What is CVE-2021-43076?

CVE-2021-43076 is an improper privilege management vulnerability in FortiADC versions 6.2.1 and below, 6.1.5 and below, 6.0.4 and below, 5.4.5 and below, and 5.3.7 and below.

How can an attacker exploit CVE-2021-43076?

A remote authenticated attacker with a restricted user profile can exploit CVE-2021-43076 to modify system files using the shell access.

What is the severity of CVE-2021-43076?

CVE-2021-43076 has a severity rating of 6.5 (medium).

How can I mitigate CVE-2021-43076?

It is recommended to update FortiADC to a version that is not affected by CVE-2021-43076 or apply the patches provided by Fortinet.

Vulnerability/
CVE-2021-43076

medium

6.5

CWE

269

6/9/2022

4/8/2024

CVE-2021-43076

First published: Tue Sep 06 2022(Updated: )

An improper privilege management vulnerability [CWE-269] in FortiADC versions 6.2.1 and below, 6.1.5 and below, 6.0.4 and below, 5.4.5 and below and 5.3.7 and below may allow a remote authenticated attacker with restricted user profile to modify the system files using the shell access.

Credit: psirt@fortinet.com

Affected Software	Affected Version	How to fix
Fortinet FortiADC	>=5.3.0<=5.3.7
Fortinet FortiADC	>=5.4.0<=5.4.5
Fortinet FortiADC	>=6.0.0<=6.0.4
Fortinet FortiADC	>=6.1.0<=6.1.5
Fortinet FortiADC	=6.2.0
Fortinet FortiADC	=6.2.1

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Reference Links

https://fortiguard.com/psirt/FG-IR-21-215

Frequently Asked Questions

What is CVE-2021-43076?
CVE-2021-43076 is an improper privilege management vulnerability in FortiADC versions 6.2.1 and below, 6.1.5 and below, 6.0.4 and below, 5.4.5 and below, and 5.3.7 and below.
How can an attacker exploit CVE-2021-43076?
A remote authenticated attacker with a restricted user profile can exploit CVE-2021-43076 to modify system files using the shell access.
What is the severity of CVE-2021-43076?
CVE-2021-43076 has a severity rating of 6.5 (medium).
Which software versions are affected by CVE-2021-43076?
FortiADC versions 6.2.1 and below, 6.1.5 and below, 6.0.4 and below, 5.4.5 and below, and 5.3.7 and below are affected by CVE-2021-43076.
How can I mitigate CVE-2021-43076?
It is recommended to update FortiADC to a version that is not affected by CVE-2021-43076 or apply the patches provided by Fortinet.

collector/nvd-index
agent/severity
agent/references
agent/author
agent/description
agent/event
agent/weakness
agent/type
agent/last-modified-date
agent/softwarecombine
agent/first-publish-date
agent/tags
collector/mitre-cve
source/MITRE
vendor/fortinet
canonical/fortinet fortiadc
version/fortinet fortiadc/5.3.0
version/fortinet fortiadc/5.3.7
version/fortinet fortiadc/5.4.0
version/fortinet fortiadc/5.4.5
version/fortinet fortiadc/6.0.0
version/fortinet fortiadc/6.0.4
version/fortinet fortiadc/6.1.0
version/fortinet fortiadc/6.1.5
version/fortinet fortiadc/6.2.0
version/fortinet fortiadc/6.2.1

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