CVE-2013-6171

Description

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.

Category

5.8
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.24%
Vendor Advisory ubuntu.com Vendor Advisory secunia.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://cpanel.net/tsr-2013-0010-full-disclosure/
http://wiki2.dovecot.org/AuthDatabase/CheckPassword#Security
https://usn.ubuntu.com/3556-2/ vendor advisory
http://secunia.com/advisories/54808 third party advisory vendor advisory
http://www.dovecot.org/list/dovecot-news/2013-November/000264.html mailing list patch

Frequently Asked Questions

What is the severity of CVE-2013-6171?
CVE-2013-6171 has been scored as a medium severity vulnerability.
How to fix CVE-2013-6171?
To fix CVE-2013-6171, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2013-6171 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2013-6171 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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