Information disclosure in Tgstation Tgstation-Server
CVE-2023-34243
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.
Vulnerability class: Information Disclosure
EPSS: 0.005 (38.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N.
Affected products
- Tgstation Tgstation-server — versions >= 4.0.0, < 5.12.5
- Tgstation13 Tgstation-server
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
Frequently asked questions
- What is CVE-2023-34243?
- CVE-2023-34243 is a medium-severity vulnerability in Tgstation Tgstation-Server, classified under Information Disclosure. CVSS score: 5.8/10. Published 2023-06-08.
- How severe is CVE-2023-34243?
- Medium severity. CVSS v3 base score is 5.8 out of 10.