CVE-2020-17523: Authentication bypass in Apache Shiro
Summary
CVE-2020-17523: Authentication bypass in Apache Shiro. Affects org.apache.shiro:shiro-web versions < 1.7.1. Fixed in 1.7.1. How to fix ↓
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Background
Apache Shiro is a powerful and easy-to-use Java security framework that provides authentication, authorization, cryptography, and session management capabilities. It is commonly used in web applications to secure user access and protect sensitive data. However, versions before 1.7.1 of Apache Shiro, when used with Spring, are vulnerable to an authentication bypass. This vulnerability can be exploited by sending a specially crafted HTTP request, leading to unauthorized access to protected resources.
Vulnerability Detail
The vulnerability (CVE-2020-17523) in Apache Shiro allows an attacker to bypass authentication and gain unauthorized access to protected resources. By exploiting this vulnerability, an attacker can send a specially crafted HTTP request that bypasses the authentication process. This can result in unauthorized access to sensitive data, privilege escalation, and potential compromise of the entire application. The vulnerability has a CVSS score of 9.8, indicating its critical severity.
How To Fix
Minimum fixed version
1.7.1
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 Apache Shiro to mitigate the risk of authentication bypass.
Conclusion
The authentication bypass vulnerability in Apache Shiro (CVE-2020-17523) poses a significant risk to applications using affected versions. To mitigate this vulnerability, it is crucial to upgrade to Apache Shiro version 1.7.1 or later. This upgrade will address the authentication bypass issue and ensure the security of your application. For further support on vulnerability remediation, contact DevNack.com.
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FAQ
Apache Shiro is a Java security framework that provides authentication, authorization, cryptography, and session management capabilities for web applications.
This vulnerability allows an attacker to bypass authentication and gain unauthorized access to protected resources. It can lead to unauthorized data access, privilege escalation, and potential compromise of the entire application.
To fix this vulnerability, upgrade to Apache Shiro version 1.7.1 or later. Update the affected package in your Maven project and rebuild your application.
No, there is no known workaround for this vulnerability. It is crucial to upgrade to the fixed version of Apache Shiro.
The CVSS score of this vulnerability is 9.8, indicating its critical severity.
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