ET WEB_SPECIFIC_APPS Jenkins Chained Exploits CVE-2018-1000861 and CVE-2019-1003000 M3

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/securityRealm/user/"; fast_pattern;
content:"/descriptorByName/"; distance:0;
content:"checkScript|3f|";
content:"value|3d|";
pcre:"/^[^\x0d\x26]*?[\x40\x7b\x28]/R";
target:dest_ip;
Raw source ET WEB_SPECIFIC_APPS Jenkins Chained Exploits CVE-2018-1000861 and CVE-2019-1003000 M3 · Suricata
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Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (
    msg:"ET WEB_SPECIFIC_APPS Jenkins Chained Exploits CVE-2018-1000861 and CVE-2019-1003000 M3";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/securityRealm/user/"; fast_pattern;
    content:"/descriptorByName/"; distance:0;
    content:"checkScript|3f|";
    content:"value|3d|";
    pcre:"/^[^\x0d\x26]*?[\x40\x7b\x28]/R";
    reference:cve,2018-100086;
    reference:url,blog.orange.tw/2019/01/hacking-jenkins-part-1-play-with-dynamic-routing.html;
    reference:url,blog.orange.tw/2019/02/abusing-meta-programming-for-unauthenticated-rce.html;
    reference:cve,2019-100300;
    classtype:web-application-attack;
    sid:2060509; rev:2;
    metadata:affected_product Jenkins, attack_target Server, created_at 2025_03_03, cve CVE_2018_100086_CVE_2019_100300, deployment Perimeter, confidence High, signature_severity Major, tag Exploit, tag CISA_KEV, updated_at 2025_04_11, reviewed_at 2025_08_26, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)

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