CVE-2021-31326 Explained : Impact and Mitigation

D-Link DIR-816 A2 1.10 B05 allows unauthenticated attackers to arbitrarily reset the device via a crafted tokenid parameter to /goform/form2Reboot.cgi.

Understanding CVE-2021-31326

This CVE record highlights a vulnerability in D-Link DIR-816 A2 1.10 B05 that enables unauthenticated attackers to perform unauthorized device resets.

What is CVE-2021-31326?

The CVE-2021-31326 vulnerability in D-Link DIR-816 A2 1.10 B05 permits attackers to reset the device without authentication using a specially crafted tokenid parameter.

The Impact of CVE-2021-31326

The impact of this vulnerability is severe as it allows attackers to disrupt the normal operation of D-Link DIR-816 A2 1.10 B05 devices by triggering unauthorized resets.

Technical Details of CVE-2021-31326

This section delves into the technical aspects of CVE-2021-31326.

Vulnerability Description

The vulnerability in D-Link DIR-816 A2 1.10 B05 allows unauthenticated attackers to reset the device through manipulation of the tokenid parameter in /goform/form2Reboot.cgi.

Affected Systems and Versions

The affected version is D-Link DIR-816 A2 1.10 B05.

Exploitation Mechanism

Exploitation of CVE-2021-31326 involves sending a specially crafted tokenid parameter to /goform/form2Reboot.cgi without requiring authentication.

Mitigation and Prevention

Protecting systems from CVE-2021-31326 requires immediate action and long-term security practices.

Immediate Steps to Take

Immediate steps include monitoring network activity, restricting access to affected devices, and applying vendor patches.

Long-Term Security Practices

Implementing strong network security measures, regular security audits, and keeping systems updated are crucial for long-term protection.

Patching and Updates

Users should regularly check for security updates and patches provided by D-Link to mitigate the CVE-2021-31326 vulnerability.