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Luigi Auriemma
Application: DAQFactory
http://www.azeotech.com/daqfactory.php
Versions: <= 5.85 build 1853
Platforms: Windows
Bug: stack overflow
Exploitation: remote
Date: 13 Sep 2011
Author: Luigi Auriemma
e-mail: [email protected]
web: aluigi.org
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1) Introduction
2) Bug
3) The Code
4) Fix
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===============
1) Introduction
===============
DAQFactory is an HMI/SCADA software.
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2) Bug
======
When DAQFactory is running it listens on the UDP port 20034 for NETB
packets of max 0x400 bytes.
The software is affected by a stack overflow in the code that logs the
informations of the incoming packet allowing an attacker to execute
malicious code:
005C3FB0 /$ 6A FF PUSH -1
005C3FB2 |. 68 E6777D00 PUSH DAQFacto.007D77E6
005C3FB7 |. 64:A1 00000000 MOV EAX,DWORD PTR FS:[0]
005C3FBD |. 50 PUSH EAX
005C3FBE |. 64:8925 00000000 MOV DWORD PTR FS:[0],ESP
005C3FC5 |. 81EC 2C020000 SUB ESP,22C
...skip...
005C41B2 |. 8D8C24 7C010000 LEA ECX,DWORD PTR SS:[ESP+17C]
005C41B9 |. 68 B02C9000 PUSH DAQFacto.00902CB0 ; "MAC:[%02x-%02X-%02X-%02X-%02X-%02X] IP:%d.%d.%d.%d DHCP:%d.%d.%d.%d %s%s"
005C41BE |. 51 PUSH ECX
005C41BF |. FF15 6CC07F00 CALL DWORD PTR DS:[<&MSVCRT.sprintf>]
..and..
005C423A |. 8D8C24 6C010000 LEA ECX,DWORD PTR SS:[ESP+16C]
005C4241 |. 68 682C9000 PUSH DAQFacto.00902C68 ; "MAC: [%02x-%02X-%02X-%02X-%02X-%02X] IP:%d.%d.%d.%d %s%s"
005C4246 |. 51 PUSH ECX
005C4247 |. FF15 6CC07F00 CALL DWORD PTR DS:[<&MSVCRT.sprintf>]
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3) The Code
===========
http://aluigi.org/poc/daqfactory_1.dat
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/17841.dat
nc SERVER 20034 -u < daqfactory_1.dat
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4) Fix
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No fix.
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