CVE-2023-26490

CVSS V2 None CVSS V3 None
Description
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.
Overview
  • CVE ID
  • CVE-2023-26490
  • Assigner
  • security-advisories@github.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2023-03-04T00:15:15
  • Last Modified Date
  • 2023-03-09T20:33:31
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:mailcow:mailcow\:_dockerized:*:*:*:*:*:*:*:* 1 OR 2023-03
History
Created Old Value New Value Data Type Notes
2023-04-17 05:56:19 Added to TrackCVE
2023-04-17 05:56:22 Weakness Enumeration new