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CVE-2022-31138

8.8 · HIGH

mailcow is a mailserver suite.

Published Jul 11, 2022CWE-78EPSS 3.25%

Overview

CVE-2022-31138 is a high-severity vulnerability. It was published on July 11, 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

mailcow is a mailserver suite. Prior to mailcow-dockerized version 2022-06a, an extended privilege vulnerability can be exploited by manipulating the custom parameters regexmess, skipmess, regexflag, delete2foldersonly, delete2foldersbutnot, regextrans2, pipemess, or maxlinelengthcmd to execute arbitrary code. Users should update their mailcow instances with the `update.sh` script in the mailcow root directory to 2022-06a or newer to receive a patch for this issue. As a temporary workaround, the Syncjob ACL can be removed from all mailbox users, preventing changes to those settings.

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

GitHubgithub.com/ly1g3/Mailcow-CVE-2022-31138GitHubgithub.com/mailcow/mailcow-dockerized/commit/d373164e13a14e058f82c9f1918a5612f375a9f9GitHubgithub.com/mailcow/mailcow-dockerized/releases/tag/2022-06aGitHubgithub.com/mailcow/mailcow-dockerized/security/advisories/GHSA-vx9w-h33p-5vhcGitHubgithub.com/ly1g3/Mailcow-CVE-2022-31138GitHubgithub.com/mailcow/mailcow-dockerized/commit/d373164e13a14e058f82c9f1918a5612f375a9f9GitHubgithub.com/mailcow/mailcow-dockerized/releases/tag/2022-06aGitHubgithub.com/mailcow/mailcow-dockerized/security/advisories/GHSA-vx9w-h33p-5vhc

How CyberStrike helps

Frequently asked questions

What is CVE-2022-31138?

CVE-2022-31138 is a high-severity vulnerability. It was published on July 11, 2022 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2022-31138?

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-2022-31138?

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-2022-31138?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-31138 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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