CVE-2019-10400 : What You Need to Know

The Jenkins Script Security Plugin version 1.62 and earlier contained a vulnerability that allowed attackers to execute arbitrary code by bypassing sandbox protection.

Understanding CVE-2019-10400

This CVE involves a sandbox bypass vulnerability in the Jenkins Script Security Plugin version 1.62 and earlier.

What is CVE-2019-10400?

This CVE refers to a specific vulnerability in the Jenkins Script Security Plugin that enabled attackers to run arbitrary code in scripts by circumventing sandbox protection.

The Impact of CVE-2019-10400

The vulnerability allowed attackers to execute arbitrary code in sandboxed scripts by exploiting subexpressions in increment and decrement expressions without actual assignment.

Technical Details of CVE-2019-10400

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in the Jenkins Script Security Plugin version 1.62 and earlier allowed attackers to bypass sandbox protection and execute arbitrary code in scripts.

Affected Systems and Versions

Product: Jenkins Script Security Plugin
Vendor: Jenkins project
Versions Affected: 1.62 and earlier

Exploitation Mechanism

The vulnerability was specifically related to the handling of subexpressions in increment and decrement expressions that did not involve actual assignment.

Mitigation and Prevention

Protecting systems from CVE-2019-10400 is crucial for maintaining security.

Immediate Steps to Take

Update the Jenkins Script Security Plugin to a non-vulnerable version.
Monitor for any suspicious activities on the Jenkins platform.

Long-Term Security Practices

Regularly update all Jenkins plugins to their latest versions.
Implement strict code review processes to catch vulnerabilities early.

Patching and Updates

Apply patches released by Jenkins to address the vulnerability.