Vulnerability · Published Jan 6, 2025 · Assigned by GitHub_M

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

High 8.8

In plain English

A high-severity security flaw in tgstation-server from tgstation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.5%top 58.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
tgstation	tgstation-server	>= 6.11.0, < 6.12.3

Weakness: CWE-285 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

https://github.com/tgstation/tgstation-server/security/advisories/GHSA-rf5r-q276-vrc4 x_refsource_CONFIRM
https://github.com/tgstation/tgstation-server/issues/2064 x_refsource_MISC
https://github.com/tgstation/tgstation-server/commit/e7b1189620baaf03c2d23f6e164d07c7c7d87d57 x_refsource_MISC