Dovecot ACL plugin security bypass
| dovecot-aclplugin-security-bypass (35767) |  Medium Risk |
Description:
Dovecot could allow a remote attacker to bypass security restrictions, caused by the improper handling of the "i" (insert) privilege in the ACL plugin. A remote unauthenticated attacker could exploit this vulnerability using the APPEND or COPY commands to bypass security restrictions and save seen, deleted, and other flags.
Platforms Affected:
- Dovecot, Dovecot prior to 1.0.3
- RedHat, Enterprise Linux 5 Client Workstation
- RedHat, Enterprise Linux 5
Remedy:
Upgrade to the latest version of Dovecot (1.0.3 or later), available from the Dovecot Web site. See References.
Consequences:
Bypass Security
References:
- Dovecot Web site, NEWS at http://dovecot.org/doc/NEWS.
- Dovecot-news mailing list, Wed Aug 1 13:22:59 EEST 2007, v1.0.3 released (security bypass) at http://www.dovecot.org/list/dovecot-news/2007-August/000048.html.
- BID-25182: Dovecot ACL Plugin Security Bypass Vulnerability
- CVE-2007-4211: 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.
- RHSA-2008-0297: Low: dovecot security and bug fix update
- SA26320: Dovecot ACL Plugin "i" Right APPEND and COPY Weakness
Reported:
Aug 01, 2007
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