PT-2013-5957 · Dovecot+1 · Dovecot+1

Published 2013-11-28 · Updated 2018-03-16 · CVE-2013-6171

Positive Technologies (AI Summary)

CVSS v2.0

5.8

Medium

Base vector

AV:N/AC:M/Au:N/C:P/I:P/A:N

Name of the Vulnerable Software and Affected Versions Dovecot versions prior to 2.2.7

Description The issue allows local users to bypass authentication and access virtual email accounts. This is achieved by attaching to the process and using a restricted file descriptor to modify account information in the response to the dovecot-auth server. The checkpassword-reply in Dovecot performs setuid operations to a user who is authenticating.

Recommendations For versions prior to 2.2.7, update to version 2.2.7 or later to resolve the issue. As a temporary workaround, consider restricting access to the checkpassword-reply functionality until a patch is available.

Fix

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

ALT-PU-2013-1205

CVE-2013-6171

USN-3556-2

Affected Products

Alt Linux

Dovecot

References · 16

• https://usn.ubuntu.com/3556-2 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2013-6171 · Security Note
• https://ubuntu.com/security/notices/USN-3556-2 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2013-6171 · Security Note
• https://ubuntu.com/security/CVE-2013-6171 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2013-6171 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2013-6171 · Vendor Advisory
• http://dovecot.org/list/dovecot-news/2013-November/000264.html · Patch
• https://osv.dev/vulnerability/CVE-2013-6171 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-6171 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2013-6171 · Vendor Advisory
• http://secunia.com/advisories/54808 · Vendor Advisory
• https://errata.altlinux.org/ALT-PU-2013-1205 · Vendor Advisory
• https://packages.altlinux.org/ru/vuln/CVE-2013-6171 · Note
• http://wiki2.dovecot.org/AuthDatabase/CheckPassword#Security · Note