ET WEB_SERVER SonicWall SMA Post-Auth sitecustomization CGI Command Injection

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SERVER SonicWall SMA Post-Auth sitecustomization CGI Command Injection";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/cgi-bin/sitecustomization"; fast_pattern;
    http.request_body;
    content:"portalname|3d|";
    pcre:"/^[^\x26]*?[\x21\x24\x5c\x28\x29\x2a\x2c\x2d\x2e\x3d\x40\x5b\x5d\x5e\x5f\x7b\x7d\x7e]/R";
    reference:url,ssd-disclosure.com/ssd-advisory-sonicwall-sma100-stored-xss-to-rce/;
    classtype:web-application-attack;
    sid:2061631; rev:1;
    metadata:affected_product SonicWall, attack_target Server, tls_state TLSDecrypt, created_at 2025_04_16, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, updated_at 2025_04_16, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)