CVE-2018-10747 : Vulnerability Insights and Analysis

A vulnerability was identified on D-Link DSL-3782 EU 1.01 devices that could allow an authenticated user to execute unauthorized code by exploiting a memory corruption flaw.

Understanding CVE-2018-10747

What is CVE-2018-10747?

This CVE refers to a security issue found in D-Link DSL-3782 EU 1.01 devices, where an authenticated user can manipulate the program's execution flow and potentially run unauthorized code.

The Impact of CVE-2018-10747

The vulnerability could lead to memory corruption and unauthorized code execution on affected devices.

Technical Details of CVE-2018-10747

Vulnerability Description

A user with authentication privileges can exploit a flaw in the '/userfs/bin/tcapi' binary by providing a lengthy buffer as the 'unset' parameter, specifically through the 'unset <node_name>' function in the Diagnostics component.

Affected Systems and Versions

Affected Product: D-Link DSL-3782 EU 1.01
Affected Version: Not applicable

Exploitation Mechanism

The flaw can be exploited by providing a lengthy buffer as the 'unset' parameter to the '/userfs/bin/tcapi' binary, allowing the user to cause memory corruption and potentially execute unauthorized code.

Mitigation and Prevention

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Restrict access to vulnerable devices to authorized users only.

Long-Term Security Practices

Regularly update and patch all software and firmware on network devices.
Implement strong authentication mechanisms and access controls.

Patching and Updates

Ensure that the latest firmware updates and security patches are installed on all D-Link DSL-3782 EU 1.01 devices.