alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS D-Link DCS932L setSystemEmail EmailSMTPPortNumber Buffer Overflow Attempt"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:15; content:"/setSystemEmail"; fast_pattern; http.request_body; content:"EmailSMTPPortNumber|3d|"; pcre:"/^[^\x26$]{100,}(?:\x26|$)/R"; reference:url,github.com/wudipjq/my_vuln/blob/main/D-Link5/vuln_43/43.md; classtype:web-application-attack; sid:2062708; rev:1; metadata:affected_product D_Link, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_06_02, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag AI_Generated_Description, 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; target:dest_ip;)