D-Link DIR-513 Stack Buffer Overflow Vulnerability

A stack buffer overflow vulnerability has been identified in the D-Link DIR-513 router, specifically in version 1.10. The issue arises in the 'goform/formWlanGuestSetup' component, where the 'webPage' parameter can be manipulated to cause the overflow.

Impact

Exploitation of this vulnerability leads to a stack buffer overflow, which can commonly result in arbitrary code execution or causing the device to crash.

Reproduction

The vulnerability can be reproduced by sending a POST request to '/goform/formWlanGuestSetup' with a crafted 'webpage' parameter. The payload should be designed to overflow the buffer, taking advantage of the application's use of 'sprintf' for string formatting.