CVE-2020-2110 : What You Need to Know

Jenkins Script Security Plugin version 1.69 and earlier is affected by a vulnerability that allows sandbox protection circumvention during script compilation.

Understanding CVE-2020-2110

This CVE involves a security issue in the Jenkins Script Security Plugin that could be exploited to bypass sandbox protection mechanisms.

What is CVE-2020-2110?

The vulnerability in Jenkins Script Security Plugin version 1.69 and earlier enables attackers to bypass sandbox protection by utilizing AST transforming annotations within imports or other annotations during the script compilation phase.

The Impact of CVE-2020-2110

The security flaw in the affected versions of the plugin could lead to unauthorized access and potential manipulation of Jenkins scripts, posing a risk to the integrity and confidentiality of the system.

Technical Details of CVE-2020-2110

The technical aspects of the CVE provide insight into the vulnerability's description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability allows malicious actors to evade sandbox protection by leveraging specific annotations during script compilation in Jenkins Script Security Plugin version 1.69 and earlier.

Affected Systems and Versions

Product: Jenkins Script Security Plugin
Vendor: Jenkins project
Versions Affected: <= 1.69 (unspecified version type - custom)

Exploitation Mechanism

The vulnerability can be exploited by applying AST transforming annotations to imports or using them within other annotations during the script compilation phase.

Mitigation and Prevention

Protecting systems from CVE-2020-2110 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Jenkins Script Security Plugin to a patched version beyond 1.69 to mitigate the vulnerability.
Monitor for any suspicious activities or unauthorized script executions.

Long-Term Security Practices

Regularly review and update Jenkins plugins to ensure the latest security patches are applied.
Implement least privilege access controls to limit the impact of potential security breaches.

Patching and Updates

Stay informed about security advisories and updates from Jenkins project to promptly address any new vulnerabilities and apply patches.