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CVE-2019-10309

9.3 · CRITICAL

Jenkins Self-Organizing Swarm Plug-in Modules Plugin clients that use UDP broadcasts to discover Jenkins masters do not prevent XML External Entity processing when processing the responses, allowin…

Published Apr 30, 2019CWE-611EPSS 1.79%

Overview

CVE-2019-10309 is a critical-severity vulnerability. It was published on April 30, 2019 and has a CVSS 3.0 base score of 9.3 (CRITICAL).

This vulnerability has a CVSS 3.0 base score of 9.3, rated CRITICAL. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

Jenkins Self-Organizing Swarm Plug-in Modules Plugin clients that use UDP broadcasts to discover Jenkins masters do not prevent XML External Entity processing when processing the responses, allowing unauthorized attackers on the same network to read arbitrary files from Swarm clients.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.openwall.com/lists/oss-security/2019/04/30/5Refwww.securityfocus.com/bid/108159Refjenkins.io/security/advisory/2019-04-30/#SECURITY-1252Refwww.talosintelligence.com/vulnerability_reports/TALOS-2019-0783Refwww.openwall.com/lists/oss-security/2019/04/30/5Refwww.securityfocus.com/bid/108159Refjenkins.io/security/advisory/2019-04-30/#SECURITY-1252Refwww.talosintelligence.com/vulnerability_reports/TALOS-2019-0783

How CyberStrike helps

Frequently asked questions

What is CVE-2019-10309?

CVE-2019-10309 is a critical-severity vulnerability. It was published on April 30, 2019 and has a CVSS 3.0 base score of 9.3 (CRITICAL).

How severe is CVE-2019-10309?

This vulnerability has a CVSS 3.0 base score of 9.3, rated CRITICAL. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-10309?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2019-10309?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-10309 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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