CVE-2017-16673 : Security Advisory and Response

Datto Backup Agent 1.0.6.0 and older versions lack authentication for incoming connections, potentially allowing attackers to impersonate a Datto Backup Appliance.

Understanding CVE-2017-16673

This CVE highlights a vulnerability in Datto Backup Agent versions 1.0.6.0 and earlier, enabling unauthorized access to the agent.

What is CVE-2017-16673?

The vulnerability in Datto Backup Agent versions 1.0.6.0 and older allows attackers to assume the identity of a Datto Backup Appliance and establish a connection with the agent.

The Impact of CVE-2017-16673

The lack of authentication for incoming connections poses a significant security risk, as attackers can send requests to the agent by exploiting TCP ports 25566 or 25568.

Technical Details of CVE-2017-16673

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The vulnerability allows attackers to send requests to the Datto Backup Agent by impersonating a Datto Backup Appliance, potentially leading to unauthorized access.

Affected Systems and Versions

Datto Backup Agent 1.0.6.0 and older versions

Exploitation Mechanism

Attackers can exploit TCP ports 25566 or 25568 to establish a connection with the agent and provide specific information to impersonate a legitimate Datto device.

Mitigation and Prevention

Protecting systems from CVE-2017-16673 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Datto Backup Agent to the latest version with proper authentication mechanisms.
Restrict network access to TCP ports 25566 and 25568.

Long-Term Security Practices

Implement network segmentation to limit access to critical systems.
Regularly monitor and audit network traffic for suspicious activities.

Patching and Updates

Stay informed about security updates and patches released by Datto to address this vulnerability.