CVE-2020-2275: Arbitrary file read vulnerability in Copy data to workspace Jenkins Plugin
Summary
CVE-2020-2275: Arbitrary file read vulnerability in Copy data to workspace Jenkins Plugin. Affects org.jvnet.hudson.plugins:copy-data-to-workspace-plugin versions < 1.0. No fix is published. How to fix ↓
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Background
The Copy data to workspace Jenkins Plugin is a Maven package (org.jvnet.hudson.plugins:copy-data-to-workspace-plugin) that allows users to copy data from the Jenkins controller to job workspaces. It provides a convenient way to transfer files and directories between the controller and job workspaces. However, versions 1.0 and earlier of this plugin do not enforce restrictions on the directories that can be copied, which can lead to an arbitrary file read vulnerability.
Vulnerability Detail
The vulnerability (CVE-2020-2275) in the Copy data to workspace Jenkins Plugin allows attackers with Job/Configure permission to read arbitrary files on the Jenkins controller. This means that an attacker who has the necessary permissions can access sensitive information stored on the controller, potentially leading to unauthorized disclosure of confidential data. The vulnerability has a CVSS score of 6.5, indicating a moderate severity level.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, users can revoke the Job/Configure permission from any untrusted users to mitigate the risk of arbitrary file reads. By limiting the permissions of potential attackers, the likelihood of exploitation can be reduced. However, this is not a permanent solution and should be combined with the recommended fix of upgrading to a patched version of the plugin.
Conclusion
The Copy data to workspace Jenkins Plugin version 1.0 and earlier is vulnerable to an arbitrary file read issue, allowing attackers with Job/Configure permission to access sensitive files on the Jenkins controller. To mitigate this risk, it is recommended to upgrade to a patched version of the plugin and follow the provided fix instructions. Additionally, temporarily revoking the Job/Configure permission from untrusted users can help reduce the likelihood of exploitation. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
The vulnerability allows attackers to read arbitrary files on the Jenkins controller, potentially exposing sensitive information and leading to unauthorized disclosure of data.
Users of the Copy data to workspace Jenkins Plugin version 1.0 and earlier are affected by this vulnerability. Specifically, attackers with Job/Configure permission can exploit this issue.
At the time of this report, there is no known public exploit for this vulnerability. However, it is important to apply the recommended fix to prevent potential exploitation.
A temporary mitigation is to revoke the Job/Configure permission from untrusted users. This can reduce the risk of unauthorized file reads. However, the recommended fix is to upgrade to a patched version of the plugin.
For more information about this vulnerability, you can refer to the CVE-2020-2275 entry or consult the official documentation and support channels for the Copy data to workspace Jenkins Plugin.
