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Last updated: 9/1/2014 10:51:44 PM

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Vulnerability Summary for CVE-2013-6171

Original release date: 12/09/2013
Last revised: 12/11/2013


checkpassword-reply in Dovecot before 2.2.7 performs setuid operations to a user who is authenticating, which allows local users to bypass authentication and access virtual email accounts by attaching to the process and using a restricted file descriptor to modify account information in the response to the dovecot-auth server.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 5.8 (MEDIUM) (AV:N/AC:M/Au:N/C:P/I:P/A:N) (legend)
Impact Subscore: 4.9
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification

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External Source: MISC
Name: http://cpanel.net/tsr-2013-0010-full-disclosure/
External Source: MLIST
Name: [Dovecot-news] 20131103 v2.2.7 released
Type: Patch Information
External Source: SECUNIA
Name: 54808
Type: Advisory
External Source: CONFIRM
Name: http://wiki2.dovecot.org/AuthDatabase/CheckPassword#Security

Vulnerable software and versions

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Collapse Configuration 1Configuration 1
Collapse OROR
* cpe:/a:dovecot:dovecot:2.0:beta1
* cpe:/a:dovecot:dovecot:2.0.0
* cpe:/a:dovecot:dovecot:2.0.1
* cpe:/a:dovecot:dovecot:2.0.10
* cpe:/a:dovecot:dovecot:2.0.11
* cpe:/a:dovecot:dovecot:2.0.12
* cpe:/a:dovecot:dovecot:2.0.13
* cpe:/a:dovecot:dovecot:2.0.14
* cpe:/a:dovecot:dovecot:2.0.15
* cpe:/a:dovecot:dovecot:2.0.2
* cpe:/a:dovecot:dovecot:2.0.3
* cpe:/a:dovecot:dovecot:2.0.4
* cpe:/a:dovecot:dovecot:2.0.5
* cpe:/a:dovecot:dovecot:2.0.6
* cpe:/a:dovecot:dovecot:2.0.7
* cpe:/a:dovecot:dovecot:2.0.8
* cpe:/a:dovecot:dovecot:2.0.9
* cpe:/a:dovecot:dovecot:2.1:rc1
* cpe:/a:dovecot:dovecot:2.1:rc2
* cpe:/a:dovecot:dovecot:2.1:rc3
* cpe:/a:dovecot:dovecot:2.1:rc5
* cpe:/a:dovecot:dovecot:2.1:rc6
* cpe:/a:dovecot:dovecot:2.1:rc7
* cpe:/a:dovecot:dovecot:2.1.0
* cpe:/a:dovecot:dovecot:2.1.1
* cpe:/a:dovecot:dovecot:2.1.10
* cpe:/a:dovecot:dovecot:2.1.11
* cpe:/a:dovecot:dovecot:2.1.12
* cpe:/a:dovecot:dovecot:2.1.13
* cpe:/a:dovecot:dovecot:2.1.14
* cpe:/a:dovecot:dovecot:2.1.15
* cpe:/a:dovecot:dovecot:2.1.2
* cpe:/a:dovecot:dovecot:2.1.3
* cpe:/a:dovecot:dovecot:2.1.4
* cpe:/a:dovecot:dovecot:2.1.5
* cpe:/a:dovecot:dovecot:2.1.6
* cpe:/a:dovecot:dovecot:2.1.7
* cpe:/a:dovecot:dovecot:2.2.6 and previous versions
* cpe:/a:dovecot:dovecot:2.2.5
* cpe:/a:dovecot:dovecot:2.2.4
* cpe:/a:dovecot:dovecot:2.2.3
* cpe:/a:dovecot:dovecot:2.2.2
* cpe:/a:dovecot:dovecot:2.2.1
* cpe:/a:dovecot:dovecot:2.2.0
* cpe:/a:dovecot:dovecot:2.2:rc7
* cpe:/a:dovecot:dovecot:2.2:rc6
* cpe:/a:dovecot:dovecot:2.2:rc5
* cpe:/a:dovecot:dovecot:2.2:rc4
* cpe:/a:dovecot:dovecot:2.2:rc3
* cpe:/a:dovecot:dovecot:2.2:rc2
* cpe:/a:dovecot:dovecot:2.2:rc1
* Denotes Vulnerable Software
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