Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2013-6171

Severity CVSS v4.0:
Pending analysis
Type:
CWE-287 Authentication Issues
Publication date:
09/12/2013
Last modified:
11/04/2025

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.

Impact

Vector 2.0
AV:N/AC:M/Au:N/C:P/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 5.80 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): None

Base Score 2.0
5.80
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:* 2.2.6 (including)
cpe:2.3:a:dovecot:dovecot:2.0:beta1:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:2.0.3:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:2.0.4:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:2.0.5:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:2.0.6:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:2.0.7:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:2.0.8:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:2.0.9:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:2.0.10:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:2.0.11:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:2.0.12:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools