CVE Vulnerability

CVE-2022-30550

An issue was discovered in the auth component in Dovecot 2.2 and 2.3 before 2.3.20. When two passdb configuration entries exist with the same driver and args settings, incorrect username_filter and mechanism settings can be applied to passdb definitions. These incorrectly applied settings can lead to an unintended security configuration and can permit privilege escalation in certain configurations. The documentation does not advise against the use of passdb definitions that have the same driver and args settings. One such configuration would be where an administrator wishes to use the same PAM configuration or passwd file for both normal and master users but use the username_filter setting to restrict which of the users is able to be a master user.

8.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://www.openwall.com/lists/oss-security/2022/07/08/1 Mailing List Patch
https://dovecot.org/security Vendor Advisory
https://www.dovecot.org/download/ Product
https://lists.debian.org/debian-lts-announce/2022/09/msg00032.html Mailing List Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*
cpe:2.3:a:dovecot:dovecot:2.2:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Information

Published : 2022-07-17 07:15

Updated : 2022-10-28 03:17

NVD link : CVE-2022-30550

Mitre link : CVE-2022-30550

Products Affected
No products.
CWE
CWE-287