CVE-2023-34243
In affected versions if a Windows user was registered in tgstation-server (TGS), an attacker could discover their username by brute-forcing the login endpoint with an invalid password.
Does this matter?
Lower severity and a low EPSS score (0.46%). Track it; it rarely justifies an emergency change on its own.
Description
TGstation is a toolset to manage production BYOND servers. In affected versions if a Windows user was registered in tgstation-server (TGS), an attacker could discover their username by brute-forcing the login endpoint with an invalid password. When a valid Windows logon was found, a distinct response would be generated. This issue has been addressed in version 5.12.5. Users are advised to upgrade. Users unable to upgrade may be mitigated by rate-limiting API calls with software that sits in front of TGS in the HTTP pipeline such as fail2ban.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 0.46% probability · 39th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200, CWE-307
- Affected
- tgstation13/tgstation-server
- Source
- security-advisories@github.com
References
- https://github.com/tgstation/tgstation-server/pull/1526Issue Tracking, Patch
- https://github.com/tgstation/tgstation-server/security/advisories/GHSA-w3jx-4x93-76phMitigation, Vendor Advisory
- https://github.com/tgstation/tgstation-server/pull/1526Issue Tracking, Patch
- https://github.com/tgstation/tgstation-server/security/advisories/GHSA-w3jx-4x93-76phMitigation, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.