CVE-2019-10311 Explained : Impact and Mitigation
Learn about CVE-2019-10311 affecting Jenkins Ansible Tower Plugin versions 0.9.1 and earlier. Find out the impact, technical details, and mitigation steps for this security vulnerability.
A vulnerability in the Jenkins Ansible Tower Plugin versions 0.9.1 and earlier allows attackers with specific permissions to establish unauthorized connections and capture stored credentials.
Understanding CVE-2019-10311
This CVE relates to a security flaw in the Jenkins Ansible Tower Plugin that enables attackers to exploit a lack of permission checks, potentially compromising sensitive information.
What is CVE-2019-10311?
The vulnerability in the Jenkins Ansible Tower Plugin versions 0.9.1 and earlier allows attackers with Overall/Read permission to connect to a specified URL using obtained credentials, leading to potential credential theft.
The Impact of CVE-2019-10311
Exploiting this vulnerability can result in unauthorized access to sensitive credentials stored within the Jenkins system, posing a significant security risk.
Technical Details of CVE-2019-10311
This section provides detailed technical insights into the vulnerability.
Vulnerability Description
The vulnerability arises from a missing permission check in the TowerInstallation.TowerInstallationDescriptor#doTestTowerConnection form validation method, enabling unauthorized connections and credential capture.
Affected Systems and Versions
- Product: Jenkins Ansible Tower Plugin
- Vendor: Jenkins project
- Versions Affected: 0.9.1 and earlier
Exploitation Mechanism
Attackers with Overall/Read permission can connect to a specified URL using credentials obtained through other means, potentially leading to credential theft.
Mitigation and Prevention
Protecting systems from CVE-2019-10311 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update the Jenkins Ansible Tower Plugin to a patched version immediately.
- Restrict Overall/Read permissions to minimize the risk of unauthorized access.
Long-Term Security Practices
- Regularly review and update permission settings in Jenkins to ensure least privilege access.
- Implement multi-factor authentication to enhance credential security.
Patching and Updates
- Apply security patches and updates provided by Jenkins to address the vulnerability effectively.