CVE-2017-1000387 : Vulnerability Insights and Analysis
Discover the security vulnerability in Jenkins Build-Publisher plugin version 1.21 and earlier, allowing unencrypted storage of credentials, potentially leading to unauthorized access and data exposure.
In previous versions of the Jenkins Build-Publisher plugin, specifically version 1.21 and earlier, a vulnerability existed where credentials were stored in an unencrypted file, potentially exposing them to unauthorized access.
Understanding CVE-2017-1000387
This CVE entry highlights a security issue in the Jenkins Build-Publisher plugin that could lead to the exposure of sensitive credentials.
What is CVE-2017-1000387?
The vulnerability in Jenkins Build-Publisher plugin version 1.21 and earlier allowed credentials for other Jenkins instances to be stored in an unencrypted file, posing a security risk.
The Impact of CVE-2017-1000387
The exposure of unencrypted credentials could lead to unauthorized access to sensitive information, compromising the security of Jenkins instances and potentially exposing them to various attack scenarios.
Technical Details of CVE-2017-1000387
This section delves into the specific technical aspects of the vulnerability.
Vulnerability Description
The credentials for other Jenkins instances were stored in a file named hudson.plugins.build_publisher.BuildPublisher.xml in the Jenkins master home directory without encryption, enabling easy access to anyone with local file system permissions.
Affected Systems and Versions
- Jenkins Build-Publisher plugin version 1.21 and earlier
Exploitation Mechanism
The vulnerability allowed unauthorized access to credentials through scenarios like browser extensions, cross-site scripting vulnerabilities, and similar avenues.
Mitigation and Prevention
Protecting systems from this vulnerability requires immediate actions and long-term security practices.
Immediate Steps to Take
- Upgrade Jenkins Build-Publisher plugin to a secure version
- Avoid storing sensitive credentials in unencrypted files
- Monitor and restrict access to Jenkins master home directory
Long-Term Security Practices
- Implement encryption for sensitive data storage
- Regularly audit and review security configurations
- Educate users on secure credential management
Patching and Updates
- Apply patches and updates provided by Jenkins to address this vulnerability