ET EXPLOIT [Rapid7] Zyxel ZTP setWanPortSt mtu Parameter Exploit Attempt (CVE-2022-30525)

alert http any any -> $HOME_NET any (
    msg:"ET EXPLOIT [Rapid7] Zyxel ZTP setWanPortSt mtu Parameter Exploit Attempt (CVE-2022-30525)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/ztp/cgi-bin/handler"; fast_pattern; bsize:20;
    http.request_body;
    content:"setWanPortSt";
    content:"mtu";
    pcre:"/^["']\s*:\s*["']\s*[^0-9]+/Ri";
    reference:cve,2022-30525;
    reference:url,www.rapid7.com/blog/post/2022/05/12/cve-2022-30525-fixed-zyxel-firewall-unauthenticated-remote-command-injection/;
    classtype:misc-attack;
    sid:2036596; rev:2;
    metadata:attack_target Networking_Equipment, created_at 2022_05_16, cve CVE_2022_30525, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_09_30, reviewed_at 2024_09_12;
)