68515 : Dovecot plugins/acl/acl-backend-vfile.c ACL Permission Addition Specific Entry Order Mailbox Access Restriction Remote Bypass
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Disclosure Date


Dovecot contains a flaw related to 'plugins/acl/acl-backend-vfile.c' interpreting a less specific ACL permissions entry of the same type as a previous more specific ACL entry as an addition rather than a replacement. This may allow a remote authenticated attacker to use a request to read or modify a mailbox to bypass intended access restrictions.


Location: Remote / Network Access
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Upgrade
Exploit: Exploit Unknown
Disclosure: Vendor Verified
OSVDB: Authentication Required


Upgrade to version 1.2.15, 2.0.5 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.


Timo Sirainen



CVSSv2 Score

CVSSv2 Base Score = 5.5
Source: nvd.nist.gov | Generated: 2010-10-07 | Disagree?

Access_vector_2 Access_complexity_2 Authentication_1 Confidentiality_impact_1 Integrity_impact_1 Availability_impact_0


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