Stack-based buffer overflow in FortiOS - CVE-2021-44170
Published: July 5, 2022
Vulnerability identifier: #VU64929
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-44170
CWE-ID: CWE-121
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within diagnostic CLI commands. A local user can trigger a stack-based buffer overflow and execute arbitrary code with elevated privileges.
Affected software
FortiOS
FortiProxy
FortiProxy
How to mitigate CVE-2021-44170
Install updates from vendor's website.
FortiOS - addressed in versions 6.2.11, 6.4.9, 7.0.4
FortiProxy - update to 2.0.8
FortiProxy - update to 2.0.8