95 lines
No EOL
2.3 KiB
Text
95 lines
No EOL
2.3 KiB
Text
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.
|
|
|
|
|
|
####################################################################### |