CVE-2025-21611 HIGH

CVE-2025-21611: tgstation-server's role authorization incorrectly OR'd with user's enabled status

Vendor Tgstation
Product tgstation-server
Weakness CWE-285
Published January 6, 2025
Last update January 6, 2025

CVSS base score

8.8/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

tgstation-server is a production scale tool for BYOND server management. Prior to 6.12.3, roles used to authorize API methods were incorrectly OR'd instead of AND'ed with the role used to determine if a user was enabled. This allows enabled users access to most, but not all, authorized actions regardless of their permissions. Notably, the WriteUsers right is unaffected so users may not use this bug to permanently elevate their account permissions. The fix is release in tgstation-server-v6.12.3.

Key dates

02Disclosure timeline

January 6, 2025 CVE published
January 6, 2025 Record updated