CVE-2022-31138
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.29% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Affected
- mailcow/mailcow\
- Source
- security-advisories@github.com
References
- https://github.com/ly1g3/Mailcow-CVE-2022-31138Exploit, Third Party Advisory
- https://github.com/mailcow/mailcow-dockerized/commit/d373164e13a14e058f82c9f1918a5612f375a9f9Patch, Third Party Advisory
- https://github.com/mailcow/mailcow-dockerized/releases/tag/2022-06aRelease Notes, Third Party Advisory
- https://github.com/mailcow/mailcow-dockerized/security/advisories/GHSA-vx9w-h33p-5vhcMitigation, Third Party Advisory
- https://github.com/ly1g3/Mailcow-CVE-2022-31138Exploit, Third Party Advisory
- https://github.com/mailcow/mailcow-dockerized/commit/d373164e13a14e058f82c9f1918a5612f375a9f9Patch, Third Party Advisory
- https://github.com/mailcow/mailcow-dockerized/releases/tag/2022-06aRelease Notes, Third Party Advisory
- https://github.com/mailcow/mailcow-dockerized/security/advisories/GHSA-vx9w-h33p-5vhcMitigation, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.