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OpenAdvisories
Medium · 5.8 CVE-2023-34243 EUVD-2023-38330

Windows user name disclosure in TGstation

Published Jun 8, 2023 · Updated Jan 6, 2025 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
tgstation tgstation-server >= 4.0.0, < 5.12.5 —

References