alert http any any -> $HOME_NET any (
msg:"ET WEB_SPECIFIC_APPS ASUS AiProtection_HomeProtection.asp oauth_google_auth_code Parameter Command Injection Attempt (CVE-2023-39780)";
flow:established,to_server;
http.method;
content:"POST";
http.uri; bsize:16;
content:"/start_apply.htm"; fast_pattern;
http.request_body;
content:"current_page=AiProtection_HomeProtection.asp";
content:"oauth_google_auth_code|3d|";
pcre:"/^(?:\x27|%27).*?(?:(?:\x3b|%3[Bb])|(?:\x0a|%0[Aa])|(?:\x60|%60)|(?:\x7c|%7[Cc])|(?:\x24|%24)|(?:\x26{2}|%26%26))+/R";
reference:url,github.com/D2y6p/CVE/blob/main/asus/CVE-2023-39780/1/EN.md;
reference:cve,2023-39780;
classtype:attempted-admin;
sid:2062608; rev:1;
metadata:affected_product Asus, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_05_28, cve CVE_2023_39780, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, updated_at 2025_05_28, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
target:dest_ip;
)