CVE-2019-17509 : Exploit Details and Defense Strategies

D-Link DIR-846 devices with firmware version 100A35 are vulnerable to remote attacks that allow unauthorized execution of operating system commands with root privileges.

Understanding CVE-2019-17509

Remote attackers can exploit a specific endpoint on the affected devices to gain root access and execute unauthorized commands.

What is CVE-2019-17509?

The vulnerability in D-Link DIR-846 devices enables attackers to execute arbitrary OS commands as root by leveraging admin access and sending a specially crafted request.

The Impact of CVE-2019-17509

Attackers can execute unauthorized operating system commands with root privileges
Exploitation involves sending a malicious request to a specific endpoint

Technical Details of CVE-2019-17509

The technical aspects of the vulnerability include:

Vulnerability Description

Remote code execution vulnerability
Exploits admin access and a specific endpoint

Affected Systems and Versions

D-Link DIR-846 devices with firmware version 100A35

Exploitation Mechanism

Attackers send a specially crafted request to a specific endpoint
Utilizes shell metacharacters to execute unauthorized commands

Mitigation and Prevention

To address CVE-2019-17509, follow these steps:

Immediate Steps to Take

Update the firmware to the latest version
Restrict access to vulnerable endpoints
Monitor network traffic for suspicious activity

Long-Term Security Practices

Regularly update firmware and security patches
Implement network segmentation to limit attack surface
Conduct security audits and penetration testing

Patching and Updates

Apply patches provided by D-Link promptly
Stay informed about security advisories and updates