alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT Nagios XI Remote Code Execution"; flow:established,to_server; http.uri; content:"/ajaxhelper.php?cmd=getxicoreajax"; fast_pattern; http.uri.raw; content:"&opts=%7b%22func%22%3a%22get_hoststatus_table%22%7d"; 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:2025774; rev:2; metadata:attack_target Server, created_at 2018_07_02, cve CVE_2018_8734, deployment Datacenter, confidence Medium, signature_severity Critical, updated_at 2020_08_25, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;)