#VU54331 Stack-based buffer overflow in CODESYS V2 Runtime Toolkit and CODESYS PLCWinNT - CVE-2021-30188
Published: June 23, 2021
Vulnerability identifier: #VU54331
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:U/U:Amber
CVE-ID: CVE-2021-30188
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
CODESYS V2 Runtime Toolkit
CODESYS PLCWinNT
CODESYS V2 Runtime Toolkit
CODESYS PLCWinNT
Software vendor:
CODESYS
CODESYS
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error. A remote unauthenticated attacker can send a specially crafted request, 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.
Remediation
Install updates from vendor's website.