#VU58507 Arbitrary file upload in WebHMI - CVE-2021-43936
Published: December 3, 2021 / Updated: May 13, 2022
Vulnerability identifier: #VU58507
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2021-43936
CWE-ID: CWE-434
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
WebHMI
WebHMI
Software vendor:
Distributed Data Systems
Distributed Data Systems
Description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to insufficient validation of file during file upload. A remote attacker can upload a malicious file and execute it on the server.
Remediation
Install updates from vendor's website.