CVE-2021-44277 : Vulnerability Insights and Analysis

LibreNMS 21.11.0 is affected by a Cross Site Scripting (XSS) vulnerability in includes/html/common/alert-log.inc.php.

Understanding CVE-2021-44277

LibreNMS 21.11.0 has a security issue that could allow Cross Site Scripting attacks.

What is CVE-2021-44277?

CVE-2021-44277 is a Cross Site Scripting (XSS) vulnerability found in LibreNMS 21.11.0.

The Impact of CVE-2021-44277

This vulnerability could allow an attacker to execute malicious scripts in the context of an unsuspecting user's browser, potentially leading to unauthorized actions.

Technical Details of CVE-2021-44277

LibreNMS 21.11.0 is susceptible to XSS attacks due to inadequate input sanitization.

Vulnerability Description

The XSS vulnerability exists in the alert-log.inc.php file within the html/common directory of LibreNMS 21.11.0.

Affected Systems and Versions

Product: LibreNMS 21.11.0
Vendor: N/A
Versions: N/A

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts through crafted input, leading to script execution in the context of unsuspecting users.

Mitigation and Prevention

It is crucial to take immediate actions to mitigate the risks associated with CVE-2021-44277.

Immediate Steps to Take

Consider implementing input validation and output encoding to prevent XSS attacks.
Regularly monitor for unusual activities on LibreNMS systems.
Apply security patches and updates provided by LibreNMS.

Long-Term Security Practices

Educate users and administrators about the risks of XSS attacks and safe browsing habits.
Conduct regular security audits and penetration testing to identify and address vulnerabilities.

Patching and Updates

Stay informed about security advisories from LibreNMS and promptly apply patches to address known vulnerabilities.