DATAC RealWin SCADA Server 2.0 (Build 6.1.8.10) – Buffer Overflow

• Exploit Database
• 14 阅读

• 作者： Luigi Auriemma
  日期： 2010-10-15
• 类别：

  • dos
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/15259/

• Source: http://aluigi.org/adv/realwin_1-adv.txt
  
  #######################################################################
  
   Luigi Auriemma
  
  Application:DATAC RealWin
  http://www.dataconline.com/software/realwin.php
  http://www.realflex.com
  Versions: <= 2.0 (Build 6.1.8.10)
  Platforms:Windows
  Bugs: A] stack overflow in SCPC_INITIALIZE and SCPC_INITIALIZE_RF
  B] stack overflow in SCPC_TXTEVENT
  Exploitation: remote, versus server
  Date: 15 Oct 2010
  Author: Luigi Auriemma
  e-mail: aluigi@autistici.org
  web:aluigi.org
  
  
  #######################################################################
  
  
  1) Introduction
  2) Bugs
  3) The Code
  4) Fix
  
  
  #######################################################################
  
  ===============
  1) Introduction
  ===============
  
  
  "RealWin is a SCADA server package for medium / small applications."
  
  
  #######################################################################
  
  =======
  2) Bugs
  =======
  
  
  -----------------------------------------------------------
  A] stack overflow in SCPC_INITIALIZE and SCPC_INITIALIZE_RF
  -----------------------------------------------------------
  
  The service of the server running on port 912 is vulnerable to a
  stack based buffer-overflow caused by the usage of sprintf() for
  building a particular string with the data supplied by the attacker:
  
  sprintf(
  stack_buffer,
  "C:\\Program Files\\...path_of_RealWin...\\data\\crt\\fwd\\tel\\%s.%d",
  attacker_string,
  attacker_16bit_number);
  
  
  ----------------------------------
  B] stack overflow in SCPC_TXTEVENT
  ----------------------------------
  
  The same server is vulnerable also to another stack based overflow
  caused by the usage of strcpy() with the data supplied by the attacker.
  
  
  #######################################################################
  
  ===========
  3) The Code
  ===========
  
  
  http://aluigi.org/poc/realwin_1.zip
  https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/15259.zip (realwin_1.zip)
  
  nc SERVER 912 < realwin_1a.dat
  nc SERVER 912 < realwin_1b.dat
  nc SERVER 912 < realwin_1c.dat
  
  
  #######################################################################
  
  ======
  4) Fix
  ======
  
  
  No fix.
  
  
  #######################################################################