alert http any any -> $HOME_NET any (
msg:"ET WEB_SPECIFIC_APPS Tenda PPTPUserSetting delno Parameter Buffer Overflow Attempt (CVE-2025-13288)";
flow:established,to_server;
http.method;
content:"POST";
http.uri; bsize:23;
content:"/goform/PPTPUserSetting"; fast_pattern;
http.request_body;
content:"delno|3d|";
pcre:"/^[^&]{100,}(?:&|$)/R";
reference:url,github.com/yyyy1g/CVE/issues/1;
reference:cve,2025-13288;
classtype:web-application-attack;
sid:2065797; rev:1;
metadata:affected_product Tenda, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_11_17, cve CVE_2025_13288, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_11_17, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
target:dest_ip;
)