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[ GLSA 200502-02 ] UW IMAP: CRAM-MD5 authentication bypass
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GLSA
Bodhisattva
Bodhisattva


Joined: 25 Feb 2003
Posts: 3827
Location: Essen, Germany

PostPosted: Wed Feb 02, 2005 11:19 am    Post subject: [ GLSA 200502-02 ] UW IMAP: CRAM-MD5 authentication bypass Reply with quote

Gentoo Linux Security Advisory

Title: UW IMAP: CRAM-MD5 authentication bypass (GLSA 200502-02)
Severity: normal
Exploitable: remote
Date: February 02, 2005
Updated: May 22, 2006
Bug(s): #79874
ID: 200502-02

Synopsis

UW IMAP contains a vulnerability in the code handling CRAM-MD5 authentication allowing authentication bypass.

Background

UW IMAP is the University of Washington IMAP toolkit which includes POP3 and IMAP daemons.

Affected Packages

Package: net-mail/uw-imap
Vulnerable: <= 2004a
Unaffected: >= 2004b
Architectures: All supported architectures


Description

A logic bug in the code handling CRAM-MD5 authentication incorrectly specifies the condition for successful authentication.

Impact

An attacker could exploit this vulnerability to authenticate as any mail user on a server with CRAM-MD5 authentication enabled.

Workaround

Disable CRAM-MD5 authentication.

Resolution

All UW IMAP users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-mail/uw-imap-2004b"


References

US-CERT VU#702777
CVE-2005-0198


Last edited by GLSA on Mon May 22, 2006 4:18 am; edited 2 times in total
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