alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (
msg:"ET WEB_SPECIFIC_APPS Esri ArcGIS Server Unauthenticated Path Traversal in UploadsManager (CVE-2026-9181)";
flow:established,to_server;
http.uri;
content:"/arcgis/rest/services/System/PublishingTools/GPServer/uploads/upload"; fast_pattern;
http.request_body;
content:"filename|3d 22|";
pcre:"/^[^\x22]*?(?:(?:\x2e|%2[Ee]){1,2}(?:\x2f|\x5c|%5[Cc]|%2[Ff]){1,}){2,}/R";
http.method;
content:"POST";
reference:url,rustlang.rs/posts/blog_cve_2026_9181_arcgis_en/;
reference:cve,2026-9181;
classtype:web-application-attack;
sid:2071240; rev:1;
metadata:attack_target Server, tls_state TLSDecrypt, created_at 2026_07_21, cve CVE_2026_9181, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, updated_at 2026_07_21, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
target:dest_ip;
)