#VU57145 Buffer overflow in PLC WinProladder - CVE-2021-38442
Published: October 8, 2021 / Updated: October 14, 2021
Vulnerability identifier: #VU57145
Vulnerability risk: High
CVSSv4.0: 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-2021-38442
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
PLC WinProladder
PLC WinProladder
Software vendor:
Fatek
Fatek
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 attacker can create a specially crafted PDW or PLC file, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
External links
- https://ics-cert.us-cert.gov/advisories/icsa-21-280-06
- https://www.zerodayinitiative.com/advisories/ZDI-21-1178/
- https://www.zerodayinitiative.com/advisories/ZDI-21-1177/
- https://www.zerodayinitiative.com/advisories/ZDI-21-1176/
- https://www.zerodayinitiative.com/advisories/ZDI-21-1175/
- https://www.zerodayinitiative.com/advisories/ZDI-21-1174/
- https://www.zerodayinitiative.com/advisories/ZDI-21-1173/
- https://www.zerodayinitiative.com/advisories/ZDI-21-1172/
- https://www.zerodayinitiative.com/advisories/ZDI-21-1167/
- https://www.zerodayinitiative.com/advisories/ZDI-21-1166/