CVE-2017-8411 Explained : Impact and Mitigation

A flaw has been discovered in D-Link DCS-1130 devices that allows for command injection through specific POST parameters.

Understanding CVE-2017-8411

What is CVE-2017-8411?

The vulnerability in D-Link DCS-1130 devices enables attackers to exploit POST parameters meant for testing email credentials and hostname, leading to command injection through a system API within the device.

The Impact of CVE-2017-8411

The vulnerability allows unauthorized individuals to execute arbitrary commands on the affected devices, potentially compromising their security and integrity.

Technical Details of CVE-2017-8411

Vulnerability Description

The flaw resides in the "libmailutils.so" library, specifically in the function "sub_1FC4," which processes values from the vulnerable POST parameter.

Affected Systems and Versions

Product: D-Link DCS-1130
Version: Not applicable

Exploitation Mechanism

Attackers exploit the vulnerable POST parameter "receiver1" to trigger the susceptible system API call, leading to command injection.

Mitigation and Prevention

Immediate Steps to Take

Disable remote access to the device if not required.
Implement network segmentation to restrict access to vulnerable devices.
Regularly monitor and analyze network traffic for any suspicious activities.

Long-Term Security Practices

Keep devices up to date with the latest firmware and security patches.
Conduct regular security audits and penetration testing to identify and address vulnerabilities.

Patching and Updates

Apply patches and updates provided by the device manufacturer to mitigate the vulnerability.