CVE-2019-10438 : Security Advisory and Response
Learn about CVE-2019-10438, a security flaw in Jenkins CRX Content Package Deployer Plugin versions 1.8.1 and earlier allowing unauthorized access to URLs and credential theft. Find mitigation steps and best practices for prevention.
A security vulnerability in Jenkins CRX Content Package Deployer Plugin versions 1.8.1 and earlier allowed unauthorized individuals to connect to a specified URL and capture stored credentials.
Understanding CVE-2019-10438
This CVE involves a missing permission check in the Jenkins CRX Content Package Deployer Plugin, enabling attackers to access sensitive information.
What is CVE-2019-10438?
The vulnerability in versions 1.8.1 and earlier of the Jenkins CRX Content Package Deployer Plugin allowed attackers with specific permissions to establish connections to URLs and extract stored credentials.
The Impact of CVE-2019-10438
The security flaw permitted unauthorized access to sensitive data, potentially leading to credential theft and unauthorized system access.
Technical Details of CVE-2019-10438
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The absence of a permission check in the affected plugin enabled attackers with Overall/Read permission to connect to specified URLs and extract credentials stored in Jenkins.
Affected Systems and Versions
- Product: Jenkins CRX Content Package Deployer Plugin
- Vendor: Jenkins project
- Vulnerable Versions: 1.8.1 and earlier
Exploitation Mechanism
Attackers could exploit this vulnerability by using credentials IDs obtained through other means to establish connections to URLs specified by the attacker, allowing them to capture stored credentials.
Mitigation and Prevention
To address CVE-2019-10438, follow these mitigation steps:
Immediate Steps to Take
- Update the Jenkins CRX Content Package Deployer Plugin to a non-vulnerable version.
- Monitor and restrict permissions for accessing sensitive information.
Long-Term Security Practices
- Regularly review and update security configurations in Jenkins.
- Implement least privilege access controls to limit unauthorized access.
Patching and Updates
- Apply security patches and updates provided by Jenkins to fix the vulnerability and enhance system security.