CVE-2017-1000362 : Vulnerability Insights and Analysis
Learn about CVE-2017-1000362, a Jenkins vulnerability where re-encryption of secrets in JENKINS_HOME created accessible backup directories. Find mitigation steps and long-term security practices here.
Jenkins 1.498 introduced the re-key admin monitor, which re-encrypted all secrets in JENKINS_HOME with a new key. This led to the creation of a backup directory containing old secrets and encryption keys, accessible to anyone. While Jenkins now automatically deletes the backup directory, upgrading from a version before 1.498 eliminates its creation. Administrators should be cautious about manually created backups.
Understanding CVE-2017-1000362
This CVE highlights a security issue in Jenkins related to the handling of secret data during the re-encryption process.
What is CVE-2017-1000362?
The introduction of the re-key admin monitor in Jenkins 1.498 resulted in the re-encryption of all secrets in JENKINS_HOME using a new key. It also created a backup directory with old secrets and encryption keys, which were not removed after the process.
The Impact of CVE-2017-1000362
The vulnerability allowed unauthorized access to sensitive information, potentially compromising the security and confidentiality of the Jenkins environment.
Technical Details of CVE-2017-1000362
This section provides more in-depth technical insights into the vulnerability.
Vulnerability Description
The re-key admin monitor in Jenkins 1.498 re-encrypted secrets, creating accessible backup directories with old secrets and encryption keys.
Affected Systems and Versions
- Product: Jenkins
- Vendor: Jenkins
- Versions: All versions prior to 1.498
Exploitation Mechanism
Unauthorized users could access the backup directories containing sensitive information, leading to potential data breaches.
Mitigation and Prevention
Protecting systems from CVE-2017-1000362 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Upgrade Jenkins to version 1.498 or newer to prevent the creation of backup directories with sensitive information.
- Manually check for the presence of the backup directory $JENKINS_HOME/jenkins.security.RekeySecretAdminMonitor/backups and delete it if found.
Long-Term Security Practices
- Regularly update Jenkins to the latest versions to ensure security patches are applied promptly.
- Implement access controls and encryption mechanisms to safeguard sensitive data.
Patching and Updates
Stay informed about security advisories and apply patches promptly to address any known vulnerabilities.