CVE-2019-1003029 on CISA KEV

A sandbox bypass vulnerability exists in Jenkins Script Security Plugin 1.53 and earlier in src/main/java/org/jenkinsci/plugins/scriptsecurity/sandbox/groovy/GroovySandbox.java, src/main/java/org/jenkinsci/plugins/scriptsecurity/sandbox/groovy/SecureGroovyScript.java that allows

01What CISA says about this vulnerability

A sandbox bypass vulnerability exists in Jenkins Script Security Plugin 1.53 and earlier in src/main/java/org/jenkinsci/plugins/scriptsecurity/sandbox/groovy/GroovySandbox.java, src/main/java/org/jenkinsci/plugins/scriptsecurity/sandbox/groovy/SecureGroovyScript.java that allows attackers with Overall/Read permission to execute arbitrary code on the Jenkins master JVM.

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

• jenkins.io — https://jenkins.io/security/advisory/2019-03-06/#SECURITY-1336%20%281%29
• www.securityfocus.com — http://www.securityfocus.com/bid/107476
• access.redhat.com — https://access.redhat.com/errata/RHSA-2019:0739
• packetstormsecurity.com — http://packetstormsecurity.com/files/166778/Jenkins-Remote-Code-Execution.html

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
Jenkins project	Jenkins Script Security Plugin	1.53 and earlier

06Detection

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection:

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