TOTOLINK A3002RU Buffer Overflow Vulnerability in HTTP POST Request Handler

A critical buffer overflow vulnerability has been identified in the TOTOLINK A3002RU router, specifically in version 3.0.0-B20230809.1615. The issue arises within an unknown function of the file '/boafrm/formParentControl', related to the HTTP POST request handling. The vulnerability is triggered by manipulating the 'submit-url' argument, allowing for remote exploitation. This buffer overflow could potentially be exploited to execute a denial-of-service attack.

Impact

Exploitation of this vulnerability leads to a buffer overflow, which can commonly be used to execute arbitrary code or cause a denial-of-service condition by crashing the device.

Reproduction

The vulnerability can be reproduced by sending a malicious HTTP POST request to the '/boafrm/formParentControl' endpoint, including a crafted 'submit-url' argument that triggers the buffer overflow.