CVE-2021-24011 Explained : Impact and Mitigation
Learn about CVE-2021-24011, a privilege escalation vulnerability in Fortinet FortiNAC versions below 8.8.2. Understand the impact, affected systems, and mitigation steps.
A privilege escalation vulnerability in FortiNAC version below 8.8.2 may allow an admin user to escalate the privileges to root by abusing the sudo privileges.
Understanding CVE-2021-24011
This CVE refers to a privilege escalation vulnerability in Fortinet FortiNAC products that are version 8.8.1 and below. The vulnerability could be exploited by an admin user to elevate their privileges to root level.
What is CVE-2021-24011?
CVE-2021-24011 is a vulnerability in Fortinet FortiNAC versions earlier than 8.8.2. It allows an admin user to escalate their privileges to root through the abuse of sudo privileges.
The Impact of CVE-2021-24011
The impact of this vulnerability is rated as medium severity with a CVSS base score of 6.3. It requires low attack complexity and has low impacts on availability, confidentiality, and integrity. No special privileges are needed for exploitation.
Technical Details of CVE-2021-24011
This section covers the technical aspects of the CVE.
Vulnerability Description
The vulnerability in FortiNAC versions prior to 8.8.2 enables an admin user to escalate their privileges to root by misusing sudo rights.
Affected Systems and Versions
Fortinet FortiNAC versions 8.8.1 and below are affected by this privilege escalation vulnerability.
Exploitation Mechanism
Admin users can exploit this vulnerability to escalate their privileges to root level without the need for any special privileges.
Mitigation and Prevention
To secure your environment from CVE-2021-24011, follow the below steps.
Immediate Steps to Take
Ensure FortiNAC is updated to version 8.8.2 or higher to mitigate the vulnerability. Monitor admin user activities for any unauthorized escalation attempts.
Long-Term Security Practices
Implement the principle of least privilege, regularly review admin privileges, and conduct security trainings to prevent privilege escalation attacks.
Patching and Updates
Frequently check for security updates from Fortinet and apply patches to address known vulnerabilities.