CVE-2019-10390 : What You Need to Know
Learn about CVE-2019-10390, a sandbox bypass vulnerability in Jenkins Splunk Plugin versions 1.7.4 and earlier. Understand the impact, affected systems, exploitation mechanism, and mitigation steps.
A sandbox bypass vulnerability in Jenkins Splunk Plugin versions 1.7.4 and earlier allows attackers with Overall/Read permission to execute arbitrary code on the Jenkins master JVM.
Understanding CVE-2019-10390
Attackers exploiting this vulnerability could bypass the sandbox in Jenkins Splunk Plugin, potentially leading to unauthorized code execution.
What is CVE-2019-10390?
The CVE-2019-10390 vulnerability in Jenkins Splunk Plugin versions 1.7.4 and earlier enables attackers with specific permissions to execute arbitrary code on the Jenkins master JVM by providing a Groovy script to an HTTP endpoint.
The Impact of CVE-2019-10390
This vulnerability poses a significant risk as it allows attackers to bypass security measures and execute malicious code on the Jenkins master JVM, potentially leading to system compromise and data breaches.
Technical Details of CVE-2019-10390
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability in Jenkins Splunk Plugin versions 1.7.4 and earlier allows attackers with Overall/Read permission to provide a Groovy script to an HTTP endpoint, enabling them to execute arbitrary code on the Jenkins master JVM.
Affected Systems and Versions
- Product: Jenkins Splunk Plugin
- Vendor: Jenkins project
- Versions Affected: 1.7.4 and earlier
Exploitation Mechanism
Attackers with Overall/Read permission can exploit this vulnerability by providing a Groovy script to an HTTP endpoint, bypassing the sandbox and executing arbitrary code on the Jenkins master JVM.
Mitigation and Prevention
Protecting systems from CVE-2019-10390 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update Jenkins Splunk Plugin to a non-vulnerable version immediately.
- Restrict Overall/Read permissions to minimize the attack surface.
- Monitor HTTP endpoints for suspicious activities.
Long-Term Security Practices
- Regularly review and update Jenkins plugins to ensure they are secure.
- Implement the principle of least privilege to restrict unnecessary permissions.
- Conduct security training for users to recognize and report suspicious activities.
Patching and Updates
- Apply security patches and updates promptly to mitigate known vulnerabilities and enhance system security.