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FutureSoft TFTP Server 2000 Transfer-Mode Overflow

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FutureSoft TFTP Server 2000 Transfer-Mode Overflow

Disclosed
05/31/2005
Created
05/30/2018

Description

This module exploits a stack buffer overflow in the FutureSoft TFTP Server 2000 product. By sending an overly long transfer-mode string, we were able to overwrite both the SEH and the saved EIP. A subsequent write-exception that will occur allows the transferring of execution to our shellcode via the overwritten SEH. This module has been tested against Windows 2000 Professional and for some reason does not seem to work against Windows 2000 Server (could not trigger the overflow at all).

Author(s)

  • MC <mc@metasploit.com>

Platform

Windows

Development

Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':

msf > use exploit/windows/tftp/futuresoft_transfermode
msf exploit(futuresoft_transfermode) > show targets
    ...targets...
msf exploit(futuresoft_transfermode) > set TARGET < target-id >
msf exploit(futuresoft_transfermode) > show options
    ...show and set options...
msf exploit(futuresoft_transfermode) > exploit

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