ET WEB_SPECIFIC_APPS Atlassian JIRA Template Injection RCE (CVE-2019-11581)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/secure/ContactAdministrators"; fast_pattern;
content:".jspa"; endswith;
http.request_body;
content:"subject=";
content:"|2e|forName"; distance:0;
content:"java.lang.Runtime"; distance:2; within:23;
content:"|2e|getMethod"; distance:2; within:16;
content:"getRuntime"; distance:1; within:16;
content:"|2e|exec"; distance:0;
content:"|2e|waitFor"; distance:0;
Raw source ET WEB_SPECIFIC_APPS Atlassian JIRA Template Injection RCE (CVE-2019-11581) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (
    msg:"ET WEB_SPECIFIC_APPS Atlassian JIRA Template Injection RCE (CVE-2019-11581)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/secure/ContactAdministrators"; fast_pattern;
    content:".jspa"; endswith;
    http.request_body;
    content:"subject=";
    content:"|2e|forName"; distance:0;
    content:"java.lang.Runtime"; distance:2; within:23;
    content:"|2e|getMethod"; distance:2; within:16;
    content:"getRuntime"; distance:1; within:16;
    content:"|2e|exec"; distance:0;
    content:"|2e|waitFor"; distance:0;
    reference:url,medium.com/@ruvlol/rce-in-jira-cve-2019-11581-901b845f0f;
    reference:url,confluence.atlassian.com/jira/jira-security-advisory-2019-07-10-973486595.html;
    reference:cve,CVE-2019-11581;
    classtype:attempted-admin;
    sid:2027711; rev:5;
    metadata:attack_target Web_Server, created_at 2019_07_15, deployment Perimeter, performance_impact Low, signature_severity Major, tag CISA_KEV, updated_at 2020_09_17;
)

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