CRLF-Powered Desync Lets Attackers Poison CDN Cache and Serve XSS to Live Users

A limited CRLF injection flaw can be escalated into a severe HTTP desynchronization attack, poisoning CDN caches and delivering XSS payloads to users on legitimate websites. The attack, called CRLF-Powered Desync, begins when an application incorrectly handles encoded carriage return and line feed characters, commonly represented as %0d%0a. These characters mark new lines in HTTP messages. […] The post CRLF-Powered Desync Lets Attackers Poison CDN Cache and Serve XSS to Live Users appeared first on Cyber Security News.