FreeFloat FTP Server Buffer Overflow Vulnerability in MDELETE Command Handler

A critical buffer overflow vulnerability has been identified in FreeFloat FTP Server version 1.0. The issue arises from an unknown processing flaw in the MDELETE Command Handler, allowing remote exploitation. The vulnerability has been publicly disclosed and could be actively exploited.

Impact

Exploitation of this vulnerability leads to a buffer overflow, which can commonly result in arbitrary code execution or causing a denial-of-service condition.

Reproduction

The vulnerability can be reproduced by sending a crafted MDELETE command that includes a payload designed to overflow the buffer. This can be done using a FTP client or a custom script that connects to the FTP server on port 21. The payload should be carefully crafted to include the necessary offset to reach the return address, followed by the address of a writable location or a jump instruction, and then the shellcode. Once the payload is prepared, it can be sent as part of the MDELETE command to trigger the buffer overflow.