CVE-2022-31138 Information

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.

Reference

https://github.com/ly1g3/Mailcow-CVE-2022-31138 https://github.com/mailcow/mailcow-dockerized/releases/tag/2022-06a https://github.com/mailcow/mailcow-dockerized/security/advisories/GHSA-vx9w-h33p-5vhc https://github.com/mailcow/mailcow-dockerized/commit/d373164e13a14e058f82c9f1918a5612f375a9f9