Stack-based buffer overflow in FortiWeb - CVE-2022-33871
Published: February 17, 2023
Vulnerability identifier: #VU72361
CSH Severity: Low
CVSS v4: 7.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-33871
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing specifically crafted CLI `execute backup-local rename` and `execute backup-local show` operations. A remote user can trigger a stack-based buffer overflow and execute arbitrary code on the target system.
Affected software
FortiWeb
How to mitigate CVE-2022-33871
Install update from vendor's website.
FortiWeb - addressed in versions 6.3.20, 7.0.2