CVE-2019-1003033 : Security Advisory and Response
Learn about CVE-2019-1003033, a vulnerability in Jenkins Groovy Plugin 2.1 and earlier allowing arbitrary code execution. Find mitigation steps and preventive measures here.
Jenkins Groovy Plugin 2.1 and earlier have a vulnerability that allows individuals to execute arbitrary code on the Jenkins master JVM.
Understanding CVE-2019-1003033
This CVE involves a sandbox bypass vulnerability in Jenkins Groovy Plugin.
What is CVE-2019-1003033?
A vulnerability in Jenkins Groovy Plugin 2.1 and earlier allows users with Overall/Read permission to run arbitrary code on the Jenkins master JVM.
The Impact of CVE-2019-1003033
This vulnerability could be exploited by attackers to execute unauthorized code on the Jenkins master JVM, potentially leading to system compromise.
Technical Details of CVE-2019-1003033
This section provides detailed technical information about the CVE.
Vulnerability Description
The vulnerability exists in pom.xml and src/main/java/hudson/plugins/groovy/StringScriptSource.java of Jenkins Groovy Plugin 2.1 and earlier, enabling code execution by users with Overall/Read permission.
Affected Systems and Versions
- Product: Jenkins Groovy Plugin
- Vendor: Jenkins project
- Versions Affected: 2.1 and earlier
Exploitation Mechanism
Attackers with Overall/Read permission can exploit the vulnerability to execute arbitrary code on the Jenkins master JVM.
Mitigation and Prevention
Protect your systems from CVE-2019-1003033 with the following steps:
Immediate Steps to Take
- Update Jenkins Groovy Plugin to a non-vulnerable version.
- Restrict Overall/Read permissions to trusted users only.
Long-Term Security Practices
- Regularly monitor and audit Jenkins permissions.
- Implement the principle of least privilege to limit user access.
Patching and Updates
- Apply security patches and updates promptly to mitigate known vulnerabilities.