ET WEB_SPECIFIC_APPS SonicWall SonicOS Unauthenticated Stack-Based Buffer Overflow (CVE-2023-0656) M2

alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS SonicWall SonicOS Unauthenticated Stack-Based Buffer Overflow (CVE-2023-0656) M2";
    flow:established,to_server;
    urilen:>1024;
    http.uri;
    content:"/Security_Services"; startswith;
    http.protocol; bsize:>8;
    reference:url,github.com/BishopFox/CVE-2022-22274_CVE-2023-0656;
    reference:cve,2023-0656;
    classtype:attempted-dos;
    sid:2061256; rev:1;
    metadata:affected_product SonicWall, attack_target Server, tls_state TLSDecrypt, created_at 2025_04_02, cve CVE_2023_0656, deployment Perimeter, deployment Internal, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Exploit, updated_at 2025_04_02, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)