PT-2023-24767 · Tgstation · Tgstation

Craftxbox · Published 2023-06-08 · Updated 2023-06-15 · CVE-2023-34243

Positive Technologies (AI Summary)

CVSS v3.1

5.8

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions TGstation versions prior to 5.12.5

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.

Recommendations For versions prior to 5.12.5, upgrade to version 5.12.5 to resolve the issue. As a temporary workaround for users unable to upgrade, consider rate-limiting API calls with software that sits in front of TGS in the HTTP pipeline, such as fail2ban.

Exploit

Fix

Improper Restriction of Excessive Authentication Attempts

Information Disclosure

Weakness Enumeration

CWE-307

CWE-200

Related Identifiers

CVE-2023-34243

GHSA-W3JX-4X93-76PH

Affected Products

Tgstation

References · 7

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/34xxx/CVE-2023-34243.json · Exploit
• https://github.com/tgstation/tgstation-server/security/advisories/GHSA-w3jx-4x93-76ph · Vendor Advisory
• https://github.com/tgstation/tgstation-server/pull/1526 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-34243 · Security Note
• https://osv.dev/vulnerability/CVE-2023-34243 · Vendor Advisory
• https://t.me/cvenotify/52011 · Telegram Post
• https://t.me/cibsecurity/65084 · Telegram Post