alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Palo Alto Expedition OS Command Injection (CVE-2025-0107)"; flow:established,to_server; http.uri; content:"/API/regionsDiscovery.php|3f|"; fast_pattern; content:"master|3d|"; pcre:"/^[^\x26]*?spark(?:\x3a|\x253[aA])(?:\x2f|\x252[fF]){2}/R"; http.method; content:"GET"; reference:url,ssd-disclosure.com/ssd-advisory-palo-alto-expedition-rce-regionsdiscovery/; reference:cve,2025-0107; classtype:web-application-attack; sid:2064937; rev:1; metadata:affected_product Palo_Alto_Networks, attack_target Server, tls_state TLSDecrypt, created_at 2025_09_26, cve CVE_2025_0107, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_09_26, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)