CVE-2021-27781 Explained : Impact and Mitigation
Learn about CVE-2021-27781 affecting HCL BigFix Mobile / Modern Client Management. Find out the impact, technical details, mitigation steps, and prevention methods for this stored cross-site scripting vulnerability.
A stored cross-site scripting vulnerability in HCL BigFix Mobile / Modern Client Management could allow a Master operator to embed a script tag in HTML with an alert pop-up displaying cookie information.
Understanding CVE-2021-27781
This CVE relates to a vulnerability in HCL BigFix Mobile / Modern Client Management that enables a specific manipulation by a Master operator leading to potential cross-site scripting attacks.
What is CVE-2021-27781?
The vulnerability in HCL BigFix Mobile / Modern Client Management allows the embedding of a script tag in HTML with an alert pop-up for cookie display, posing a security risk.
The Impact of CVE-2021-27781
The impact of this vulnerability is rated as medium severity with a CVSS base score of 6.6, mainly affecting confidentiality, integrity, and availability aspects of the affected systems.
Technical Details of CVE-2021-27781
This section provides in-depth technical details regarding the vulnerability, including the description, affected systems and versions, and the exploitation mechanism.
Vulnerability Description
The vulnerability allows the Master operator to inject a script tag in HTML, triggering an alert pop-up that displays sensitive cookie information.
Affected Systems and Versions
HCL BigFix Mobile / Modern Client Management version 2.0 is confirmed to be impacted by this stored cross-site scripting vulnerability.
Exploitation Mechanism
The vulnerability can be exploited by a high-privileged Master operator who manipulates the system to embed a malicious script element in HTML.
Mitigation and Prevention
In order to mitigate the risks associated with CVE-2021-27781, users are advised to take immediate action and implement long-term security practices while ensuring timely patching and updates.
Immediate Steps to Take
Immediate actions include restricting Master operator access, monitoring for any suspicious activities, and educating users about phishing attempts.
Long-Term Security Practices
Long-term measures involve regular security audits, staying updated on security trends, and conducting comprehensive training sessions for the team.
Patching and Updates
Applying the latest patches and updates released by HCL Software to address the vulnerability is essential to prevent exploitation and enhance system security.