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Fortinet Warns of Active Exploitation of FortiOS SSL VPN 2FA Bypass Vulnerability

The Hacker News
Actively Exploited
CVEFortinetVulnerabilityCritical

Overview

Fortinet has reported that a five-year-old vulnerability in its FortiOS SSL VPN is being actively exploited. This flaw, identified as CVE-2020-12812, allows attackers to bypass two-factor authentication under specific configurations, enabling unauthorized access to systems. Organizations using affected versions of FortiOS SSL VPN should be particularly vigilant, as this vulnerability could lead to significant security breaches. The issue emphasizes the need for users to ensure their VPN configurations are secure and up-to-date. Fortinet's warning serves as a critical reminder of the importance of addressing known vulnerabilities, even those that have been around for several years.

Key Takeaways

  • Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
  • Affected Systems: FortiOS SSL VPN (specifically affected configurations), Fortinet products utilizing this version
  • Action Required: Users should apply the latest patches provided by Fortinet for FortiOS.
  • Timeline: Disclosed on May 2020

Original Article Summary

Fortinet on Wednesday said it observed "recent abuse" of a five-year-old security flaw in FortiOS SSL VPN in the wild under certain configurations. The vulnerability in question is CVE-2020-12812 (CVSS score: 5.2), an improper authentication vulnerability in SSL VPN in FortiOS that could allow a user to log in successfully without being prompted for the second factor of authentication if the

Impact

FortiOS SSL VPN (specifically affected configurations), Fortinet products utilizing this version

Exploitation Status

This vulnerability is confirmed to be actively exploited by attackers in real-world attacks. Organizations should prioritize patching or implementing workarounds immediately.

Timeline

Disclosed on May 2020

Remediation

Users should apply the latest patches provided by Fortinet for FortiOS. Additionally, they should review and adjust their SSL VPN configurations to ensure that two-factor authentication is enforced correctly.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to CVE, Fortinet, Vulnerability, and 1 more.

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