CVE-2022-30550

 

Published at: - 17-07-2022 09:15

Last modified: - 28-09-2022 01:15

Total changes: - 4

Description

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

• https://www.openwall.com/lists/oss-security/2022/07/08/1
• https://dovecot.org/security
• https://www.dovecot.org/download/
• [debian-lts-announce] 20220927 [SECURITY] [DLA 3122-1] dovecot security update-

 

Keywords

NVD

 

CVE-2022-30550

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures