alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS TrendNet formWsc peerPin Parameter Command Injection Attempt (CVE-2025-15139)"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:15; content:"/boafrm/formWsc"; http.request_body; content:"wizard_wps_ap.htm"; fast_pattern; content:"peerPin|3d|"; pcre:"/^[^\x26]*?(?:(?:\x3b|%3[Bb])|(?:\x0a|%0[Aa])|(?:\x60|%60)|(?:\x7c|%7[Cc])|(?:\x24|%24))+/R"; reference:url,pentagonal-time-3a7.notion.site/TRENDnet-TEW-822DRE-Command-Injection-2c9e5dd4c5a580f190e9c411ad627e9a; reference:cve,2025-15139; classtype:attempted-admin; sid:2066750; rev:1; metadata:affected_product TrendNet, attack_target Networking_Equipment, tls_state plaintext, created_at 2026_01_14, cve CVE_2025_15139, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_01_14, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)