CVE-2020-2208: Secret stored in plain text by Jenkins Slack Upload Plugin
Summary
CVE-2020-2208: Secret stored in plain text by Jenkins Slack Upload Plugin. Affects org.jenkins-ci.plugins:slack-uploader versions < 1.7. No fix is published. How to fix ↓
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Background
The Jenkins Slack Upload Plugin is a Maven package (org.jenkins-ci.plugins:slack-uploader) that allows users to upload files to Slack as part of their Jenkins job. It provides integration between Jenkins and Slack, enabling users to easily share files and information with their team. However, versions 1.7 and earlier of the plugin have a vulnerability that exposes a secret stored in plain text in the job config.xml files on the Jenkins master. This secret can be viewed by users with Extended Read permission or access to the master file system.
Vulnerability Detail
The vulnerability (CVE-2020-2208) in the Jenkins Slack Upload Plugin allows unauthorized users to access a secret stored in plain text. This secret is stored in the job config.xml files on the Jenkins master, making it accessible to users with Extended Read permission or access to the master file system. This vulnerability poses a moderate risk as it can potentially expose sensitive information to unauthorized individuals. The Common Weakness Enumeration (CWE) ID associated with this vulnerability is CWE-256.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a workaround, users can manually encrypt the secret in the job config.xml file. This can be done by using a secure encryption algorithm and storing the encrypted secret in the file instead of the plain text. However, this workaround requires manual intervention and may not be feasible for all users. It is recommended to apply the fix provided by the plugin maintainers.
Conclusion
The Jenkins Slack Upload Plugin versions 1.7 and earlier have a vulnerability that exposes a secret stored in plain text. This can potentially lead to unauthorized access to sensitive information. Users should upgrade to a non-affected version of the plugin or apply the recommended workaround. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for org.jenkins-ci.plugins:slack-uploader →
FAQ
This vulnerability allows unauthorized users to view a secret stored in plain text. Depending on the nature of the secret, this can lead to unauthorized access to sensitive information or systems.
Users of Jenkins Slack Upload Plugin versions 1.7 and earlier are affected by this vulnerability.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your Jenkins instance is affected by this vulnerability. Simply enter your pom.xml file and the playground will analyze it for any open-source vulnerabilities, including this one.
Yes, users can fix this vulnerability by upgrading to a version of the Jenkins Slack Upload Plugin that is not affected by the issue. It is recommended to update to the latest version available.
Yes, a workaround is available where users can manually encrypt the secret in the job config.xml file. However, this workaround requires manual intervention and may not be feasible for all users. It is recommended to apply the fix provided by the plugin maintainers.
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