CVE-2021-35978 : Security Advisory and Response

This CVE-2021-35978 affects Digi TransPort DR64, SR44 VC74, and WR. The vulnerability lies in the ZING protocol, enabling remote command execution with SUPER privileges, allowing attackers to carry out malicious activities on the controller.

Understanding CVE-2021-35978

This section delves into the impact, technical details, and mitigation strategies related to CVE-2021-35978.

What is CVE-2021-35978?

CVE-2021-35978 is a security flaw found in Digi TransPort DR64, SR44 VC74, and WR. It permits unauthorized remote code execution, providing attackers with extensive control over the device.

The Impact of CVE-2021-35978

The exploitation of this vulnerability can result in severe consequences, such as unauthorized firmware modifications, user manipulation, and firewall deactivation, empowering threat actors to compromise the integrity and security of the affected devices.

Technical Details of CVE-2021-35978

This section provides insights into the vulnerability description, affected systems, versions, and exploitation mechanism.

Vulnerability Description

The flaw in the ZING protocol grants attackers the ability to execute arbitrary commands with elevated privileges, leading to potential system compromise and unauthorized operations.

Affected Systems and Versions

Digi TransPort DR64, SR44 VC74, and WR devices are impacted by this vulnerability, with no specific affected versions identified.

Exploitation Mechanism

Attackers knowledgeable about the ZING protocol can leverage it to execute arbitrary code on the controller, enabling malicious activities like firmware tampering and user management.

Mitigation and Prevention

Discover essential steps to address and prevent the exploitation of CVE-2021-35978.

Immediate Steps to Take

Immediate actions should include disabling the affected protocol, implementing network segmentation, and monitoring for any unauthorized activities.

Long-Term Security Practices

Incorporating robust access controls, regular security assessments, and vendor firmware updates are crucial for enhancing long-term cybersecurity posture.

Patching and Updates

Applying patches or firmware updates released by the vendor is essential to remediate the vulnerability and fortify the security of the affected devices.