CVE-2022-30550 Privilege escalation in n/a
Incorrect application of username_filter settings in Dovecot passdb configurations can allow privilege escalation when duplicate driver entries exist.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-30550?
CVE-2022-30550 is a high-severity vulnerability in Debian Debian Linux, published on 17 Jul 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-287
Which versions are affected by CVE-2022-30550?
It affects 2 products.
Linux distribution packages (40)
dovecot AlmaLinux:8 | All versions | 1:2.3.16-3.el8 |
dovecot-devel AlmaLinux:8 | All versions | 1:2.3.16-3.el8 |
dovecot-mysql AlmaLinux:8 | All versions | 1:2.3.16-3.el8 |
dovecot-pgsql AlmaLinux:8 | All versions | 1:2.3.16-3.el8 |
dovecot-pigeonhole AlmaLinux:8 | All versions | 1:2.3.16-3.el8 |
dovecot AlmaLinux:9 | All versions | 1:2.3.16-7.el9 |
dovecot-devel AlmaLinux:9 | All versions | 1:2.3.16-7.el9 |
dovecot-mysql AlmaLinux:9 | All versions | 1:2.3.16-7.el9 |
dovecot-pgsql AlmaLinux:9 | All versions | 1:2.3.16-7.el9 |
dovecot-pigeonhole AlmaLinux:9 | All versions | 1:2.3.16-7.el9 |
dovecot Red Hat:enterprise_linux:8::appstream | All versions | 1:2.3.16-3.el8 |
dovecot-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 1:2.3.16-3.el8 |
dovecot-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 1:2.3.16-3.el8 |
dovecot-mysql Red Hat:enterprise_linux:8::appstream | All versions | 1:2.3.16-3.el8 |
dovecot-mysql-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 1:2.3.16-3.el8 |
dovecot-pgsql Red Hat:enterprise_linux:8::appstream | All versions | 1:2.3.16-3.el8 |
dovecot-pgsql-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 1:2.3.16-3.el8 |
dovecot-pigeonhole Red Hat:enterprise_linux:8::appstream | All versions | 1:2.3.16-3.el8 |
dovecot-pigeonhole-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 1:2.3.16-3.el8 |
dovecot Red Hat:enterprise_linux:8::crb | All versions | 1:2.3.16-3.el8 |
dovecot-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 1:2.3.16-3.el8 |
dovecot-debugsource Red Hat:enterprise_linux:8::crb | All versions | 1:2.3.16-3.el8 |
dovecot-devel Red Hat:enterprise_linux:8::crb | All versions | 1:2.3.16-3.el8 |
dovecot-mysql-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 1:2.3.16-3.el8 |
dovecot-pgsql-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 1:2.3.16-3.el8 |
dovecot-pigeonhole-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 1:2.3.16-3.el8 |
dovecot Red Hat:enterprise_linux:9::appstream | All versions | 1:2.3.16-7.el9 |
dovecot-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 1:2.3.16-7.el9 |
dovecot-debugsource Red Hat:enterprise_linux:9::appstream | All versions | 1:2.3.16-7.el9 |
dovecot-mysql Red Hat:enterprise_linux:9::appstream | All versions | 1:2.3.16-7.el9 |
dovecot-mysql-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 1:2.3.16-7.el9 |
dovecot-pgsql Red Hat:enterprise_linux:9::appstream | All versions | 1:2.3.16-7.el9 |
dovecot-pgsql-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 1:2.3.16-7.el9 |
dovecot-pigeonhole Red Hat:enterprise_linux:9::appstream | All versions | 1:2.3.16-7.el9 |
dovecot-pigeonhole-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 1:2.3.16-7.el9 |
dovecot Red Hat:enterprise_linux:9::crb | All versions | 1:2.3.16-7.el9 |
dovecot-debuginfo Red Hat:enterprise_linux:9::crb | All versions | 1:2.3.16-7.el9 |
dovecot-debugsource Red Hat:enterprise_linux:9::crb | All versions | 1:2.3.16-7.el9 |
dovecot-devel Red Hat:enterprise_linux:9::crb | All versions | 1:2.3.16-7.el9 |
dovecot-mysql-debuginfo Red Hat:enterprise_linux:9::crb | All versions | 1:2.3.16-7.el9 |
Products include Debian Debian Linux, Dovecot Dovecot.
How do I fix CVE-2022-30550?
Upgrade to a fixed version.
Is CVE-2022-30550 being exploited?
There is no known exploitation of CVE-2022-30550 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALPINE-CVE-2022-30550, ALSA-2022:7623, ALSA-2022:8208, AZL-10311, AZL-44649, CLSA-2022-1659635856 and 15 more.