Download of code without integrity check in FortiOS - CVE-2021-44168
Published: February 21, 2022 / Updated: October 22, 2023
Vulnerability identifier: #VU60735
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-44168
CWE-ID: CWE-494
Exploitation vector: Adjecent network
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerability details
The vulnerability allows a remote attacker to compromise the affected system
The vulnerability exists due to software does not perform software integrity check when downloading updates in the "execute restore src-vis" command. A remote attacker with ability to perform man-in-the-middle (MitM) attack can supply a malicious software image and gain full control over the affected system after a successful software update.
Affected software
FortiOS
How to mitigate CVE-2021-44168
Install updates from vendor's website.
FortiOS - addressed in versions 6.0.14, 6.2.10, 6.4.8, 7.0.3