CVE-2021-36763 : Security Advisory and Response

In CODESYS V3 web server before 3.5.17.10, files or directories are accessible to External Parties.

Understanding CVE-2021-36763

This CVE impacts the security of CODESYS V3 web server versions prior to 3.5.17.10, allowing unauthorized access to files and directories by external parties.

What is CVE-2021-36763?

CVE-2021-36763 refers to a vulnerability in the CODESYS V3 web server that enables external parties to access files and directories.

The Impact of CVE-2021-36763

The vulnerability poses a risk of unauthorized data access, potentially leading to data leakage, manipulation, or further exploitation by malicious actors.

Technical Details of CVE-2021-36763

The technical details of CVE-2021-36763 include the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

In CODESYS V3 web server before 3.5.17.10, external parties can access files or directories, posing a security risk.

Affected Systems and Versions

All versions of CODESYS V3 web server before 3.5.17.10 are affected by this vulnerability.

Exploitation Mechanism

External parties can exploit this vulnerability to gain unauthorized access to sensitive files and directories.

Mitigation and Prevention

Addressing CVE-2021-36763 involves taking immediate steps to secure the affected systems and implementing long-term security practices.

Immediate Steps to Take

Immediately update the CODESYS V3 web server to version 3.5.17.10 or newer to mitigate the vulnerability and restrict access to files and directories.

Long-Term Security Practices

Ensure regular security audits, educate users on safe browsing practices, and monitor system logs for any suspicious activity to enhance overall cybersecurity.

Patching and Updates

Regularly apply security patches and updates provided by CODESYS to prevent future vulnerabilities and enhance the security of the web server.