alert http any any -> $HOME_NET any (msg:"ET EXPLOIT TP-Link TL-WR840N/TL-WR841N - Authentication Bypass (Add Port Forwarding)"; flow:established,to_server; http.uri; content:"/cgi?3"; endswith; http.header; content:"/mainFrame.htm"; http.request_body; content:"IP_CONN_PORTTRIGGERING"; content:"openProtocol"; content:"openPort="; reference:url,exploit-db.com/exploits/44781/; classtype:attempted-user; sid:2025750; rev:4; metadata:affected_product TPLINK, created_at 2018_06_26, deployment Perimeter, deployment Internal, deployment Datacenter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_16, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)