ET WEB_SPECIFIC_APPS Atlassian Jira makeRequest SSRF (CVE-2019-8451)

alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (
    msg:"ET WEB_SPECIFIC_APPS Atlassian Jira makeRequest SSRF (CVE-2019-8451)";
    flow:established,to_server;
    http.uri;
    content:"/plugins/servlet/gadgets/makeRequest?"; fast_pattern;
    content:"url|3d|";
    pcre:"/^[^&]*?\w+(?:\x3a|\x25(?:25)?3[aA])(?:\x2f|\x25(?:25)?2[fF]){2}/R";
    reference:url,www.assetnote.io/resources/research/a-glossary-of-blind-ssrf-chains;
    reference:cve,2019-8451;
    classtype:web-application-attack;
    sid:2069979; rev:1;
    metadata:affected_product Atlassian, attack_target Server, tls_state TLSDecrypt, created_at 2026_06_17, cve CVE_2019_8451, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, updated_at 2026_06_17, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)