68515 : Dovecot plugins/acl/acl-backend-vfile.c ACL Permission Addition Specific Entry Order Mailbox Access Restriction Remote Bypass
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Views This Week Views All Time Added to OSVDB Last Modified Modified (since 2008) Percent Complete
1 927 over 3 years ago over 2 years ago 4 times 100%

Timeline

Disclosure Date
2010-10-02

Description

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.

Classification

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

Solution

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.

Products

Timo Sirainen
Dovecot
2.0.4
1.2.14

References

Credit

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

Comments

No Comments.

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