CVE-2020-2167 : Vulnerability Insights and Analysis

Jenkins OpenShift Pipeline Plugin 1.0.56 and earlier versions are affected by a remote code execution vulnerability due to a YAML parser misconfiguration.

Understanding CVE-2020-2167

This CVE involves a security issue in the Jenkins OpenShift Pipeline Plugin that allows for remote code execution.

What is CVE-2020-2167?

This vulnerability in the Jenkins OpenShift Pipeline Plugin version 1.0.56 and earlier enables the instantiation of arbitrary types through its YAML parser, leading to a remote code execution risk.

The Impact of CVE-2020-2167

The vulnerability allows attackers to execute arbitrary code remotely, potentially compromising the affected systems and data.

Technical Details of CVE-2020-2167

The technical aspects of the vulnerability are as follows:

Vulnerability Description

The Jenkins OpenShift Pipeline Plugin 1.0.56 and earlier versions lack proper configuration in their YAML parser, enabling the instantiation of arbitrary types, which can be exploited for remote code execution.

Affected Systems and Versions

Product: Jenkins OpenShift Pipeline Plugin
Vendor: Jenkins project
Versions Affected: <= 1.0.56 (unspecified version type: custom)

Exploitation Mechanism

The vulnerability arises from the failure to restrict the instantiation of arbitrary types in the YAML parser, allowing attackers to craft malicious YAML payloads to execute arbitrary code remotely.

Mitigation and Prevention

To address CVE-2020-2167, consider the following steps:

Immediate Steps to Take

Update the Jenkins OpenShift Pipeline Plugin to a patched version that addresses the YAML parser vulnerability.
Monitor for any suspicious activities on the Jenkins platform that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Regularly update all software components, including plugins, to mitigate potential security risks.
Implement network segmentation and access controls to limit the impact of successful attacks.

Patching and Updates

Apply security patches promptly to ensure that known vulnerabilities are addressed and system security is maintained.