CVE-2021-21868: High severity codesys development system vulnerability

Published Aug 18, 2021

Updated

An unsafe deserialization vulnerability exists in the ObjectManager.plugin Project.getMissingTypes() functionality of CODESYS GmbH CODESYS Development System 3.5.16 and 3.5.17. A specially crafted file can lead to arbitrary command execution. An attacker can provide a malicious file to trigger this vulnerability.

Affected Software

2 affected components

CODESYS CODESYS=3.5.16.0

CODESYS CODESYS=3.5.17.0

Remediation

Patch Available

https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16805&token=ee583c498941d9fda86490bca98ff21928eec08a&download=

Event History

Aug 18, 2021

CVE Published

via MITRE·02:35 PM

Data Sourced

via MITRE·02:35 PM

DescriptionSeverityWeakness

Frequently Asked Questions

What is the severity of CVE-2021-21868?

CVE-2021-21868 is considered a high severity vulnerability due to its potential for arbitrary command execution.

How do I fix CVE-2021-21868?

To fix CVE-2021-21868, upgrade CODESYS Development System to the latest version that includes patches addressing this vulnerability.

What software versions are affected by CVE-2021-21868?

CVE-2021-21868 affects CODESYS Development System versions 3.5.16.0 and 3.5.17.0.

What type of vulnerability is CVE-2021-21868?

CVE-2021-21868 is an unsafe deserialization vulnerability that allows for arbitrary command execution.

Can CVE-2021-21868 be exploited remotely?

Yes, CVE-2021-21868 can be exploited remotely by an attacker providing a specially crafted file.