ET WEB_SPECIFIC_APPS Tenda SetFirewallCfg firewallEn Parameter Buffer Overflow Attempt (CVE-2025-8810, CVE-2025-29358, CVE-2025-1851, CVE-2024-2809)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri; bsize:22;
content:"/goform/SetFirewallCfg"; fast_pattern;
http.request_body;
content:"firewallEn|3d|";
pcre:"/^[^&]{100,}(?:&|$)/R";
target:dest_ip;
Raw source ET WEB_SPECIFIC_APPS Tenda SetFirewallCfg firewallEn Parameter Buffer Overflow Attempt (CVE-2025-8810, CVE-2025-29358, CVE-2025-1851, CVE-2024-2809) · 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 -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS Tenda SetFirewallCfg firewallEn Parameter Buffer Overflow Attempt (CVE-2025-8810, CVE-2025-29358, CVE-2025-1851, CVE-2024-2809)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri; bsize:22;
    content:"/goform/SetFirewallCfg"; fast_pattern;
    http.request_body;
    content:"firewallEn|3d|";
    pcre:"/^[^&]{100,}(?:&|$)/R";
    reference:cve,2025-8810;
    reference:url,www.cve.org/CVERecord/SearchResults?query=SetFirewallCfg;
    reference:cve,2025-1851;
    reference:cve,2025-29358;
    reference:url,github.com/peris-navince/founded-0-days/blob/main/Tenda/ac8/formSetFirewallCfg/1.md;
    reference:cve,2024-2809;
    classtype:web-application-attack;
    sid:2065155; rev:1;
    metadata:affected_product Tenda, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_10_10, cve CVE_2025_1851_CVE_2025_8810_CVE_2024_2809_CVE_2025_29358, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_10_10, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)

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