alert http [$HOME_NET,$HTTP_SERVERS] any -> any any (
msg:"ET WEB_SPECIFIC_APPS Atlassian Confluence CVE-2022-1471 Vulnerable Server Detected Version 6.13.x - 6.15.x M2";
flow:established,to_client;
http.header_names;
content:"|0d 0a|X-Confluence-Request-Time|0d 0a|"; nocase;
http.response_body;
content:"|3c|li|20|class|3d 22|print|2d|only|22 3e|Printed|20|by|20|Atlassian|20|Confluence|20|6.1"; fast_pattern;
pcre:"/^[345]\./R";
threshold:type limit, count 1, seconds 3600, track by_src;
reference:url,confluence.atlassian.com/security/cve-2022-1471-snakeyaml-library-rce-vulnerability-in-multiple-products-1296171009.html;
reference:cve,2022-1471;
classtype:web-application-activity;
sid:2049640; rev:1;
metadata:affected_product Atlassian, attack_target Web_Server, created_at 2023_12_12, cve CVE_2022_1471, deployment Perimeter, deployment Internal, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_12_12;
target:src_ip;
)