ET WEB_SPECIFIC_APPS Wavlink WN530H4 live_api.cgi ip Parameter Command Injection Attempt (CVE-2020-12124)

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS Wavlink WN530H4 live_api.cgi ip Parameter Command Injection Attempt (CVE-2020-12124)";
    flow:established,to_server;
    http.request_line;
    content:"GET /cgi-bin/live_api.cgi?"; startswith; fast_pattern;
    content:"ip="; distance:0;
    pcre:"/^.{0,10}(?:\x60|\x24\x28|\x3b|%60|%3[bB]|%24%28)/R";
    reference:cve,2020-12124;
    reference:url,github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-12124.yaml;
    classtype:attempted-admin;
    sid:2056379; rev:1;
    metadata:affected_product Wavlink, attack_target Networking_Equipment, tls_state plaintext, created_at 2024_10_01, cve CVE_2020_12124, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_10_01, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)