Headline
CVE-2023-26490: Release 💮🐮 Moorch 2023 Update - ⚠️ CVE-2023-26490 ⚠️ and some fixes · mailcow/mailcow-dockerized
mailcow is a dockerized email package, with multiple containers linked in one bridged network. The Sync Job feature - which can be made available to standard users by assigning them the necessary permission - suffers from a shell command injection. A malicious user can abuse this vulnerability to obtain shell access to the Docker container running dovecot. The imapsync Perl script implements all the necessary functionality for this feature, including the XOAUTH2 authentication mechanism. This code path creates a shell command to call openssl. However, since different parts of the specified user password are included without any validation, one can simply execute additional shell commands. Notably, the default ACL for a newly-created mailcow account does not include the necessary permission. The Issue has been fixed within the 2023-03 Update (March 3rd 2023). As a temporary workaround the Syncjob ACL can be removed from all mailbox users, preventing from creating or changing existing Syncjobs.
⚠️ Security Update!!! This update is fixing CVE-2023-26490 please patch very soon!!!
What’s Changed
- [Imapsync] Use pure perl code for XOAUTH2 authmech (CVE-2023-26490) by @FreddleSpl0it in 04e46f9
- Update dependency nextcloud/server to v25.0.4 by @renovate in #5089
- Translations update from Weblate by @milkmaker in #5092
- Add raw attribute for lang.admin.hash_remove_info by @MAGICCC in #5098
- Translations update from Weblate by @milkmaker in #5102
- fix URLHAUS_ABUSE_CH check by @rekup in #5097
- Fix cursor style when hovering ‘Aliases’ tab by @kritzl in #5085
- [Helper] Update expiry-dates.sh by @svengo in #5104
- General Update for all container images (OS Updates inside the containers)
New Contributors
- @rekup made their first contribution in #5097
- @kritzl made their first contribution in #5085
Full Changelog: 2023-02a…2023-03
Security Advisory for CVE-2023-26490: GHSA-3j2f-wf52-cjg7