CVE-2021-4105 : What You Need to Know

A critical vulnerability with CVE ID CVE-2021-4105 has been identified in the BG-TEK COSLAT Firewall. This vulnerability could allow remote code inclusion, posing a severe risk to affected systems. Below is a detailed overview of the impact, technical details, and mitigation strategies for CVE-2021-4105.

Understanding CVE-2021-4105

This section provides an insight into the vulnerability registered as CVE-2021-4105 that affects the BG-TEK COSLAT Firewall.

What is CVE-2021-4105?

The CVE-2021-4105 vulnerability involves an Improper Handling of Parameters in the BG-TEK COSLAT Firewall, enabling Remote Code Inclusion. Systems running versions from 5.24.0.R.20180630 to 5.24.0.R.20210727 are affected by this issue.

The Impact of CVE-2021-4105

The impact of CVE-2021-4105 is classified as critical. The vulnerability allows an attacker to execute remote code on affected systems, leading to severe consequences such as data compromise, integrity breaches, and service unavailability.

Technical Details of CVE-2021-4105

In this section, we delve into the technical aspects of the CVE-2021-4105 vulnerability, including its description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability arises from improper handling of parameters in the BG-TEK COSLAT Firewall, permitting remote code inclusion. Attackers can exploit this flaw to execute arbitrary code on vulnerable systems.

Affected Systems and Versions

BG-TEK COSLAT Firewall versions ranging from 5.24.0.R.20180630 to 5.24.0.R.20210727 are impacted by CVE-2021-4105, exposing them to the risk of remote code execution.

Exploitation Mechanism

The vulnerability can be exploited remotely without requiring any privileges, making it a high-risk threat. Attackers can exploit this flaw over the network to compromise confidentiality, integrity, and availability of the affected systems.

Mitigation and Prevention

To safeguard systems from CVE-2021-4105, immediate steps should be taken to address the vulnerability and prevent exploitation. Here are some recommended security practices:

Immediate Steps to Take

Update the BG-TEK COSLAT Firewall version to 5.24.0.R.20210727 or later to mitigate the vulnerability.

Long-Term Security Practices

Regularly monitor for security updates and patches provided by the vendor to protect against emerging threats.

Patching and Updates

Ensure timely application of security patches and updates to eliminate known vulnerabilities and enhance system security.