CVE-2021-37391 Explained : Impact and Mitigation
Learn about CVE-2021-37391, a stored XSS vulnerability in Chamilo LMS 1.11.14 that allows unauthorized users to execute arbitrary code or steal data. Find out the impact, technical details, and mitigation steps.
A stored XSS vulnerability in Chamilo LMS 1.11.14 allows a user without privileges to send an invitation message to another user, potentially resulting in the theft of cookies or execution of arbitrary code on the administration side through the 'send invitation' feature.
Understanding CVE-2021-37391
This CVE describes a security issue in Chamilo LMS 1.11.14 that can be exploited by a user without privileges to perform malicious actions.
What is CVE-2021-37391?
The vulnerability in Chamilo LMS 1.11.14 allows unauthorized users to send harmful messages leading to the execution of arbitrary code or the theft of sensitive information on the administrator's session.
The Impact of CVE-2021-37391
Exploiting this vulnerability can result in unauthorized access to the administration side of Chamilo LMS, potentially compromising the system's security and integrity.
Technical Details of CVE-2021-37391
This section provides more technical details about the vulnerability in Chamilo LMS 1.11.14.
Vulnerability Description
The vulnerability allows users without privileges to send invitation messages via the social networking feature, leading to stored XSS attacks and potential code execution or data theft.
Affected Systems and Versions
Chamilo LMS version 1.11.14 is specifically affected by this vulnerability, potentially putting systems with this version at risk.
Exploitation Mechanism
The vulnerability can be exploited by unauthorized users leveraging the 'send invitation' feature in Chamilo LMS to inject malicious scripts and execute arbitrary code.
Mitigation and Prevention
To address and prevent the exploitation of CVE-2021-37391 in Chamilo LMS 1.11.14, certain measures should be taken.
Immediate Steps to Take
Users should restrict access to the 'send invitation' feature to prevent unauthorized users from sending harmful messages. Additionally, monitoring for unusual activities is recommended.
Long-Term Security Practices
Regular security audits, user privilege reviews, and security awareness training can help prevent similar vulnerabilities in the future.
Patching and Updates
It is crucial to apply patches and updates released by Chamilo LMS promptly to mitigate the vulnerability and enhance the overall security posture.