Vulnerability · Published Jun 8, 2023 · Assigned by GitHub_M
CVE-2023-34243Windows user name disclosure in TGstation
Medium 5.8
In plain English
A medium-severity information exposure 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 40% of all known vulnerabilities).
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| tgstation | tgstation-server | >= 4.0.0, < 5.12.5 |
Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
References
- https://github.com/tgstation/tgstation-server/security/advisories/GHSA-w3jx-4x93-76ph x_refsource_CONFIRM
- https://github.com/tgstation/tgstation-server/pull/1526 x_refsource_MISC