alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Commvault Code Injection via User description Property"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/commandcenter/RestServlet/User/"; fast_pattern; startswith; http.request_body; content:"|3c|description|3e|"; pcre:"/^[^\x3c]*?\w+\x28\x29\x2e\w+\x28/R"; reference:url,labs.watchtowr.com/guess-who-would-be-stupid-enough-to-rob-the-same-vault-twice-pre-auth-rce-chains-in-commvault/; classtype:web-application-attack; sid:2064168; rev:1; metadata:affected_product Commvault, attack_target Server, tls_state TLSDecrypt, created_at 2025_08_26, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_08_26, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)