ET WEB_SPECIFIC_APPS Linksys WPS PIN Parameter Command Injection Attempt (CVE-2025-5438)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri; bsize:11;
content:"/goform/WPS"; fast_pattern;
http.request_body;
content:"PIN|3d|";
pcre:"/^[^\x26]*?(?:(?:\x3b|%3[Bb])|(?:\x0a|%0[Aa])|(?:\x60|%60)|(?:\x7c|%7[Cc])|(?:\x24|%24))+/R";
Raw source ET WEB_SPECIFIC_APPS Linksys WPS PIN Parameter Command Injection Attempt (CVE-2025-5438) · 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_SPECIFIC_APPS Linksys WPS PIN Parameter Command Injection Attempt (CVE-2025-5438)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri; bsize:11;
    content:"/goform/WPS"; fast_pattern;
    http.request_body;
    content:"PIN|3d|";
    pcre:"/^[^\x26]*?(?:(?:\x3b|%3[Bb])|(?:\x0a|%0[Aa])|(?:\x60|%60)|(?:\x7c|%7[Cc])|(?:\x24|%24))+/R";
    reference:cve,2025-5438;
    reference:url,github.com/wudipjq/my_vuln/blob/main/Linksys/vuln_1/1.md;
    classtype:attempted-admin;
    sid:2062707; rev:1;
    metadata:affected_product Linksys, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_06_02, cve CVE_2025_5438, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, updated_at 2025_06_02, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
)

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