CVE-2018-10748 : Security Advisory and Response

A vulnerability has been found in versions 1.01 of the D-Link DSL-3782 EU devices that allows an authenticated user to exploit the Diagnostics component, leading to memory corruption and unauthorized code execution.

Understanding CVE-2018-10748

This CVE identifies a security flaw in D-Link DSL-3782 EU devices version 1.01.

What is CVE-2018-10748?

This vulnerability enables a user with proper authentication to manipulate the 'show <node_name>' function in the '/userfs/bin/tcapi' binary of the Diagnostics component by passing a lengthy buffer as the 'show' parameter.

The Impact of CVE-2018-10748

Exploiting this vulnerability can result in memory corruption and allow the attacker to redirect program flow and execute unauthorized code.

Technical Details of CVE-2018-10748

This section provides more technical insights into the vulnerability.

Vulnerability Description

An authenticated user can exploit the 'show <node_name>' function in the '/userfs/bin/tcapi' binary of the Diagnostics component by passing a lengthy buffer as the 'show' parameter, leading to memory corruption and unauthorized code execution.

Affected Systems and Versions

Product: D-Link DSL-3782 EU devices
Version: 1.01

Exploitation Mechanism

The vulnerability is exploited by passing a lengthy buffer as the 'show' parameter in the '/userfs/bin/tcapi' binary of the Diagnostics component.

Mitigation and Prevention

Protecting systems from CVE-2018-10748 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Monitor network traffic for any suspicious activities.
Restrict access to vulnerable components.

Long-Term Security Practices

Regularly update and patch all software and firmware.
Conduct security training for users to recognize and report potential security threats.

Patching and Updates

Stay informed about security updates released by D-Link for the affected devices.