CVE-2020-2309 : Exploit Details and Defense Strategies
Learn about CVE-2020-2309, a vulnerability in Jenkins Kubernetes Plugin allowing attackers to access credential IDs. Find out the impact, affected versions, and mitigation steps.
A missing/incorrect permission check in Jenkins Kubernetes Plugin 1.27.3 and earlier allows attackers to enumerate credentials IDs.
Understanding CVE-2020-2309
A vulnerability in Jenkins Kubernetes Plugin that enables attackers to access credential IDs.
What is CVE-2020-2309?
This CVE involves a missing/incorrect permission check in Jenkins Kubernetes Plugin versions 1.27.3 and earlier, allowing attackers with specific permissions to access credential IDs stored in Jenkins.
The Impact of CVE-2020-2309
The vulnerability can be exploited by attackers with Overall/Read permission, potentially leading to unauthorized access to sensitive credential information within Jenkins.
Technical Details of CVE-2020-2309
Details regarding the vulnerability and affected systems.
Vulnerability Description
A missing/incorrect permission check in Jenkins Kubernetes Plugin 1.27.3 and earlier enables attackers to enumerate credential IDs stored in Jenkins.
Affected Systems and Versions
- Product: Jenkins Kubernetes Plugin
- Vendor: Jenkins project
- Affected Versions: <= 1.27.3 (custom version), 1.26.5, 1.25.4.1, 1.21.6
Exploitation Mechanism
Attackers with Overall/Read permission can exploit the vulnerability to access credential IDs in Jenkins.
Mitigation and Prevention
Steps to mitigate and prevent exploitation of CVE-2020-2309.
Immediate Steps to Take
- Upgrade Jenkins Kubernetes Plugin to a patched version.
- Restrict Overall/Read permissions to prevent unauthorized access.
Long-Term Security Practices
- Regularly review and update Jenkins plugins for security patches.
- Implement the principle of least privilege to restrict access to sensitive information.
Patching and Updates
Ensure timely installation of security patches and updates to Jenkins Kubernetes Plugin.