CVE-2019-25058 : Security Advisory and Response

A vulnerability was found in USBGuard prior to version 1.1.0 that could allow a user with limited privileges to manipulate USBGuard to permit the connection of any USB devices in the future.

Understanding CVE-2019-25058

This CVE identifies a security issue in USBGuard versions before 1.1.0 that could be exploited by an unprivileged user to bypass USB device restrictions.

What is CVE-2019-25058?

CVE-2019-25058 is a vulnerability in USBGuard that allows unauthorized users to manipulate USBGuard to enable the connection of any USB devices, bypassing security restrictions.

The Impact of CVE-2019-25058

The vulnerability could lead to unauthorized USB devices being connected to a system, potentially compromising security and introducing malware or other threats.

Technical Details of CVE-2019-25058

USBGuard vulnerability details and affected systems.

Vulnerability Description

An issue in USBGuard before version 1.1.0 allows unprivileged users to bypass USB device restrictions by manipulating USBGuard settings.

Affected Systems and Versions

Product: USBGuard
Vendor: n/a
Versions affected: < 1.1.0

Exploitation Mechanism

The usbguard-dbus daemon, when active, can be exploited by users with limited privileges to permit the connection of any USB devices in the future.

Mitigation and Prevention

Steps to mitigate the CVE-2019-25058 vulnerability.

Immediate Steps to Take

Update USBGuard to version 1.1.0 or newer to patch the vulnerability.
Monitor USB device connections for any unauthorized devices.

Long-Term Security Practices

Implement least privilege access to limit user capabilities.
Regularly review and update security configurations to prevent similar vulnerabilities.

Patching and Updates

Apply security updates promptly to ensure protection against known vulnerabilities in USBGuard.