CVE-2021-45029: Code Injection in Apache ShenYu
Summary
CVE-2021-45029: Code injection in ShenYu. Affects org.apache.shenyu:shenyu-common versions >= 2.4.0, < 2.4.2. Fixed in 2.4.2. How to fix ↓
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Background
Apache ShenYu is an open-source project that provides a lightweight, high-performance, and scalable API gateway. It is designed to handle large amounts of traffic and provide various features such as load balancing, rate limiting, and authentication. The vulnerable package in focus is 'org.apache.shenyu:shenyu-common', which is a common module used by ShenYu. This package is written in Java and is responsible for providing common functionalities and utilities to other components of ShenYu.
Vulnerability Detail
The vulnerability identified as CVE-2021-45029 is a code injection vulnerability that affects Apache ShenYu versions 2.4.0 and 2.4.1. It specifically involves Groovy Code Injection and SpEL (Spring Expression Language) Injection, which can lead to remote code execution. An attacker can exploit this vulnerability by injecting malicious code into the affected application, potentially gaining unauthorized access, executing arbitrary commands, or causing other malicious activities. This vulnerability is considered critical with a CVSS score of 9.8.
How To Fix
Minimum fixed version
2.4.2
This is the first release that contains the fix.
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Workaround
As a temporary workaround, developers can implement input validation and sanitization techniques to mitigate the risk of code injection. This involves validating and filtering user input to ensure it adheres to expected formats and does not contain any malicious code. It is recommended to use secure coding practices and frameworks that provide built-in protection against code injection vulnerabilities.
Conclusion
In conclusion, the code injection vulnerability in Apache ShenYu (CVE-2021-45029) poses a significant risk to applications utilizing the 'org.apache.shenyu:shenyu-common' package. It is crucial to promptly update to the latest version of the package and implement secure coding practices to mitigate the risk of code injection attacks. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
Apache ShenYu is an open-source API gateway that provides various features such as load balancing, rate limiting, and authentication. It is designed to handle high traffic loads and improve the performance of microservices architectures.
This vulnerability allows an attacker to inject malicious code into the affected application, potentially leading to remote code execution. This can result in unauthorized access, data breaches, and other malicious activities.
You can use Vulert's playground (https://vulert.com/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 of your project.
Yes, a fix is available for this vulnerability. It is recommended to upgrade the 'org.apache.shenyu:shenyu-common' package to version 2.4.2 or later to mitigate the risk of code injection.
If you suspect that your application is affected by this vulnerability, it is recommended to upgrade the 'org.apache.shenyu:shenyu-common' package to the latest version as soon as possible. Additionally, review your application's code for any potential code injection vulnerabilities and implement input validation and sanitization techniques.
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