CVE-2021-41032 : Vulnerability Insights and Analysis

An improper access control vulnerability in FortiOS allows for unauthorized access to sensitive information and SSL-VPN tunnel modification.

Understanding CVE-2021-41032

An improper access control vulnerability in FortiOS versions 6.4.8 and prior, and 7.0.3 and prior, enables authenticated attackers to gather sensitive data and manipulate SSL-VPN tunnel status.

What is CVE-2021-41032?

The vulnerability in FortiOS could permit authenticated attackers with limited user profiles to access and modify SSL-VPN tunnel statuses in other VDOMs through specific CLI commands.

The Impact of CVE-2021-41032

CVSS Base Score: 6.3 (Medium)
Attack Vector: Network
Exploit Code Maturity: High
Confidentiality Impact: Low
Integrity Impact: Low
Privileges Required: Low
Remediation Level: Workaround

Technical Details of CVE-2021-41032

FortiOS vulnerability details and affected systems.

Vulnerability Description

The vulnerability allows an authenticated attacker with restricted user roles to gain unauthorized access to sensitive data and manipulate SSL-VPN tunnel status in other VDOMs using specific CLI commands.

Affected Systems and Versions

Fortinet FortiOS versions 6.2.0 to 6.4.8, and 7.0.0 to 7.0.3

Exploitation Mechanism

Attackers with restricted user profiles exploit the vulnerability by issuing specific CLI commands to access sensitive information and alter SSL-VPN tunnel status.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of the vulnerability.

Immediate Steps to Take

Apply the workaround provided by the vendor
Monitor network for any unauthorized access or manipulation
Restrict user privileges to reduce exposure

Long-Term Security Practices

Regularly update FortiOS to the latest version
Conduct security training for users on access control and CLI best practices

Patching and Updates

Fortinet may release patches to address the vulnerability, so ensure to apply updates promptly.