Secunia Security Advisory - A vulnerability has been reported in University of Washington IMAP server, which can be exploited by malicious people to bypass the user authentication.
5076f1631c337b3853afd5c8934a42884da91d0055a09398f94d0474d106ce64
TITLE:
UW-imapd CRAM-MD5 Authentication Bypass Vulnerability
SECUNIA ADVISORY ID:
SA14057
VERIFY ADVISORY:
http://secunia.com/advisories/14057/
CRITICAL:
Moderately critical
IMPACT:
Security Bypass
WHERE:
>From remote
SOFTWARE:
UW-imapd
http://secunia.com/product/1578/
DESCRIPTION:
A vulnerability has been reported in University of Washington IMAP
server, which can be exploited by malicious people to bypass the user
authentication.
The vulnerability is caused due to a logic error in the CRAM-MD5
(Challenge-Response Authentication Mechanism with MD5) authentication
method when evaluating the conditions of successful authentication.
This can be exploited to gain access to arbitrary users' mailboxes.
Successful exploitation requires that CRAM-MD5 authentication has
been enabled (not default setting).
SOLUTION:
Update to imap-2004b or later.
ftp://ftp.cac.washington.edu/mail/imap.tar.Z
PROVIDED AND/OR DISCOVERED BY:
Reported by vendor.
OTHER REFERENCES:
US-CERT VU#702777:
http://www.kb.cert.org/vuls/id/702777
----------------------------------------------------------------------
About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.
Subscribe:
http://secunia.com/secunia_security_advisories/
Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/
Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.
----------------------------------------------------------------------