CVE-2020-2166: RCE vulnerability in Jenkins Pipeline: AWS Steps Plugin
Summary
CVE-2020-2166: RCE vulnerability in Jenkins Pipeline: AWS Steps Plugin. Affects de.taimos:pipeline-aws versions < 1.41. Fixed in 1.41. How to fix ↓
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Background
The Jenkins Pipeline: AWS Steps Plugin is a Maven package that provides build steps for integrating AWS services into Jenkins pipelines. It allows users to interact with various AWS services and perform actions such as creating EC2 instances, deploying Lambda functions, and managing S3 buckets. This plugin is widely used in Jenkins environments that rely on AWS services for their CI/CD workflows.
Vulnerability Detail
The Pipeline: AWS Steps Plugin version 1.40 and earlier is vulnerable to a remote code execution (RCE) exploit. 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 steps. 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.
How To Fix
Minimum fixed version
1.41
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 plugin to mitigate the risk of remote code execution.
Conclusion
The RCE vulnerability in Jenkins Pipeline: AWS Steps Plugin (CVE-2020-2166) poses a significant risk to Jenkins environments using the affected plugin version. To mitigate this vulnerability, it is crucial to upgrade to version 1.41 or later of the plugin. For further support and assistance in vulnerability remediation, 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.
Users of Jenkins who have the Pipeline: AWS Steps Plugin version 1.40 or earlier installed are affected by this vulnerability.
There is no known public exploit for this vulnerability at the time of this report. However, it is crucial to update to the fixed version of the plugin to prevent potential exploitation.
The only effective mitigation for this vulnerability is to upgrade to version 1.41 or later of the Pipeline: AWS Steps Plugin.
For more information about this vulnerability, refer to the GitHub Security Advisory GHSA-w598-25hm-jqx3.
