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CVE-2022-30550

8.8 · HIGH

An issue was discovered in the auth component in Dovecot 2.2 and 2.3 before 2.3.20.

Published Jul 17, 2022CWE-287EPSS 2.29%

Overview

CVE-2022-30550 is a high-severity vulnerability. It was published on July 17, 2022 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refdovecot.org/securityReflists.debian.org/debian-lts-announce/2022/09/msg00032.htmlRefsecurity.gentoo.org/glsa/202310-19Refwww.dovecot.org/download/Refwww.openwall.com/lists/oss-security/2022/07/08/1Refdovecot.org/securityReflists.debian.org/debian-lts-announce/2022/09/msg00032.htmlRefsecurity.gentoo.org/glsa/202310-19Refwww.dovecot.org/download/Refwww.openwall.com/lists/oss-security/2022/07/08/1

How CyberStrike helps

Frequently asked questions

What is CVE-2022-30550?

CVE-2022-30550 is a high-severity vulnerability. It was published on July 17, 2022 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2022-30550?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-30550?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-30550?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-30550 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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