log in as any valid user.

It is important to note that the IMAP daemon will automatically enable
CRAM-MD5 if the /etc/cram-md5.pwd file exists.


Solution : Upgrade to the most recent version of UW-IMAP.
In addition, the fact that CRAM-MD5 is enabled indicates that
the server is storing the IMAP passwords in plaintext.
Ensure that the /etc/cram-md5.pwd file is mode 0400.

Network Security Threat Level: High

Networks Security ID: 12391

Vulnerability Assessment Copyright: This script is Copyright (C) 2005 Tenable Network Security

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