CVE-2019-17655 : What You Need to Know

FortiOS SSL VPN and FortiProxy are affected by a cleartext storage vulnerability that could potentially lead to unauthorized access to user credentials.

Understanding CVE-2019-17655

This CVE involves a flaw in cleartext storage in FortiOS SSL VPN versions 6.2.0 through 6.2.2, 6.0.9, and earlier, as well as FortiProxy versions 2.0.0, 1.2.9, and earlier.

What is CVE-2019-17655?

A vulnerability in FortiOS SSL VPN and FortiProxy could allow unauthorized access to user credentials if an attacker can read the session file stored on the targeted device.

The Impact of CVE-2019-17655

CVSS Base Score: 5.3 (Medium)
Attack Vector: Network
Attack Complexity: Low
Confidentiality Impact: Low
Integrity Impact: None
Privileges Required: None
User Interaction: None
Scope: Unchanged

Technical Details of CVE-2019-17655

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability involves cleartext storage in FortiOS SSL VPN and FortiProxy, potentially exposing user credentials.

Affected Systems and Versions

Fortinet FortiOS versions 6.2.0 through 6.2.2, 6.0.9, and earlier
FortiProxy versions 2.0.0, 1.2.9, and earlier

Exploitation Mechanism

The flaw could be exploited by an attacker who can read the session file stored on the targeted device.

Mitigation and Prevention

Protect your systems from this vulnerability with the following steps:

Immediate Steps to Take

Update FortiOS SSL VPN and FortiProxy to the latest patched versions.
Monitor network traffic for any suspicious activity.
Educate users on secure VPN usage practices.

Long-Term Security Practices

Implement strong password policies and multi-factor authentication.
Regularly audit and review access controls.
Conduct security training for employees on identifying phishing attempts.

Patching and Updates

Apply security patches provided by Fortinet promptly to address this vulnerability.