Stack-based buffer overflow in FortiProxy - CVE-2021-22130
Published: June 1, 2021
Vulnerability identifier: #VU53717
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-22130
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
FortiProxy
FortiProxy
Software vendor:
Fortinet, Inc
Fortinet, Inc
Description
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in FortiProxy physical appliance CLI. A remote authenticated user can run the `diagnose sys cpuset` with a large cpuset mask value, trigger stack-based buffer overflow and execute arbitrary code on the target system.
Remediation
Install updates from vendor's website.