OS Command Injection in FortiWeb - CVE-2021-41018
Published: February 1, 2022
Vulnerability identifier: #VU60214
CSH Severity: High
CVSS v4: 8.7 [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]
CVE-ID: CVE-2021-41018
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation. A remote authenticated user can send a specially crafted HTTP GET requests to WAD configuration handlers and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
FortiWeb
How to mitigate CVE-2021-41018
Install updates from vendor's website.
FortiWeb - addressed in versions 6.2.7, 6.3.16, 6.4.2