Stack-based buffer overflow in FortiWAN - CVE-2021-26112
Published: April 5, 2022
Vulnerability identifier: #VU61903
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-26112
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Fortinet, Inc
Affected software:
FortiWAN
FortiWAN
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within network daemons and in the command line interpreter of FortiWAN. A remote unauthenticated attacker can send a specially crafted request toi the system, trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2021-26112
Install updates from vendor's website.