CVE-2013-6171
First published: Mon Dec 09 2013(Updated: )
checkpassword-reply in Dovecot before 2.2.7 performs setuid operations to a user who is authenticating, which allows local users to bypass authentication and access virtual email accounts by attaching to the process and using a restricted file descriptor to modify account information in the response to the dovecot-auth server.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Dovecot Dovecot | <=2.2.6 | |
| Dovecot Dovecot | =2.0-beta1 | |
| Dovecot Dovecot | =2.0.0 | |
| Dovecot Dovecot | =2.0.1 | |
| Dovecot Dovecot | =2.0.2 | |
| Dovecot Dovecot | =2.0.3 | |
| Dovecot Dovecot | =2.0.4 | |
| Dovecot Dovecot | =2.0.5 | |
| Dovecot Dovecot | =2.0.6 | |
| Dovecot Dovecot | =2.0.7 | |
| Dovecot Dovecot | =2.0.8 | |
| Dovecot Dovecot | =2.0.9 | |
| Dovecot Dovecot | =2.0.10 | |
| Dovecot Dovecot | =2.0.11 | |
| Dovecot Dovecot | =2.0.12 | |
| Dovecot Dovecot | =2.0.13 | |
| Dovecot Dovecot | =2.0.14 | |
| Dovecot Dovecot | =2.0.15 | |
| Dovecot Dovecot | =2.1-rc1 | |
| Dovecot Dovecot | =2.1-rc2 | |
| Dovecot Dovecot | =2.1-rc3 | |
| Dovecot Dovecot | =2.1-rc5 | |
| Dovecot Dovecot | =2.1-rc6 | |
| Dovecot Dovecot | =2.1-rc7 | |
| Dovecot Dovecot | =2.1.0 | |
| Dovecot Dovecot | =2.1.1 | |
| Dovecot Dovecot | =2.1.2 | |
| Dovecot Dovecot | =2.1.3 | |
| Dovecot Dovecot | =2.1.4 | |
| Dovecot Dovecot | =2.1.5 | |
| Dovecot Dovecot | =2.1.6 | |
| Dovecot Dovecot | =2.1.7 | |
| Dovecot Dovecot | =2.1.10 | |
| Dovecot Dovecot | =2.1.11 | |
| Dovecot Dovecot | =2.1.12 | |
| Dovecot Dovecot | =2.1.13 | |
| Dovecot Dovecot | =2.1.14 | |
| Dovecot Dovecot | =2.1.15 | |
| Dovecot Dovecot | =2.2-rc1 | |
| Dovecot Dovecot | =2.2-rc2 | |
| Dovecot Dovecot | =2.2-rc3 | |
| Dovecot Dovecot | =2.2-rc4 | |
| Dovecot Dovecot | =2.2-rc5 | |
| Dovecot Dovecot | =2.2-rc6 | |
| Dovecot Dovecot | =2.2-rc7 | |
| Dovecot Dovecot | =2.2.0 | |
| Dovecot Dovecot | =2.2.1 | |
| Dovecot Dovecot | =2.2.2 | |
| Dovecot Dovecot | =2.2.3 | |
| Dovecot Dovecot | =2.2.4 | |
| Dovecot Dovecot | =2.2.5 | |
| debian/dovecot | 1:2.3.13+dfsg1-2+deb11u1 1:2.3.13+dfsg1-2+deb11u2 1:2.3.19.1+dfsg1-2.1+deb12u1 1:2.3.21.1+dfsg1-1 |
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Reference Links
- http://cpanel.net/tsr-2013-0010-full-disclosure/
- http://secunia.com/advisories/54808
- http://wiki2.dovecot.org/AuthDatabase/CheckPassword#Security
- http://www.dovecot.org/list/dovecot-news/2013-November/000264.html
- https://usn.ubuntu.com/3556-2/
- https://launchpad.net/bugs/cve/CVE-2013-6171
- https://security-tracker.debian.org/tracker/CVE-2013-6171
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-6171
- https://nvd.nist.gov/vuln/detail/CVE-2013-6171
- https://ubuntu.com/security/CVE-2013-6171
Frequently Asked Questions
What is CVE-2013-6171?
CVE-2013-6171 is a vulnerability in Dovecot that allows local users to bypass authentication and access virtual email accounts.
What is the severity of CVE-2013-6171?
The severity of CVE-2013-6171 is medium with a CVSS score of 5.8.
How does CVE-2013-6171 work?
CVE-2013-6171 works by performing setuid operations to a user who is authenticating, allowing local users to modify account information and bypass authentication.
What software versions are affected by CVE-2013-6171?
Dovecot versions up to and including 2.2.6 are affected by CVE-2013-6171.
How can I fix CVE-2013-6171?
To fix CVE-2013-6171, you should update Dovecot to version 2.2.7 or higher.
- collector/nvd-index
- agent/type
- collector/launchpad-cve
- source/Launchpad
- agent/author
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/severity
- agent/weakness
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- collector/security-tracker-debian
- source/Debian
- collector/usn-cve
- source/Ubuntu
- agent/remedy
- agent/references
- agent/tags
- agent/event
- agent/description
- agent/first-publish-date
- agent/softwarecombine
- agent/trending
- vendor/dovecot
- canonical/dovecot dovecot
- version/dovecot dovecot/2.2.6
- version/dovecot dovecot/2.0-beta1
- version/dovecot dovecot/2.0.0
- version/dovecot dovecot/2.0.1
- version/dovecot dovecot/2.0.2
- version/dovecot dovecot/2.0.3
- version/dovecot dovecot/2.0.4
- version/dovecot dovecot/2.0.5
- version/dovecot dovecot/2.0.6
- version/dovecot dovecot/2.0.7
- version/dovecot dovecot/2.0.8
- version/dovecot dovecot/2.0.9
- version/dovecot dovecot/2.0.10
- version/dovecot dovecot/2.0.11
- version/dovecot dovecot/2.0.12
- version/dovecot dovecot/2.0.13
- version/dovecot dovecot/2.0.14
- version/dovecot dovecot/2.0.15
- version/dovecot dovecot/2.1-rc1
- version/dovecot dovecot/2.1-rc2
- version/dovecot dovecot/2.1-rc3
- version/dovecot dovecot/2.1-rc5
- version/dovecot dovecot/2.1-rc6
- version/dovecot dovecot/2.1-rc7
- version/dovecot dovecot/2.1.0
- version/dovecot dovecot/2.1.1
- version/dovecot dovecot/2.1.2
- version/dovecot dovecot/2.1.3
- version/dovecot dovecot/2.1.4
- version/dovecot dovecot/2.1.5
- version/dovecot dovecot/2.1.6
- version/dovecot dovecot/2.1.7
- version/dovecot dovecot/2.1.10
- version/dovecot dovecot/2.1.11
- version/dovecot dovecot/2.1.12
- version/dovecot dovecot/2.1.13
- version/dovecot dovecot/2.1.14
- version/dovecot dovecot/2.1.15
- version/dovecot dovecot/2.2-rc1
- version/dovecot dovecot/2.2-rc2
- version/dovecot dovecot/2.2-rc3
- version/dovecot dovecot/2.2-rc4
- version/dovecot dovecot/2.2-rc5
- version/dovecot dovecot/2.2-rc6
- version/dovecot dovecot/2.2-rc7
- version/dovecot dovecot/2.2.0
- version/dovecot dovecot/2.2.1
- version/dovecot dovecot/2.2.2
- version/dovecot dovecot/2.2.3
- version/dovecot dovecot/2.2.4
- version/dovecot dovecot/2.2.5
- package-manager/debian