alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Totolink setWifiWpsConfig PIN Parameter Command Injection Attempt (CVE-2026-9534)"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:20; content:"/cgi-bin/cstecgi.cgi"; http.request_body; content:"|22|topicurl|22|"; content:"|22|setting/setWifiWpsConfig|22|"; fast_pattern; within:31; content:"|22|PIN|22|"; pcre:"/^(?:\x3a(?:\x20\x22|\x22))?[^\x2c\x7d$]*?(?:(?:\x3b|%3[Bb])|(?:\x0a|%0[Aa])|(?:\x60|%60)|(?:\x7c|%7[Cc])|(?:\x24|%24))+/R"; reference:url,github.com/wudipjq/my_vuln/blob/main/totolink4/vuln_57/57.md; reference:cve,2026-9534; classtype:attempted-admin; sid:2070002; rev:1; metadata:affected_product TOTOLINK, attack_target Networking_Equipment, tls_state plaintext, created_at 2026_06_18, cve CVE_2026_9534, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, updated_at 2026_06_18, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)