Vulnerability Spotlight: Multiple vulnerabilities in coTURN
Summary: Cisco Talos disclosed three vulnerabilities in coTURN, an open-source TURN and STUN server implementation typically deployed in internet-reachable DMZ zones, and worked with coTURN to resolve them and release an update. The flaws include an SQL injection in the administrator web portal (CVE-2018-4056) that can bypass authentication, an unsafe default allowing relay of external traffic to the host's loopback interface (CVE-2018-4058), and an unauthenticated telnet admin portal running on the loopback interface by default (CVE-2018-4059); all versions prior to 4.5.0.9 are affected.
Key Takeaway: These are default-configuration flaws in a server class built to sit in the DMZ and accept traffic from the internet, and the loopback relay and unauthenticated telnet portal can expose other private services on the same host to an attacker who reaches the TURN server.
Read the original at Cisco Talos ↗
- Topics
- Vulnerabilities & Patching
- Mentions
- CVE-2018-4056CVE-2018-4058CVE-2018-4059
- Related
- Attackers Exploit UnrealIRCd Flaw That Enables Server-Level Command Injection Cyber Risks · Nov 14, 2026U.S. CISA adds Check Point and UnrealIRCd flaws to its Known Exploited Vulnerabilities catalog Cyber Risks · Nov 14, 2026PostgreSQL Patches 52 Flaws, Including 22-Year-Old Bug Enabling Authenticated RCE Cyber Risks · Nov 13, 2026