CVE-2020-2168: RCE vulnerability in Jenkins Azure Container Service Plugin
Summary
CVE-2020-2168: RCE vulnerability in Jenkins Azure Container Service Plugin. Affects org.jenkins-ci.plugins:azure-acs versions < 1.0.2. Fixed in 1.0.2. How to fix ↓
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Background
The Jenkins Azure Container Service Plugin is a Maven package that provides integration between Jenkins and Azure Container Service. It allows users to build, deploy, and manage containers on Azure. The plugin enables seamless integration with Azure Container Service, providing a convenient way to automate container-based workflows within Jenkins.
Vulnerability Detail
The Azure Container Service Plugin version 1.0.1 and earlier is vulnerable to a remote code execution (RCE) attack. The plugin does not properly configure its YAML parser, allowing the instantiation of arbitrary types. This vulnerability can be exploited by users who can provide YAML input files to the plugin's build step. An attacker could craft a malicious YAML file that, when processed by the plugin, executes arbitrary code on the Jenkins server. This could lead to unauthorized access, data breaches, or further compromise of the Jenkins environment. The vulnerability has a CVSS score of 8.8, indicating a high severity level.
How To Fix
Minimum fixed version
1.0.2
This is the first release that contains the fix.
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Workaround
There is no known workaround for this vulnerability. It is essential to upgrade to the fixed version of the Azure Container Service Plugin to mitigate the risk of exploitation.
Conclusion
The Azure Container Service Plugin version 1.0.1 and earlier is vulnerable to a remote code execution (RCE) attack. It is crucial to upgrade to version 1.0.2 or later to mitigate the risk of exploitation. This upgrade ensures that the YAML parser is properly configured to prevent the instantiation of arbitrary types, enhancing the security of container workflows in Jenkins. For further support and guidance, please contact DevNack.com.
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FAQ
This vulnerability allows an attacker to execute arbitrary code on the Jenkins server, potentially leading to unauthorized access, data breaches, or further compromise of the Jenkins environment.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability. Vulert monitors and alerts in real-time for open-source vulnerabilities, using just the pom.xml file to provide accurate vulnerability information.
Yes, this vulnerability has a CVSS score of 8.8, indicating a high severity level.
There are no known public exploits for this vulnerability at the time of this report. However, it is crucial to apply the recommended fix to prevent potential exploitation.
For further support on vulnerability remediation, you can contact info@devnack.com. They can provide guidance and assistance in addressing this vulnerability.
