CVE-2021-36737: Cross-site Scripting in Apache Pluto
Summary
CVE-2021-36737: Cross-site Scripting in Apache Pluto. Affects org.apache.portals.pluto:pluto-portal versions < 3.1.1. Fixed in 3.1.1. How to fix ↓
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Background
Apache Pluto is a Java-based open-source project that provides a portlet container for executing Java Portlet Specification (JSR 286) compliant portlets. It allows developers to create and deploy portlet applications within a portal server. The vulnerable component, org.apache.portals.pluto:pluto-portal, is a Maven package that is part of the Apache Pluto project.
Vulnerability Detail
The input fields of the Apache Pluto UrlTestPortlet are vulnerable to Cross-Site Scripting (XSS) attacks. This means that an attacker can inject malicious scripts into the input fields, which will be executed by the victim's browser. This can lead to various security risks, such as stealing sensitive information, session hijacking, or performing unauthorized actions on behalf of the victim. The vulnerability has been assigned the identifier CVE-2021-36737 and has a severity level of MODERATE according to the Common Vulnerability Scoring System (CVSS). The vulnerability was discovered on January 8, 2022, and has been reviewed by GitHub.
How To Fix
Minimum fixed version
3.1.1
This is the first release that contains the fix.
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Workaround
If upgrading to the fixed version is not immediately feasible, a temporary workaround can be implemented to mitigate the risk. One possible workaround is to implement input validation and sanitization on the server-side to prevent the execution of malicious scripts. This can be achieved by using libraries or frameworks that provide built-in protection against XSS attacks, such as OWASP Java Encoder. Additionally, implementing Content Security Policy (CSP) headers can help mitigate the impact of XSS attacks by restricting the execution of scripts from unauthorized sources.
Conclusion
In conclusion, the Apache Pluto UrlTestPortlet is vulnerable to Cross-Site Scripting (XSS) attacks. Users should upgrade to version 3.1.1 of the v3-demo-portlet.war artifact to fix this vulnerability. If immediate upgrade is not possible, implementing input validation, sanitization, and Content Security Policy (CSP) headers can provide temporary mitigation. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
Apache Pluto is a Java-based open-source project that provides a portlet container for executing Java Portlet Specification (JSR 286) compliant portlets.
Cross-Site Scripting (XSS) is a type of security vulnerability that allows attackers to inject malicious scripts into web pages viewed by other users. This can lead to various security risks, such as stealing sensitive information or performing unauthorized actions on behalf of the victim.
The impact of this vulnerability is that an attacker can inject and execute malicious scripts in the input fields of the Apache Pluto UrlTestPortlet. This can lead to various security risks, such as stealing sensitive information, session hijacking, or performing unauthorized actions on behalf of the victim.
To fix this vulnerability, users should migrate to version 3.1.1 of the v3-demo-portlet.war artifact. This version includes the necessary security patches to mitigate the XSS vulnerability. Users can update their dependencies by modifying the Maven configuration file (pom.xml) to include the updated version of the package. After updating the package, the application should be rebuilt and redeployed to ensure the fix is applied.
If upgrading to the fixed version is not immediately feasible, a temporary workaround can be implemented to mitigate the risk. One possible workaround is to implement input validation and sanitization on the server-side to prevent the execution of malicious scripts. Additionally, implementing Content Security Policy (CSP) headers can help mitigate the impact of XSS attacks by restricting the execution of scripts from unauthorized sources.
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