Executive Summary

This vulnerability is a NULL pointer dereference in the SetWLanRadioSettings function of the D-Link DIR-823G A1 v1.0.2B05 router. It allows attackers to cause a Denial of Service (DoS) by sending a specially crafted HTTP request to the device, which triggers the fault.

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Impact Analysis

The vulnerability can cause the affected router to crash or become unresponsive, resulting in a Denial of Service (DoS). This disrupts network connectivity and availability for users relying on the device.

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Detection Guidance

Detection can be performed by monitoring for crafted HTTP requests targeting the SetWLanRadioSettings function on D-Link DIR-823G A1 v1.0.2B05 devices. Specific commands or scripts to detect such requests are not provided in the available resources. [1]

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Mitigation Strategies

Immediate mitigation steps are not detailed in the provided resources. Generally, it is recommended to restrict access to the affected device's management interface, apply any available firmware updates from the vendor, and monitor for suspicious HTTP requests targeting the vulnerable function. [1]

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