Use of Hard-coded Cryptographic Key in FortiOS - CVE-2021-26108
Published: December 7, 2021
Vulnerability identifier: #VU58628
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-26108
CWE-ID: CWE-321
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to decrypt traffic.
The vulnerability exists due to usage of a hard-coded SSL VPN cookie encryption key. A remote attacker can extract the encryption key and use it to decrypt traffic.
Affected software
FortiOS
How to mitigate CVE-2021-26108
Install updates from vendor's website.
FortiOS - addressed in versions 5.6.14, 6.0.13, 6.2.10, 6.4.6