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Bug 187512 - net-mail/dovecot < 1.0.3 ACL Plugin "i" Right APPEND and COPY Weakness (CVE-2007-4211)
Summary: net-mail/dovecot < 1.0.3 ACL Plugin "i" Right APPEND and COPY Weakness (CVE-2...
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: High normal (vote)
Assignee: Gentoo Security
URL: http://secunia.com/advisories/26320/
Whiteboard: B4 [noglsa]
Keywords:
Depends on:
Blocks:
 
Reported: 2007-08-02 14:38 UTC by Lars Hartmann
Modified: 2007-08-24 22:22 UTC (History)
2 users (show)

See Also:
Package list:
Runtime testing required: ---


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Description Lars Hartmann 2007-08-02 14:38:16 UTC
A weakness has been reported in Dovecot, which can be exploited by malicious users to bypass certain security restrictions.

The weakness is caused due to an error within the handling of the "i" (insert) right in the ACL plugin, which can be exploited to save certain other flags (e.g. seen or deleted) via the APPEND or COPY commands without having the proper permissions.

The weakness is reported in versions prior to 1.0.3. Other versions may be also affected.

Solution:
Update to version 1.0.3.

Provided and/or discovered by:
Reported by the vendor.

Original Advisory:
http://www.dovecot.org/list/dovecot-news/2007-August/000048.html

Reproducible: Always
Comment 1 Lars Hartmann 2007-08-02 14:41:07 UTC
maintainers - please advice and patch as necessary
Comment 2 Roy Marples (RETIRED) gentoo-dev 2007-08-02 16:19:01 UTC
What can I say? I put 1.0.3 in the tree days ago :P
Comment 3 Jonathan Smith (RETIRED) gentoo-dev 2007-08-08 20:58:08 UTC
======================================================
Name: CVE-2007-4211
Status: Candidate
URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4211
Reference: MLIST:[dovecot-news] 20070801 v1.0.3 released
Reference: URL:http://www.dovecot.org/list/dovecot-news/2007-August/000048.html
Reference: BID:25182
Reference: URL:http://www.securityfocus.com/bid/25182
Reference: SECUNIA:26320
Reference: URL:http://secunia.com/advisories/26320
Reference: XF:dovecot-aclplugin-security-bypass(35767)
Reference: URL:http://xforce.iss.net/xforce/xfdb/35767

The ACL plugin in Dovecot before 1.0.3 allows remote authenticated
users with the insert right to save certain flags via a (1) COPY or
(2) APPEND command.
Comment 4 Pierre-Yves Rofes (RETIRED) gentoo-dev 2007-08-23 12:32:17 UTC
Thanks Roy.
Arches, please test and mark stable net-mail/dovecot-1.0.3. 
Target keywords are "alpha amd64 ppc sparc x86 ~x86-fbsd"
Comment 5 Gustavo Zacarias (RETIRED) gentoo-dev 2007-08-23 14:01:04 UTC
sparc stable.
Comment 6 Christoph Mende (RETIRED) gentoo-dev 2007-08-23 14:21:16 UTC
amd64 stable
Comment 7 Tobias Scherbaum (RETIRED) gentoo-dev 2007-08-23 14:46:26 UTC
ppc stable
Comment 8 Andrej Kacian (RETIRED) gentoo-dev 2007-08-23 18:26:38 UTC
x86 done
Comment 9 Raúl Porcel (RETIRED) gentoo-dev 2007-08-24 17:10:26 UTC
alpha stable
Comment 10 Sune Kloppenborg Jeppesen (RETIRED) gentoo-dev 2007-08-24 19:33:00 UTC
I vote NO.
Comment 11 Pierre-Yves Rofes (RETIRED) gentoo-dev 2007-08-24 22:22:03 UTC
voting NO too and closing without GLSA.