alert http [$HOME_NET,$HTTP_SERVERS] any -> any any (
msg:"ET WEB_SPECIFIC_APPS Atlassian Confluence CVE-2023-22522 Vulnerable Server Detected Version 8.x M1";
flow:established,to_client;
http.response_body;
content:"|3c|meta|20|name|3d 22|ajs|2d|version|2d|number|22 20|content|3d 22|8|2e|"; fast_pattern;
pcre:"/^(?:[0123]|4\.[01234]|5\.[0123]|6\.[01])\x22/R";
threshold:type limit, count 1, seconds 3600, track by_src;
reference:url,confluence.atlassian.com/security/cve-2023-22522-injection-vulnerability-in-confluence-data-center-and-confluence-server-1319570362.html;
reference:cve,2023-22522;
classtype:web-application-activity;
sid:2049625; rev:1;
metadata:affected_product Atlassian_Confluence, attack_target Web_Server, created_at 2023_12_08, cve CVE_2023_22522, deployment Perimeter, deployment Internal, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_12_08;
target:src_ip;
)