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.
References
Link | Resource |
---|---|
https://dovecot.org/security | Vendor Advisory |
https://lists.debian.org/debian-lts-announce/2022/09/msg00032.html | Mailing List Third Party Advisory |
https://security.gentoo.org/glsa/202310-19 | Third Party Advisory |
https://www.dovecot.org/download/ | Product |
https://www.openwall.com/lists/oss-security/2022/07/08/1 | Mailing List Patch Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2022-07-17T00:00:00
Updated: 2023-10-30T11:06:19.441543
Reserved: 2022-05-11T00:00:00
Link: CVE-2022-30550
JSON object: View
NVD Information
Status : Analyzed
Published: 2022-07-17T19:15:18.540
Modified: 2024-01-12T20:47:18.010
Link: CVE-2022-30550
JSON object: View
Redhat Information
No data.
CWE