alert http any any -> $HOME_NET any (msg:"ET EXPLOIT D-Link webupg Remote Code Execution Attempt Inbound (CVE 2021-46441, 2021-46442)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/cgi-bin/webupg"; fast_pattern; bsize:15; http.referer; content:"autoupgrade.asp"; endswith; http.request_body; content:"name|3d|shell&key|3d|twmode&cmd|3d|"; reference:url,github.com/tgp-top/D-Link-DIR-825; reference:cve,2021-46441; reference:cve,2021-46442; classtype:attempted-admin; sid:2044009; rev:1; metadata:affected_product IoT, attack_target Networking_Equipment, created_at 2023_01_27, cve CVE_2021_46441, deployment Perimeter, deployment Internal, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_01_27, reviewed_at 2024_09_30, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;)