CVE-2021-28054 : Exploit Details and Defense Strategies

An issue was discovered in Centreon-Web in Centreon Platform 20.10.0, allowing remote authenticated users to inject arbitrary web script or HTML via the Alias parameter.

Understanding CVE-2021-28054

This CVE involves a Stored Cross-Site Scripting (XSS) vulnerability in Centreon-Web that can be exploited by remote authenticated users.

What is CVE-2021-28054?

CVE-2021-28054 is a security flaw in Centreon Platform 20.10.0 that enables attackers to insert malicious web scripts or HTML code via the Alias parameter in the "Configuration > Hosts" section.

The Impact of CVE-2021-28054

The impact of this CVE allows attackers to execute arbitrary code within the context of the affected site, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2021-28054

This section provides technical details about the vulnerability, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability arises due to improper input validation in the Alias parameter, leading to the execution of arbitrary scripts or HTML code.

Affected Systems and Versions

Centreon Platform 20.10.0 is confirmed to be affected by this security issue.

Exploitation Mechanism

Remote authenticated users can leverage this vulnerability by injecting malicious scripts or HTML via the Alias parameter in the "Configuration > Hosts" section.

Mitigation and Prevention

To safeguard systems from CVE-2021-28054, immediate steps should be taken along with establishing long-term security practices.

Immediate Steps to Take

Ensure to update Centreon Platform to a patched version and monitor for any unauthorized activities on the network.

Long-Term Security Practices

Incorporate secure coding practices, conduct regular security audits, and educate users about the risks of executing unauthorized scripts.

Patching and Updates

Regularly apply security patches provided by Centreon and stay informed about new releases to mitigate the risk of XSS attacks.