Stack-based buffer overflow in PLC WinProladder - CVE-2021-38430
Published: October 8, 2021 / Updated: October 14, 2021
Vulnerability identifier: #VU57143
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-38430
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Fatek
Affected software:
PLC WinProladder
PLC WinProladder
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 when parsing project files. A remote unauthenticated attacker can trick a victim to open a specially crafted PDW file, 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-2021-38430
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.