CVE-2017-7404 : Exploit Details and Defense Strategies
Learn about CVE-2017-7404, a vulnerability in D-Link DIR-615 routers allowing unauthorized firmware uploads, potentially leading to a Denial of Service (DoS) attack. Find mitigation steps and prevention measures.
This CVE involves a vulnerability in the D-Link DIR-615 router that allows an attacker to upload malicious firmware, potentially leading to a Denial of Service (DoS) attack.
Understanding CVE-2017-7404
This CVE describes a security flaw in the D-Link DIR-615 router that enables unauthorized users to upload malicious firmware, causing the router to crash or reboot, resulting in a DoS condition.
What is CVE-2017-7404?
The vulnerability in the D-Link DIR-615 router allows an attacker to exploit Cross-Site Request Forgery (CSRF) to upload malicious firmware without requiring login credentials, leading to a potential DoS attack.
The Impact of CVE-2017-7404
The exploitation of this vulnerability can result in unauthorized firmware uploads, causing the router to crash or reboot, potentially disrupting network services and leading to a Denial of Service condition.
Technical Details of CVE-2017-7404
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The flaw in the D-Link DIR-615 router allows an attacker to upload malicious firmware by sending a POST request to Form2File.htm, triggering a router crash or reboot, potentially causing a DoS situation.
Affected Systems and Versions
- Product: D-Link DIR-615
- Versions: Prior to v20.12PTb04
Exploitation Mechanism
- Unauthorized user visits a malicious website from a different browser tab
- Malicious site sends requests to the victim's router without login credentials (CSRF)
- Attacker uploads malicious firmware, causing the router to crash or reboot
Mitigation and Prevention
Protecting against CVE-2017-7404 involves immediate steps and long-term security practices.
Immediate Steps to Take
- Update the router firmware to version v20.12PTb04 or later
- Avoid clicking on suspicious links or visiting unknown websites
- Implement strong router login credentials
Long-Term Security Practices
- Regularly monitor router logs for unusual activities
- Conduct security audits to identify vulnerabilities
- Educate users on safe browsing practices and cybersecurity awareness
Patching and Updates
- Apply firmware patches and updates provided by D-Link
- Stay informed about security advisories and best practices for securing network devices