What is CVE-2021-43064?

CVE-2021-43064 is a vulnerability in Fortinet FortiWeb that allows an attacker to use the device as a proxy and reach external or protected hosts via redirection handlers.

Which versions of Fortinet FortiWeb are affected by CVE-2021-43064?

Versions 6.4.1, 6.4.0, 6.3.15 and below, 6.2.6 and below of Fortinet FortiWeb are affected by CVE-2021-43064.

What is the severity of CVE-2021-43064?

The severity of CVE-2021-43064 is medium with a CVSS score of 6.1.

How can an attacker exploit CVE-2021-43064?

An attacker can exploit CVE-2021-43064 by performing a URL redirection to an untrusted site, also known as an open redirect, which allows them to use the device as a proxy and reach external or protected hosts.

Is there a fix available for CVE-2021-43064?

Yes, Fortinet has released a fix for CVE-2021-43064. It is recommended to update to the latest version of Fortinet FortiWeb to address this vulnerability.

Vulnerability/
CVE-2021-43064

medium

6.1

CWE

601

8/12/2021

25/10/2024

CVE-2021-43064

First published: Wed Dec 08 2021(Updated: )

A url redirection to untrusted site ('open redirect') in Fortinet FortiWeb version 6.4.1 and 6.4.0, version 6.3.15 and below, version 6.2.6 and below allows attacker to use the device as a proxy and reach external or protected hosts via redirection handlers.

Credit: psirt@fortinet.com

Affected Software	Affected Version	How to fix
Fortinet FortiWeb	>=6.2.0<=6.2.6
Fortinet FortiWeb	>=6.3.0<=6.3.15
Fortinet FortiWeb	=6.4.0
Fortinet FortiWeb	=6.4.1

Remedy

https://fortiguard.com/advisory/FG-IR-21-168

Never miss a vulnerability like this again

Reference Links

https://fortiguard.com/advisory/FG-IR-21-168

Frequently Asked Questions

What is CVE-2021-43064?
CVE-2021-43064 is a vulnerability in Fortinet FortiWeb that allows an attacker to use the device as a proxy and reach external or protected hosts via redirection handlers.
Which versions of Fortinet FortiWeb are affected by CVE-2021-43064?
Versions 6.4.1, 6.4.0, 6.3.15 and below, 6.2.6 and below of Fortinet FortiWeb are affected by CVE-2021-43064.
What is the severity of CVE-2021-43064?
The severity of CVE-2021-43064 is medium with a CVSS score of 6.1.
How can an attacker exploit CVE-2021-43064?
An attacker can exploit CVE-2021-43064 by performing a URL redirection to an untrusted site, also known as an open redirect, which allows them to use the device as a proxy and reach external or protected hosts.
Is there a fix available for CVE-2021-43064?
Yes, Fortinet has released a fix for CVE-2021-43064. It is recommended to update to the latest version of Fortinet FortiWeb to address this vulnerability.

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vendor/fortinet
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version/fortinet fortiweb/6.2.0
version/fortinet fortiweb/6.2.6
version/fortinet fortiweb/6.3.0
version/fortinet fortiweb/6.3.15
version/fortinet fortiweb/6.4.0
version/fortinet fortiweb/6.4.1

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