CVE-2021-21325 : What You Need to Know
Learn about CVE-2021-21325, a stored XSS vulnerability in GLPI < 9.5.4. Understand the impact, affected systems, exploitation mechanism, and mitigation steps to secure your IT infrastructure.
GLPI is an open-source asset and IT management software package that provides ITIL Service Desk features, licenses tracking, and software auditing. In GLPI before version 9.5.4, a new budget type can be defined by the user. This input is not correctly filtered, leading to a cross-site scripting attack. The attacker needs to be authenticated to exploit this vulnerability. The issue has been addressed in version 9.5.4.
Understanding CVE-2021-21325
This section delves into the details of the stored XSS vulnerability in GLPI.
What is CVE-2021-21325?
CVE-2021-21325 refers to a stored cross-site scripting (XSS) vulnerability in GLPI before version 9.5.4. Attackers can exploit this issue to execute malicious scripts in the context of authenticated users.
The Impact of CVE-2021-21325
The impact of this vulnerability is rated as MEDIUM. It requires high privileges to exploit, resulting in a high integrity impact while confidentiality remains unaffected.
Technical Details of CVE-2021-21325
Let's dive deeper into the technical aspects of the CVE.
Vulnerability Description
The vulnerability arises from the incorrect filtering of user-defined budget types, allowing malicious scripts to be stored in the application.
Affected Systems and Versions
GLPI versions prior to 9.5.4 are affected by this stored XSS vulnerability.
Exploitation Mechanism
To exploit this vulnerability, an attacker must be authenticated within the system, enabling them to inject and store malicious scripts.
Mitigation and Prevention
Discover how to mitigate the risks associated with CVE-2021-21325.
Immediate Steps to Take
Users are advised to update their GLPI installations to version 9.5.4 or higher to address this vulnerability. Additionally, users should ensure proper authentication mechanisms are in place.
Long-Term Security Practices
In the long term, organizations should implement stringent input validation mechanisms and conduct regular security audits to detect and prevent similar vulnerabilities.
Patching and Updates
Stay informed about security patches and updates released by GLPI-project to protect your systems from potential exploits.