CVE-2017-7851 Explained : Impact and Mitigation

Devices of D-Link DCS-936L with firmware versions prior to 1.05.07 have a CSRF protection vulnerability that requires the device's IP address to be part of the HTTP Referer header.

Understanding CVE-2017-7851

This CVE entry highlights a security issue in D-Link DCS-936L devices that could be exploited due to inadequate CSRF protection.

What is CVE-2017-7851?

The vulnerability in D-Link DCS-936L devices with firmware versions before 1.05.07 allows attackers to bypass CSRF protection by including the device's IP address in the HTTP Referer header.

The Impact of CVE-2017-7851

This vulnerability could be exploited by malicious actors to perform unauthorized actions on affected devices, potentially compromising the security and privacy of users.

Technical Details of CVE-2017-7851

This section delves into the specifics of the vulnerability.

Vulnerability Description

Devices of D-Link DCS-936L with firmware versions prior to 1.05.07 lack adequate CSRF protection, requiring the device's IP address to be included in the HTTP Referer header.

Affected Systems and Versions

Product: D-Link DCS-936L
Vendor: D-Link
Versions Affected: Firmware versions prior to 1.05.07

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the HTTP Referer header to include the IP address of the targeted D-Link DCS-936L device.

Mitigation and Prevention

Protecting systems from CVE-2017-7851 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update D-Link DCS-936L devices to firmware version 1.05.07 or later to mitigate the CSRF vulnerability.
Monitor network traffic for any suspicious activity that might indicate exploitation attempts.

Long-Term Security Practices

Implement strong network security measures to prevent unauthorized access to devices.
Regularly update firmware and security patches to address known vulnerabilities.
Educate users on safe browsing practices and the importance of keeping devices up to date.

Patching and Updates

Ensure that all D-Link DCS-936L devices are updated to firmware version 1.05.07 or higher to patch the CSRF vulnerability and enhance overall device security.