Buffer Overflow in D-Link DI-8003 /web_post.asp Endpoint

Detection Guidance

This vulnerability can be detected by monitoring HTTP GET requests to the /web_post.asp endpoint on D-Link DI-8003 devices, specifically looking for crafted requests with suspicious parameters such as name, en, user_id, log, and time.

Since no specific detection commands or tools are provided, a general approach would be to use network monitoring or web server logs to identify unusual or malformed GET requests targeting /web_post.asp with these parameters.

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Executive Summary

This vulnerability is a buffer overflow in the D-Link DI-8003 device, version 16.07.26A1. It occurs because the device improperly handles multiple parameters in the /web_post.asp endpoint. An attacker can exploit this by sending a specially crafted HTTP GET request with manipulated parameters such as name, en, user_id, log, and time.

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Impact Analysis

Exploitation of this buffer overflow vulnerability could allow an attacker to cause unexpected behavior in the device, such as crashes or potentially executing arbitrary code. This could lead to denial of service or unauthorized control over the affected device.

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Mitigation Strategies

Immediate mitigation steps include restricting access to the /web_post.asp endpoint, applying input validation or filtering on parameters such as name, en, user_id, log, and time, and monitoring for suspicious HTTP GET requests.

Since no patches or specific mitigation instructions are provided, consider isolating affected devices from untrusted networks and limiting exposure until a fix is available.

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