alert http any any -> $HOME_NET any (
msg:"ET WEB_SPECIFIC_APPS D-Link switch_language.cgi language Parameter Buffer Overflow (CVE-2025-7206)";
flow:established,to_server;
http.method;
content:"POST";
http.uri; bsize:20;
content:"/switch_language.cgi"; fast_pattern;
http.request_body;
content:"language|3d|";
pcre:"/^[^&]{100,}(?:&|$)/R";
reference:url,github.com/i-Corner/cve/issues/2;
reference:cve,2025-7206;
classtype:web-application-attack;
sid:2063370; rev:1;
metadata:affected_product D_Link, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_07_09, cve CVE_2025_7206, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, updated_at 2025_07_09, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
target:dest_ip;
)