CVE-2022-37133 : Security Advisory and Response

This article discusses the CVE-2022-37133 vulnerability found in D-link DIR-816 A2_v1.10CNB04.img, allowing unauthorized reboot of the router without authentication.

Understanding CVE-2022-37133

This section provides insights into the nature and impact of the vulnerability.

What is CVE-2022-37133?

The CVE-2022-37133 vulnerability in D-link DIR-816 A2_v1.10CNB04.img enables an attacker to reboot the router without authentication through /goform/doReboot.

The Impact of CVE-2022-37133

The vulnerability requires no authentication, and the router reboots once the function completes, posing a security risk to affected devices.

Technical Details of CVE-2022-37133

Here, we delve into the technical aspects of the vulnerability.

Vulnerability Description

The flaw allows unauthorized rebooting of the router without needing any authentication, which could lead to service disruption and unauthorized access.

Affected Systems and Versions

D-link DIR-816 A2_v1.10CNB04.img is affected by this vulnerability, specifically versions that make use of the /goform/doReboot functionality.

Exploitation Mechanism

An attacker can exploit this flaw by sending a crafted request to the /goform/doReboot endpoint, triggering an unauthorized reboot.

Mitigation and Prevention

In this section, we explore ways to mitigate and prevent exploitation of CVE-2022-37133.

Immediate Steps to Take

Users should update their D-link DIR-816 A2 device firmware to a non-vulnerable version, if available, and restrict access to the device to trusted entities only.

Long-Term Security Practices

Regularly monitor for firmware updates from the vendor and ensure that network configurations are secure to prevent unauthorized access to the router.

Patching and Updates

Apply patches provided by D-link promptly and stay informed about security advisories to protect against known vulnerabilities.