What is CVE-2021-43071?

CVE-2021-43071 is a heap-based buffer overflow vulnerability in Fortinet FortiWeb.

What versions of Fortinet FortiWeb are affected by CVE-2021-43071?

Fortinet FortiWeb versions 6.4.1, 6.4.0, 6.3.15 and below, and 6.2.6 and below are affected.

What is the severity of CVE-2021-43071?

CVE-2021-43071 has a severity score of 8.8, which is classified as high.

How can an attacker exploit CVE-2021-43071?

An attacker can exploit CVE-2021-43071 by sending crafted HTTP requests to the LogReport API controller.

Is there a fix available for CVE-2021-43071?

Yes, Fortinet has released patches and updates to fix CVE-2021-43071. Please refer to the Fortinet advisory for more information.

Vulnerability/
CVE-2021-43071

high

8.8

CWE

787 119

9/12/2021

21/11/2024

CVE-2021-43071: Buffer Overflow

First published: Thu Dec 09 2021(Updated: )

A heap-based buffer overflow 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 execute unauthorized code or commands via crafted HTTP requests to the LogReport API controller.

Credit: psirt@fortinet.com psirt@fortinet.com

Affected Software	Affected Version	How to fix
Fortinet FortiWeb	>=6.2.0<=6.2.6
Fortinet FortiWeb	>=6.3.0<=6.3.16
Fortinet FortiWeb	=6.4.0
Fortinet FortiWeb	=6.4.1
	>=6.2.0<=6.2.6
	>=6.3.0<=6.3.16
	=6.4.0
	=6.4.1

Remedy

https://fortiguard.com/advisory/FG-IR-21-188

Never miss a vulnerability like this again

Reference Links

https://fortiguard.com/advisory/FG-IR-21-188

Frequently Asked Questions

What is CVE-2021-43071?
CVE-2021-43071 is a heap-based buffer overflow vulnerability in Fortinet FortiWeb.
What versions of Fortinet FortiWeb are affected by CVE-2021-43071?
Fortinet FortiWeb versions 6.4.1, 6.4.0, 6.3.15 and below, and 6.2.6 and below are affected.
What is the severity of CVE-2021-43071?
CVE-2021-43071 has a severity score of 8.8, which is classified as high.
How can an attacker exploit CVE-2021-43071?
An attacker can exploit CVE-2021-43071 by sending crafted HTTP requests to the LogReport API controller.
Is there a fix available for CVE-2021-43071?
Yes, Fortinet has released patches and updates to fix CVE-2021-43071. Please refer to the Fortinet advisory for more information.

collector/nvd-index
agent/type
agent/severity
agent/references
agent/weakness
agent/remedy
agent/description
agent/first-publish-date
collector/mitre-cve
source/MITRE
collector/nvd-api
source/NVD
agent/software-canonical-lookup
agent/last-modified-date
agent/author
agent/tags
agent/softwarecombine
agent/event
vendor/fortinet
canonical/fortinet fortiweb
version/fortinet fortiweb/6.2.0
version/fortinet fortiweb/6.2.6
version/fortinet fortiweb/6.3.0
version/fortinet fortiweb/6.3.16
version/fortinet fortiweb/6.4.0
version/fortinet fortiweb/6.4.1

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