CVE-2019-5425 : What You Need to Know

In previous versions of Ubiquiti Networks EdgeSwitch X v1.1.0, a vulnerability exists that allows an authenticated user to execute shell commands through the SSH interface, bypassing the CLI interface and escalating privileges to root level.

Understanding CVE-2019-5425

This CVE entry details a privilege escalation vulnerability in Ubiquiti Networks EdgeSwitch X prior to v1.1.1.

What is CVE-2019-5425?

The CVE-2019-5425 vulnerability allows a user with proper authentication to execute shell commands through the SSH interface, bypassing the CLI interface and gaining root-level privileges.

The Impact of CVE-2019-5425

This vulnerability could be exploited by an authenticated user to elevate their privileges to the root level, potentially leading to unauthorized access and control over the affected system.

Technical Details of CVE-2019-5425

This section provides more technical insights into the vulnerability.

Vulnerability Description

In Ubiquiti Networks EdgeSwitch X v1.1.0 and prior versions, an authenticated user can execute arbitrary shell commands over the SSH interface, bypassing the CLI interface, and escalate privileges to root.

Affected Systems and Versions

Product: EdgeMAX
Vendor: Ubiquiti Networks
Versions Affected: EdgeSwitch X prior to v1.1.1

Exploitation Mechanism

The vulnerability allows an authenticated user to execute shell commands through the SSH interface, bypassing the CLI interface, and gaining root-level privileges.

Mitigation and Prevention

Protecting systems from CVE-2019-5425 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the affected EdgeSwitch X devices to version v1.1.1 or later to mitigate the vulnerability.
Monitor network traffic for any suspicious activities that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Implement strong authentication mechanisms to prevent unauthorized access to network devices.
Regularly update and patch network devices to address known vulnerabilities and enhance security.

Patching and Updates

Ubiquiti Networks released EdgeSwitch X software release v1.1.1 to address this vulnerability. Ensure all affected devices are updated to the patched version.