A security issue has been reported in Dovecot, which can be exploited by malicious users to bypass certain security restrictions.
The security issue is caused due to an error within the LDAP authentication functionality when auth cache is enabled. This can be exploited by a malicious user to log in with the same cached "pass_attrs" of another user (e.g. gain access to the other user's mailbox), which is logged in "auth_cache_ttl" seconds before the malicious user.
Successful exploitation requires non-default configuration settings and that the two users share the same "password" and "pass_filter" variables. Please see the vendor advisory for further details.
The security issue is reported in versions 1.0.rc11 through 1.0.9.
Solution: Update to version 1.0.10.
Provided and/or discovered by: Reported by the vendor.
Original Advisory: http://www.dovecot.org/list/dovecot-news/2007-December/000057.html
Do you have additional information related to this advisory?
Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this
information to firstname.lastname@example.org
Subject: Dovecot LDAP Auth Cache Security Bypass
No posts yet
You must be logged in to post a comment.
Secunia Customer Login
Not a customer already?
Learn more about how our market leading Vulnerability Management solutions can help you manage risk and ensure compliance.