CVE-2023-4979: LibreNMS Cross-site Scripting vulnerability
Summary
CVE-2023-4979: LibreNMS Cross-site Scripting vulnerability. Affects librenms/librenms versions < 23.9.0. Fixed in 23.9.0. How to fix ↓
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Background
LibreNMS is an open-source network monitoring and management system. It provides a comprehensive platform for monitoring network devices, servers, and applications. The vulnerability in question is a Cross-site Scripting (XSS) vulnerability that exists in versions of LibreNMS prior to 23.9.0.
Vulnerability Detail
The Cross-site Scripting (XSS) vulnerability allows an attacker to inject malicious scripts into web pages viewed by other users. This can lead to various attacks, such as stealing sensitive information, performing actions on behalf of the user, or redirecting the user to malicious websites. The vulnerability originates from improper input sanitization in the affected versions of LibreNMS.
How To Fix
Minimum fixed version
23.9.0
This is the first release that contains the fix.
composer require librenms/librenms:23.9.0Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users can implement input validation and sanitization measures in their own code to mitigate the risk of XSS attacks. This can involve using security libraries or frameworks that provide built-in protection against XSS vulnerabilities.
Conclusion
The Cross-site Scripting (XSS) vulnerability in LibreNMS prior to version 23.9.0 poses a significant security risk. It is crucial for users of LibreNMS to upgrade to the latest version to ensure the vulnerability is addressed. Implementing input validation and sanitization measures can also provide temporary protection. For further support on vulnerability remediation, you can contact DevNack.com.
See every vulnerability recorded for librenms/librenms →
FAQ
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 attacks, such as stealing sensitive information or performing actions on behalf of the user.
The XSS vulnerability in LibreNMS allows attackers to inject malicious scripts into the web pages viewed by users. This can potentially lead to the theft of sensitive information or the execution of unauthorized actions on behalf of the user.
Yes, the XSS vulnerability in LibreNMS can be fixed by upgrading to version 23.9.0 or later. This version includes the necessary fixes to prevent the XSS vulnerability.
As a temporary workaround, users can implement input validation and sanitization measures in their own code to mitigate the risk of XSS attacks. This can involve using security libraries or frameworks that provide built-in protection against XSS vulnerabilities.
For more information about the LibreNMS XSS vulnerability, you can refer to the official advisory provided by the GitHub Advisory Database. The advisory contains detailed information about the vulnerability, including its impact and the recommended fix.
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