ET WEB_SPECIFIC_APPS pfSense CE 2.7.0 gfif Parameter Remote Code Execution Attempt (CVE-2023-42326) M2

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS pfSense CE 2.7.0 gfif Parameter Remote Code Execution Attempt (CVE-2023-42326) M2";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/interfaces_gre_edit.php"; fast_pattern;
    http.request_body;
    content:"__csrf_magic|3d|"; startswith;
    content:"greif|3d|";
    content:"|3b|"; distance:0; within:50;
    reference:url,www.sonarsource.com/blog/pfsense-vulnerabilities-sonarcloud/;
    reference:cve,2023-42326;
    classtype:attempted-admin;
    sid:2049665; rev:1;
    metadata:attack_target Networking_Equipment, created_at 2023_12_12, cve CVE_2023_42326, deployment Perimeter, deployment Internal, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_12_12, reviewed_at 2024_10_03, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)