ET WEB_SERVER SonicWall SRA Post-Auth gencsr CGI Command Injection

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/cgi-bin/gencsr"; fast_pattern;
http.request_body;
content:"key_size|3d|";
pcre:"/^[^\x26\x0d\x0a]*?[\x21\x24\x5c\x28\x29\x2a\x2c\x2d\x2e\x3d\x40\x5b\x5d\x5e\x5f\x7b\x7d\x7e\x3b]/R";
target:dest_ip;
Raw source ET WEB_SERVER SonicWall SRA Post-Auth gencsr CGI Command Injection · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http any any -> $HOME_NET any (
    msg:"ET WEB_SERVER SonicWall SRA Post-Auth gencsr CGI Command Injection";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/cgi-bin/gencsr"; fast_pattern;
    http.request_body;
    content:"key_size|3d|";
    pcre:"/^[^\x26\x0d\x0a]*?[\x21\x24\x5c\x28\x29\x2a\x2c\x2d\x2e\x3d\x40\x5b\x5d\x5e\x5f\x7b\x7d\x7e\x3b]/R";
    reference:url,www.exploit-db.com/exploits/42343;
    classtype:web-application-attack;
    sid:2061550; rev:1;
    metadata:affected_product SonicWall, attack_target Server, tls_state TLSDecrypt, created_at 2025_04_14, deployment Perimeter, deployment Internal, deployment SSLDecrypt, signature_severity Major, tag Exploit, updated_at 2025_04_14, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)

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