CVE-2019-5165 : What You Need to Know

The Moxa AWK-3131A firmware version 1.13 contains a vulnerability that allows attackers to bypass authentication by manipulating hostnames.

Understanding CVE-2019-5165

This CVE involves an authentication bypass vulnerability in the Moxa AWK-3131A firmware version 1.13, enabling unauthorized access to the device.

What is CVE-2019-5165?

The vulnerability in the firmware allows attackers to bypass web authentication by configuring the hostname in a specific way, tricking the device into treating remote traffic as local.

The Impact of CVE-2019-5165

CVSS Base Score: 8 (High)
Severity: High
Attack Vector: Network
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High
Privileges Required: High
Scope: Changed
Vector String: CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Technical Details of CVE-2019-5165

The following technical details provide insight into the vulnerability.

Vulnerability Description

The vulnerability in the Moxa AWK-3131A firmware version 1.13 allows attackers to bypass authentication by manipulating hostnames, leading to unauthorized access.

Affected Systems and Versions

Product: Moxa
Version: Moxa AWK-3131A Firmware version 1.13

Exploitation Mechanism

Attackers can exploit this vulnerability by configuring the hostname in a specific manner, causing the device to misinterpret remote traffic as local, thereby bypassing web authentication.

Mitigation and Prevention

To address CVE-2019-5165, consider the following mitigation strategies.

Immediate Steps to Take

Update the firmware to the latest version provided by the vendor.
Implement network segmentation to restrict access to vulnerable devices.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Regularly review and update security configurations.
Conduct security training for personnel to recognize and respond to potential threats.

Patching and Updates

Stay informed about security advisories and patches released by the vendor.