Cyber Risks · Cisco Talos

Vulnerability Spotlight: Memory corruption, DoS vulnerabilities in CoTURN

Summary: Cisco Talos's Aleksandar Nikolic discovered denial-of-service and memory corruption vulnerabilities in CoTURN 4.5.1.1's web server, which parses POST requests. A specially crafted HTTP POST can crash the server, while a crafted HTTPS POST can trigger a heap overflow leading to information leaks and other misbehavior; CoTURN has released an update, and Quarkslab independently reported the same issues.

Bottom line: CoTURN is a general-purpose TURN server and gateway, so a crash or heap overflow in its admin web server sits on a path that may be reachable by anyone who can send it a request.

Read the original at Cisco Talos ↗

Topics
Vulnerabilities & Patching
Mentions
CVE-2020-6062
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