alert http [$HOME_NET,$HTTP_SERVERS] any -> any any (
msg:"ET WEB_SPECIFIC_APPS Atlassian Bitbucket CVE-2022-1471 Vulnerable Server Detected Version 8.0 - 8.12.0";
flow:established,to_client;
http.response_body;
content:"Atlassian|20|Bitbucket|20 3c|span|20|"; fast_pattern;
content:"data|2d|system|2d|build|2d|number|3d 22|"; within:250;
content:"|22 3e 20|v8|2e|"; within:50;
pcre:"/^(?:1(?:0\.[0123]|1\.[012]|2\.0|\.)|8\.[0123456]|[0234567]\.|9\.[0123])/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:2049638; 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;
)