CVE-2019-1003043 : Security Advisory and Response
Learn about CVE-2019-1003043 affecting Jenkins Slack Notification Plugin versions 2.19 and earlier. Find out the impact, technical details, and mitigation steps for this security vulnerability.
Jenkins Slack Notification Plugin versions 2.19 and earlier have a security vulnerability that allows unauthorized individuals to establish connections to attacker-specified URLs and access stored credentials.
Understanding CVE-2019-1003043
Jenkins Slack Notification Plugin versions 2.19 and earlier are affected by a security flaw that enables attackers to connect to URLs and retrieve credentials.
What is CVE-2019-1003043?
This CVE identifies a missing permission check in Jenkins Slack Notification Plugin versions 2.19 and earlier, enabling users with Overall/Read permission to connect to a specified URL using attacker-controlled credentials IDs, potentially compromising Jenkins credentials.
The Impact of CVE-2019-1003043
The vulnerability allows unauthorized users to access and retrieve credentials stored in Jenkins, posing a risk of unauthorized data access and potential misuse of sensitive information.
Technical Details of CVE-2019-1003043
Jenkins Slack Notification Plugin vulnerability details.
Vulnerability Description
The security flaw in versions 2.19 and earlier of the Jenkins Slack Notification Plugin allows individuals with Overall/Read permission to connect to attacker-specified URLs using attacker-controlled credentials IDs, potentially leading to unauthorized access to stored credentials.
Affected Systems and Versions
- Product: Jenkins Slack Notification Plugin
- Vendor: Jenkins project
- Vulnerable Versions: 2.19 and earlier
Exploitation Mechanism
Attackers with Overall/Read permission can establish connections to URLs specified by attackers using credentials IDs obtained through other means, potentially compromising Jenkins credentials.
Mitigation and Prevention
Protecting systems from CVE-2019-1003043.
Immediate Steps to Take
- Upgrade Jenkins Slack Notification Plugin to a non-vulnerable version.
- Restrict Overall/Read permissions to trusted users only.
- Monitor and review access to Jenkins credentials.
Long-Term Security Practices
- Regularly review and update Jenkins plugins for security patches.
- Implement the principle of least privilege to restrict access rights.
Patching and Updates
- Apply security patches and updates promptly to Jenkins and associated plugins to mitigate known vulnerabilities.