ET WEB_SPECIFIC_APPS D-Link DIR-823G Multiple HNAP SOAPAction Endpoints Authentication Bypass

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS D-Link DIR-823G Multiple HNAP SOAPAction Endpoints Authentication Bypass";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri; bsize:7;
    content:"/HNAP1/";
    http.header;
    content:"SOAPAction|3a 20 22|http|3a 2f 2f|purenetworks.com/HNAP1/Get"; fast_pattern;
    pcre:"/^(?:GuestNetworkSettings|LocalMacAddress|RouterInformationSettings|RouterLanSettings)/R";
    http.header_names;
    content:!"|0d 0a|cookie|0d 0a|"; nocase;
    http.request_body;
    content:"|3c|Get";
    pcre:"/^(?:GuestNetworkSettings|LocalMacAddress|RouterInformationSettings|RouterLanSettings)\x20/R";
    reference:url,lavender-bicycle-a5a.notion.site/CVE-1ab53a41781f804898a0effa45d0f15d;
    classtype:web-application-attack;
    sid:2061623; rev:1;
    metadata:affected_product D_Link, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_04_16, deployment Perimeter, deployment Internal, performance_impact Low, 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;
)