CVE-2019-10356 Explained : Impact and Mitigation

Jenkins Script Security Plugin, versions 1.61 and earlier, contains a vulnerability that allows attackers to bypass sandbox restrictions, potentially leading to the execution of arbitrary code within sandboxed scripts.

Understanding CVE-2019-10356

This CVE involves a security flaw in the Jenkins Script Security Plugin that could be exploited by attackers to execute unauthorized code within sandboxed scripts.

What is CVE-2019-10356?

This CVE identifies a sandbox bypass vulnerability in the Jenkins Script Security Plugin versions 1.61 and earlier. The issue is related to how method pointer expressions are handled, enabling malicious actors to run arbitrary code within sandboxed scripts.

The Impact of CVE-2019-10356

The vulnerability in the Jenkins Script Security Plugin could allow threat actors to bypass sandbox restrictions and execute unauthorized code within sandboxed scripts, potentially leading to a compromise of the Jenkins environment.

Technical Details of CVE-2019-10356

This section provides more in-depth technical details about the CVE.

Vulnerability Description

The vulnerability in Jenkins Script Security Plugin versions 1.61 and earlier allows attackers to bypass sandbox restrictions and execute arbitrary code within sandboxed scripts by manipulating method pointer expressions.

Affected Systems and Versions

Product: Jenkins Script Security Plugin
Vendor: Jenkins project
Versions Affected: 1.61 and earlier

Exploitation Mechanism

The vulnerability can be exploited by attackers to manipulate method pointer expressions, enabling them to execute unauthorized code within sandboxed scripts.

Mitigation and Prevention

Protecting systems from CVE-2019-10356 requires immediate action and long-term security practices.

Immediate Steps to Take

Update Jenkins Script Security Plugin to the latest patched version.
Monitor for any unauthorized script executions within the Jenkins environment.

Long-Term Security Practices

Regularly review and update Jenkins plugins to ensure the latest security patches are applied.
Implement strict access controls and monitoring mechanisms to detect and prevent unauthorized code execution.

Patching and Updates

Apply security patches provided by Jenkins project promptly to address the vulnerability and prevent exploitation.