CVE-2021-38420 : What You Need to Know

Delta Electronics DIALink versions 1.2.4.0 and prior are affected by default permissions vulnerabilities that grant extensive access to low-privileged accounts. This could potentially enable attackers to manipulate the installation directory and upload malicious files.

Understanding CVE-2021-38420

This section provides insights into the impact, technical details, and mitigation strategies related to CVE-2021-38420.

What is CVE-2021-38420?

CVE-2021-38420 pertains to the default permissions in Delta Electronics DIALink versions 1.2.4.0 and earlier that allow unauthorized access to critical functionalities, posing a significant security risk.

The Impact of CVE-2021-38420

The vulnerability has a CVSS base score of 7.8, indicating a high severity level and potential for unauthorized users to compromise confidentiality, integrity, and availability of the affected systems.

Technical Details of CVE-2021-38420

Explore the specific technical aspects of the vulnerability, including the description, affected systems, and exploitation methodology.

Vulnerability Description

The default permissions issue in Delta Electronics DIALink exposes low-privileged accounts to unauthorized system modifications and potential upload of malicious content, significantly increasing the risk of exploitation.

Affected Systems and Versions

All versions of Delta Electronics DIALink up to and including 1.2.4.0 are impacted by this vulnerability, leaving systems running these versions exposed to exploitation.

Exploitation Mechanism

With low complexity and no user interaction required, local attackers can exploit this vulnerability to compromise the affected systems' confidentiality, integrity, and availability.

Mitigation and Prevention

Discover the immediate and long-term measures that organizations can implement to mitigate the risks associated with CVE-2021-38420.

Immediate Steps to Take

To address the vulnerability, it is recommended to monitor vendor updates and apply patches promptly once available. Additionally, restrict access permissions to the DIALink installation directory.

Long-Term Security Practices

Incorporate robust access control mechanisms, conduct regular security assessments, and educate users on best security practices to enhance overall system resilience against potential threats.

Patching and Updates

Stay informed about Delta Electronics' security advisories and promptly update to the latest DIALink version that addresses the default permissions vulnerability.