CVE-2019-16576 Explained : Impact and Mitigation
Learn about CVE-2019-16576 affecting Jenkins Alauda Kubernetes Suport Plugin. Unauthorized access to URLs can lead to exposure of sensitive data. Find mitigation steps here.
Jenkins Alauda Kubernetes Suport Plugin 2.3.0 and prior versions have a vulnerability that allows unauthorized individuals to establish a connection to a specific URL, potentially accessing sensitive information.
Understanding CVE-2019-16576
This CVE involves a missing permission verification in the Jenkins Alauda Kubernetes Suport Plugin, enabling unauthorized access to certain URLs.
What is CVE-2019-16576?
This vulnerability in Jenkins Alauda Kubernetes Suport Plugin allows attackers with specific permissions to connect to a designated URL using obtained credentials, potentially compromising Kubernetes service account tokens or Jenkins credentials.
The Impact of CVE-2019-16576
The absence of permission checks in the affected plugin can lead to unauthorized access and potential exposure of sensitive data stored in Jenkins.
Technical Details of CVE-2019-16576
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability in Jenkins Alauda Kubernetes Suport Plugin allows individuals with Overall/Read permission to connect to a specified URL using attacker-obtained credentials, potentially compromising Kubernetes service account tokens or Jenkins credentials.
Affected Systems and Versions
- Product: Jenkins Alauda Kubernetes Suport Plugin
- Vendor: Jenkins project
- Versions Affected: <= 2.3.0, next of 2.3.0
Exploitation Mechanism
Attackers can exploit this vulnerability by leveraging Overall/Read permissions to establish connections to specific URLs using unauthorized credentials.
Mitigation and Prevention
Protecting systems from CVE-2019-16576 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update Jenkins Alauda Kubernetes Suport Plugin to a patched version.
- Restrict Overall/Read permissions to authorized personnel only.
Long-Term Security Practices
- Regularly review and update plugin permissions.
- Implement least privilege access controls.
Patching and Updates
Ensure timely installation of security patches and updates to mitigate the vulnerability effectively.