CVE-2020-2281: CSRF vulnerability in Jenkins Lockable Resources Plugin
Summary
CVE-2020-2281: CSRF vulnerability in Jenkins Lockable Resources Plugin. Affects org.6wind.jenkins:lockable-resources versions < 2.9. Fixed in 2.9. How to fix ↓
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Background
The Jenkins Lockable Resources Plugin is a Maven package (org.6wind.jenkins:lockable-resources) that provides functionality for managing and reserving resources in Jenkins. It allows users to reserve, unreserve, unlock, and reset resources. However, versions 2.8 and earlier of the plugin do not require POST requests for several HTTP endpoints, making them vulnerable to cross-site request forgery (CSRF) attacks. This means that attackers can perform unauthorized actions on the resources, potentially disrupting the resource allocation process.
Vulnerability Detail
The vulnerability (CVE-2020-2281) in the Lockable Resources Plugin arises from the lack of POST request validation for certain HTTP endpoints. This allows malicious actors to exploit the CSRF vulnerability and perform actions such as reserving, unreserving, unlocking, and resetting resources without proper authorization. The impact of this vulnerability can range from resource allocation conflicts to unauthorized resource access, potentially leading to disruption of Jenkins workflows and unauthorized resource usage.
How To Fix
Minimum fixed version
2.9
This is the first release that contains the fix.
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Workaround
As a temporary workaround, users can implement CSRF protection mechanisms at the network or application level. This can include implementing CSRF tokens, validating referrer headers, or using frameworks that provide built-in CSRF protection. However, applying these workarounds may require additional configuration and development effort.
Conclusion
The CSRF vulnerability in the Jenkins Lockable Resources Plugin (CVE-2020-2281) can be mitigated by upgrading to version 2.9 or later. Implementing proper request validation for the affected HTTP endpoints ensures that unauthorized actions on resources are prevented. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The vulnerability allows attackers to perform unauthorized actions on resources, potentially disrupting resource allocation and leading to unauthorized resource usage.
Versions 2.8 and earlier of the Lockable Resources Plugin are affected by this vulnerability.
To mitigate this vulnerability, it is recommended to upgrade to Lockable Resources Plugin version 2.9 or later.
As a temporary workaround, users can implement CSRF protection mechanisms at the network or application level.
For more information about this vulnerability, you can refer to the CVE-2020-2281 advisory or the GitHub advisory database.
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