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.
*CVSS:
| Base Score: | 7 |
| Access Vector: | Remote |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 5.2 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Bypass Security
Remedy:
Upgrade to the latest version of Dovecot (1.0.3 or later), available from the Dovecot Web site. See References.
References:
- Dovecot Web site: NEWS.
- Dovecot-news mailing list, Wed Aug 1 13:22:59 EEST 2007: v1.0.3 released (security bypass).
- 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
Platforms Affected:
- Dovecot Dovecot prior to 1.0.3
- RedHat Enterprise Linux 5 Client Workstation
- RedHat Enterprise Linux 5
Reported:
Aug 01, 2007
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.