alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT Nagios XI Remote Code Execution 3"; flow:established,to_server; http.uri; content:"/index.php?cmd=submitcommand&command="; content:"&command_data=$("; fast_pattern; reference:url,2018-8733; reference:cve,2018-8734; reference:cve,2018-8735; reference:cve,2018-8736; reference:url,exploit-db.com/exploits/44969/; classtype:attempted-user; sid:2025776; rev:4; metadata:attack_target Server, created_at 2018_07_03, cve CVE_2018_8734, deployment Datacenter, confidence Medium, signature_severity Critical, updated_at 2020_11_19, reviewed_at 2024_04_03, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;)