#VU55320 Deserialization of Untrusted Data in CODESYS Development System - CVE-2021-21864 

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Main Vulnerability Database Vulnerabilities #VU55320

#VU55320 Deserialization of Untrusted Data in CODESYS Development System - CVE-2021-21864

Published: July 27, 2021


Vulnerability identifier: #VU55320
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:L/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-2021-21864
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
CODESYS Development System
Software vendor:
CODESYS

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data in the ComponentModel ComponentManager.StartupCultureSettings functionality. A remote attacker can pass specially crafted data to the application 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.

External links