CVE-2020-2211 Explained : Impact and Mitigation

Jenkins ElasticBox Jenkins Kubernetes CI/CD Plugin 1.3 and earlier versions are affected by a remote code execution vulnerability due to improper configuration of the YAML parser.

Understanding CVE-2020-2211

This CVE involves a security issue in the Jenkins ElasticBox Jenkins Kubernetes CI/CD Plugin that could allow remote attackers to execute arbitrary code.

What is CVE-2020-2211?

This CVE refers to a vulnerability in the Jenkins ElasticBox Jenkins Kubernetes CI/CD Plugin versions 1.3 and earlier, where the YAML parser is not properly configured, enabling the instantiation of arbitrary types, leading to a remote code execution risk.

The Impact of CVE-2020-2211

The vulnerability could be exploited by malicious actors to execute arbitrary code remotely, potentially compromising the affected systems and data.

Technical Details of CVE-2020-2211

The technical aspects of this CVE include:

Vulnerability Description

The Jenkins ElasticBox Jenkins Kubernetes CI/CD Plugin 1.3 and earlier versions lack proper YAML parser configuration, allowing the instantiation of arbitrary types, leading to a remote code execution vulnerability.

Affected Systems and Versions

Product: Jenkins ElasticBox Jenkins Kubernetes CI/CD Plugin
Vendor: Jenkins project
Versions Affected:
Version <= 1.3 (status: affected)
Version > 1.3 (status: unknown)

Exploitation Mechanism

The vulnerability can be exploited by attackers to execute malicious code remotely, potentially compromising the integrity and security of the affected systems.

Mitigation and Prevention

To address CVE-2020-2211, consider the following steps:

Immediate Steps to Take

Update the Jenkins ElasticBox Jenkins Kubernetes CI/CD Plugin to a patched version.
Monitor for any unusual activities on the system.

Long-Term Security Practices

Regularly update and patch all software components to prevent vulnerabilities.
Implement proper security configurations and access controls to mitigate risks.

Patching and Updates

Apply security patches and updates provided by the Jenkins project to address the vulnerability effectively.