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Dovecot Authentication Bypass Vulnerability
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Secunia Advisory:
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SA29295
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Release Date:
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2008-03-10
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Last Update:
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2008-03-12
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Critical:
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Moderately critical
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Impact:
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Security Bypass
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Dovecot 1.x
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| | CVE reference: | CVE-2008-1218 (Secunia mirror)
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Description:
A vulnerability has been reported in Dovecot, which can be exploited by malicious people to bypass certain security restrictions.
The vulnerability is caused due to an error when processing passwords. This can be exploited to set values for internally processed fields via a specially crafted password containing TAB characters.
Successful exploitation allows to log in without valid user credentials.
The vulnerability is reported in versions prior to 1.0.13 and 1.1.rc3.
NOTE: This affects only blocking passdbs (see vendor advisory for details).
Solution:
Update to version 1.0.13.
http://dovecot.org/download.html
Provided and/or discovered by:
Reported by the vendor.
Changelog:
2008-03-12: Added CVE reference.
Original Advisory:
http://dovecot.org/list/dovecot-news/2008-March/000064.html
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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4 Related Secunia Security Advisories
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1. Dovecot LDAP Auth Cache Security Bypass
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2. Dovecot ACL Plugin "i" Right APPEND and COPY Weakness
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3. Dovecot Cache File Off-By-One Vulnerability
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4. Dovecot "LIST" Command Directory Traversal Weakness
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