Understand CVE-2021-21661 affecting Jenkins Kubernetes CLI Plugin 1.10.0 and earlier. Learn about the impact, technical details, affected systems, and mitigation steps.
A detailed overview of CVE-2021-21661, a vulnerability in Jenkins Kubernetes CLI Plugin.
Understanding CVE-2021-21661
This section provides insights into the nature and impact of the vulnerability.
What is CVE-2021-21661?
CVE-2021-21661 refers to a security flaw in Jenkins Kubernetes CLI Plugin version 1.10.0 and earlier. The plugin fails to perform permission checks in several HTTP endpoints, allowing attackers with Overall/Read permission to enumerate credential IDs stored in Jenkins.
The Impact of CVE-2021-21661
The vulnerability enables unauthorized users to access sensitive credential information in Jenkins, potentially leading to unauthorized disclosure or manipulation of confidential data.
Technical Details of CVE-2021-21661
Explore specific technical aspects of the CVE-2021-21661 vulnerability.
Vulnerability Description
Jenkins Kubernetes CLI Plugin 1.10.0 and earlier lack proper permission validation in various HTTP endpoints, making it susceptible to credential enumeration attacks.
Affected Systems and Versions
The Jenkins Kubernetes CLI Plugin versions equal to or less than 1.10.0 are affected by this security issue.
Exploitation Mechanism
Attackers with Overall/Read permissions can exploit this vulnerability to retrieve credential IDs of stored credentials within Jenkins.
Mitigation and Prevention
Learn how to address and prevent CVE-2021-21661 from causing harm.
Immediate Steps to Take
Users are advised to update Jenkins Kubernetes CLI Plugin to a non-vulnerable version and review access controls to limit exposure.
Long-Term Security Practices
Adopt a least privilege model, regularly review and rotate credentials, and conduct security training to enhance overall security posture.
Patching and Updates
Stay vigilant for security advisories, apply patches promptly, and keep all software components up-to-date to prevent exploitation.