CVE-2018-10746 Explained : Impact and Mitigation

A vulnerability has been identified on D-Link DSL-3782 EU 1.01 devices that could lead to memory corruption and potential execution of unauthorized code.

Understanding CVE-2018-10746

This CVE involves a specific vulnerability on D-Link DSL-3782 EU 1.01 devices that can be exploited by an authenticated user to manipulate program flow and execute unauthorized code.

What is CVE-2018-10746?

The vulnerability allows a user with proper authentication to submit a long buffer as a 'get' parameter to the '/userfs/bin/tcapi' binary within the Diagnostics component.
This action may result in memory corruption and enable an attacker to redirect the program flow, potentially leading to the execution of unauthorized code.

The Impact of CVE-2018-10746

Memory corruption on affected devices
Unauthorized code execution by malicious actors

Technical Details of CVE-2018-10746

This section provides more technical insights into the vulnerability.

Vulnerability Description

An authenticated user can pass a long buffer as a 'get' parameter to the '/userfs/bin/tcapi' binary, causing memory corruption.
The vulnerability allows the redirection of program flow and potential execution of arbitrary code.

Affected Systems and Versions

Device: D-Link DSL-3782 EU 1.01
Versions: All versions are affected

Exploitation Mechanism

Attacker submits a long buffer as a 'get' parameter to the '/userfs/bin/tcapi' binary
Manipulation of program flow to execute unauthorized code

Mitigation and Prevention

Protecting systems from this vulnerability is crucial to prevent exploitation.

Immediate Steps to Take

Apply vendor-supplied patches or updates promptly
Monitor network traffic for any suspicious activity
Restrict access to vulnerable components

Long-Term Security Practices

Regularly update and patch all software and firmware
Conduct security assessments and penetration testing
Educate users on safe computing practices

Patching and Updates

Check for security advisories from D-Link
Apply recommended patches and updates to mitigate the vulnerability