alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (msg:"ET WEB_SPECIFIC_APPS Jenkins Chained Exploits CVE-2018-1000861 and CVE-2019-1003000 M1"; flow:established,to_server; http.method; content:"GET"; startswith; http.uri; content:"/securityRealm/user/"; startswith; fast_pattern; content:"descriptorByName/"; distance:0; content:"checkScriptCompile"; distance:0; content:"value=|40|GrabConfig"; distance:0; content:"|40|GrabResolver|28|"; distance:0; content:"|27|http"; within:60; content:"|27 29 0a 40|Grab|28|"; distance:0; http.header_names; to_lowercase; content:!"|0d 0a|referer|0d 0a|"; reference:cve,2018-1000861; reference:cve,2019-1003000; reference:url,blog.orange.tw/2019/02/abusing-meta-programming-for-unauthenticated-rce.html; reference:url,blog.orange.tw/2019/01/hacking-jenkins-part-1-play-with-dynamic-routing.html; classtype:web-application-attack; sid:2027349; rev:7; metadata:attack_target Server, created_at 2019_05_10, cve CVE_2018_100086, deployment Perimeter, performance_impact Low, signature_severity Major, tag CISA_KEV, updated_at 2024_05_01;)