CVE-2019-17651 Explained : Impact and Mitigation

FortiSIEM version 5.2.5 and earlier contain an input vulnerability that allows a remote authenticated attacker to execute a Stored Cross-Site Scripting attack.

Understanding CVE-2019-17651

What is CVE-2019-17651?

FortiSIEM version 5.2.5 and below have a vulnerability in the description and title parameters of a Device Maintenance Schedule, enabling attackers to inject malicious JavaScript code.

The Impact of CVE-2019-17651

This vulnerability can be exploited by a remote authenticated attacker to execute a Stored Cross-Site Scripting attack (XSS) by inserting malicious JavaScript code into the description field of a Device Maintenance schedule.

Technical Details of CVE-2019-17651

Vulnerability Description

An Improper Neutralization of Input vulnerability in the description and title parameters of a Device Maintenance Schedule in FortiSIEM version 5.2.5 and below may allow a remote authenticated attacker to perform a Stored Cross-Site Scripting attack (XSS) by injecting malicious JavaScript code into the description field of a Device Maintenance schedule.

Affected Systems and Versions

Product: Fortinet FortiSIEM
Vendor: Fortinet
Versions Affected: FortiSIEM version 5.2.5 and below

Exploitation Mechanism

The vulnerability can be exploited by a remote authenticated attacker to execute a Stored Cross-Site Scripting attack (XSS) by inserting malicious JavaScript code into the description field of a Device Maintenance schedule.

Mitigation and Prevention

Immediate Steps to Take

Upgrade FortiSIEM to a version that includes a patch for this vulnerability.
Monitor and restrict access to the affected parameters.

Long-Term Security Practices

Regularly update and patch FortiSIEM to prevent known vulnerabilities.
Educate users on secure coding practices to prevent XSS attacks.

Patching and Updates

Apply the latest patches and updates provided by Fortinet to address this vulnerability.