CVE-2017-7735 : What You Need to Know

A Cross-Site Scripting vulnerability in Fortinet FortiOS versions 5.2.0 through 5.2.11 and 5.4.0 through 5.4.4 allows attackers to execute unauthorized code or commands via the "Groups" input while creating or editing User Groups.

Understanding CVE-2017-7735

Attackers can exploit a Cross-Site Scripting vulnerability in Fortinet FortiOS versions 5.2.0 through 5.2.11 and 5.4.0 through 5.4.4 to execute unauthorized code or commands.

What is CVE-2017-7735?

Attackers can execute unauthorized code or commands in Fortinet FortiOS versions 5.2.0 through 5.2.11 and 5.4.0 through 5.4.4 by exploiting a Cross-Site Scripting vulnerability.
The vulnerability occurs when creating or editing User Groups and inputting information in the "Groups" field.

The Impact of CVE-2017-7735

Allows attackers to execute unauthorized code or commands on affected systems.

Technical Details of CVE-2017-7735

A brief introduction for h2

Vulnerability Description

Type: Cross-Site Scripting (XSS)
Attack Vector: Remote
Complexity: Low
Authentication: Not required

Affected Systems and Versions

Product: Fortinet FortiOS
Vendor: Fortinet, Inc.
Versions Affected: FortiOS versions 5.2.0 through 5.2.11, and 5.4.0 through 5.4.4

Exploitation Mechanism

Attackers exploit the vulnerability by manipulating input in the "Groups" field while creating or editing User Groups.

Mitigation and Prevention

A brief introduction for h2

Immediate Steps to Take

Apply vendor-supplied patches or updates to fix the vulnerability.
Monitor network traffic for any signs of exploitation.
Restrict access to the vulnerable system.

Long-Term Security Practices

Regularly update and patch all software and systems.
Conduct security training to educate users on identifying and avoiding phishing attacks.

Patching and Updates

Fortinet has released patches to address the Cross-Site Scripting vulnerability in FortiOS versions 5.2.0 through 5.2.11 and 5.4.0 through 5.4.4.