CVE-2019-10362: Improper Encoding or Escaping of Output in Jenkins Configuration as Code Plugin
Summary
CVE-2019-10362: Improper Encoding or Escaping of Output in Jenkins Configuration as Code Plugin. Affects io.jenkins:configuration-as-code versions < 1.25. Fixed in 1.25. How to fix ↓
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Background
Jenkins Configuration as Code Plugin is a Maven package that allows users to define Jenkins configuration in a YAML file. It provides a convenient way to manage and version control Jenkins system configuration. The plugin enables users to import and export configuration files, making it easier to replicate and share Jenkins setups. However, versions 1.24 and earlier of the plugin suffer from a vulnerability that allows attackers with permission to change Jenkins system configuration to obtain the values of environment variables. This vulnerability arises due to improper encoding or escaping of output during configuration import when exporting.
Vulnerability Detail
The vulnerability in Jenkins Configuration as Code Plugin (CVE-2019-10362) allows attackers with permission to change Jenkins system configuration to access the values of environment variables. This occurs because the plugin does not properly escape values, resulting in variable interpolation during configuration import when exporting. As a result, an attacker can exploit this vulnerability to obtain sensitive information, potentially leading to further compromise of the Jenkins system. The vulnerability has a CVSS score of 5.4, indicating a moderate severity level.
How To Fix
Minimum fixed version
1.25
This is the first release that contains the fix.
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Workaround
There is no specific workaround provided for this vulnerability. However, users can consider implementing general security best practices such as restricting access to Jenkins system configuration and environment variables to trusted individuals or groups. Regularly monitoring and auditing changes to Jenkins configuration can also help detect any unauthorized access or modifications.
Conclusion
The vulnerability in Jenkins Configuration as Code Plugin (CVE-2019-10362) exposes environment variable values to attackers with permission to change Jenkins system configuration. To mitigate this risk, it is crucial to update the plugin to version 1.25 or later. Regularly monitoring and auditing changes to Jenkins configuration can also help detect any unauthorized access or modifications. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
Jenkins Configuration as Code Plugin is a Maven package that allows users to define Jenkins configuration in a YAML file. It simplifies the management and version control of Jenkins system configuration.
The vulnerability allows attackers with permission to change Jenkins system configuration to obtain the values of environment variables. This can lead to the exposure of sensitive information and potential compromise of the Jenkins system.
To fix this vulnerability, update Jenkins Configuration as Code Plugin to version 1.25 or later. Ensure you are using the latest version of the plugin to mitigate the risk.
There are no specific workarounds provided for this vulnerability. However, implementing general security best practices such as restricting access to Jenkins system configuration and monitoring changes can help mitigate the risk.
The vulnerability has a CVSS score of 5.4, indicating a moderate severity level.
References
Related vulnerabilities
Recent vulnerabilities recorded for io.jenkins:configuration-as-code.
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