Auth bypass in Dovecot
CVE-2008-4577
The ACL plugin in Dovecot before 1.1.4 treats negative access rights as if they are positive access rights, which allows attackers to bypass intended access restrictions.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.023 (82.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000
Affected products
- Dovecot
- Canonical Ubuntu Linux — versions 8.04, 8.10, 9.04
- Fedoraproject Fedora — versions 8, 9
- openSUSE — versions 10.3-11.1
Weakness classification (CWE)
References
- secunia.com/advisories/32164 (Broken Link, Vendor Advisory, third-party-advisory)
- secunia.com/advisories/32471 (Broken Link, third-party-advisory)
- secunia.com/advisories/33149 (Broken Link, third-party-advisory)
- www.vupen.com/english/advisories/2008/2745 (Permissions Required, vdb-entry)
- www.redhat.com/archives/fedora-package-announce/2008-October/msg00816.html (vendor-advisory, Mailing List)
- oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:10376 (Broken Link, signature, vdb-entry)
- www.securityfocus.com/bid/31587 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- www.redhat.com/archives/fedora-package-announce/2008-October/msg00844.html (vendor-advisory, Mailing List)
- www.mandriva.com/security/advisories (vendor-advisory, Broken Link)
- www.ubuntu.com/usn/USN-838-1 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2008-4577?
- CVE-2008-4577 is a high-severity vulnerability in Dovecot, classified under Incorrect Authorization. CVSS score: 7.5/10. Published 2008-10-15.
- How severe is CVE-2008-4577?
- High severity. CVSS v3 base score is 7.5 out of 10.