alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS SysAid On-Prem lshw XML External Entity Injection (CVE-2025-2777)"; flow:established,to_server; http.uri; content:"/lshw"; startswith; http.request_body; content:"|3c 21|ENTITY|20 25|"; fast_pattern; content:"SYSTEM"; distance:0; http.method; content:"POST"; reference:url,labs.watchtowr.com/sysowned-your-friendly-rce-support-ticket/; reference:cve,2025-2777; classtype:web-application-attack; sid:2066205; rev:1; metadata:affected_product SysAid, attack_target Server, tls_state TLSDecrypt, created_at 2025_12_09, cve CVE_2025_2777, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, updated_at 2025_12_09, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)