CVE-2019-1003005 : What You Need to Know
Learn about CVE-2019-1003005 affecting Jenkins Script Security Plugin versions before 1.50, enabling sandbox bypass and arbitrary code execution. Find mitigation steps and preventive measures here.
The Jenkins Script Security Plugin versions before 1.50 have a vulnerability that allows bypassing the sandbox, potentially leading to arbitrary code execution on the Jenkins master JVM.
Understanding CVE-2019-1003005
This CVE involves a critical security issue in the Jenkins Script Security Plugin.
What is CVE-2019-1003005?
This vulnerability in the Jenkins Script Security Plugin versions prior to 1.50 enables attackers with specific permissions to execute arbitrary code on the Jenkins master JVM.
The Impact of CVE-2019-1003005
The vulnerability allows attackers to bypass the sandbox and execute unauthorized code on the Jenkins server, posing a significant security risk to the system.
Technical Details of CVE-2019-1003005
This section provides in-depth technical insights into the CVE.
Vulnerability Description
The vulnerability exists in the "SecureGroovyScript.java" file within the plugin, allowing attackers to submit malicious Groovy scripts to an HTTP endpoint.
Affected Systems and Versions
- Product: Jenkins Script Security Plugin
- Vendor: Jenkins project
- Versions Affected: 1.50 and earlier
Exploitation Mechanism
Attackers with Overall/Read permissions can exploit this vulnerability by submitting a Groovy script to an HTTP endpoint, leading to the execution of arbitrary code on the Jenkins master JVM.
Mitigation and Prevention
Protecting systems from CVE-2019-1003005 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update the Jenkins Script Security Plugin to version 1.50 or later to mitigate the vulnerability.
- Monitor and restrict access to Jenkins endpoints to prevent unauthorized script submissions.
Long-Term Security Practices
- Regularly review and update Jenkins plugins to ensure the latest security patches are applied.
- Implement least privilege access controls to limit the impact of potential security breaches.
Patching and Updates
- Apply security patches and updates promptly to address known vulnerabilities and enhance system security.