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You are here: Home arrow Ethical Hacking Discussions and Related Certificationsarrow Network Pen Testingarrow CPT Practical - Feedback Please...
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Author Topic: CPT Practical - Feedback Please...  (Read 63498 times)
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Joshsevo
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« Reply #60 on: October 19, 2011, 01:57:12 PM »

I feel I am over my head on this one.  Sucks cause I wanted it.  No luck on getting the two to be able to talk to each other.

I suppose I am still a bit confusedon which computer am I supposed to use to do the attacking.  I first thought the cptvm1 was the attackeing and I was supposed to get info about it (IP ranges, users, username/passwords) then use that to attack cptvm1.  But in order for me to attack the 2nd one I need the tools loaded onto cptvm1 to use them.  If this is the case then I am having problems getting the programs to execute.

Or..

If I am supposed to use my host computer to attack the two VM's and get the info from there.  This is a bit easier for me, but so far the things I have tried has not worked and I still can't talk to the VM's to begin the attack.

Tried calling the oraganization that offers this cert and they have yet to call me back.....3 weeks ago.  tried calling my teacher from Infosec Institute and he has not picked up or called me back or emailed me back.
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r2s
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« Reply #61 on: October 19, 2011, 05:09:20 PM »

I feel I am over my head on this one.  Sucks cause I wanted it.  No luck on getting the two to be able to talk to each other.

I suppose I am still a bit confusedon which computer am I supposed to use to do the attacking.  I first thought the cptvm1 was the attackeing and I was supposed to get info about it (IP ranges, users, username/passwords) then use that to attack cptvm1.  But in order for me to attack the 2nd one I need the tools loaded onto cptvm1 to use them.  If this is the case then I am having problems getting the programs to execute.

Or..

If I am supposed to use my host computer to attack the two VM's and get the info from there.  This is a bit easier for me, but so far the things I have tried has not worked and I still can't talk to the VM's to begin the attack.

Tried calling the oraganization that offers this cert and they have yet to call me back.....3 weeks ago.  tried calling my teacher from Infosec Institute and he has not picked up or called me back or emailed me back.

Without violating NDA (for the networking issue), all I can say is think back to your pentesting methodologies and how networks work in general. Think about how hosts get IPs and what that interaction looks like. Think about what tools you could use to see network interactions.

Your host machine (if bridged) or guest VM(s) is/are supposed to leverage the two VMs. If you happen to get root on CPTVM1 before CPTVM2 or vice versa then so be it. Smiley

The networking advice sounds extremely basic but if interpreted right you'll soon be on your way. In my experience with this exam, you will definitely find multiple sticking points where things just don't work as expected but the pain and anguish is well worth it and  will be vastly beneficial in your overall development.
« Last Edit: October 19, 2011, 05:13:43 PM by r2s » Logged

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Joshsevo
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« Reply #62 on: October 19, 2011, 05:34:03 PM »

R2s,

Thanks for the response. I am a bit frustrated to say the least.  If you have been keeping up with this thread since I brought it back from the dead you will see that I am a recent graduate and have never had a IT related job for the most part. 
My knowledge of networks is very basic.  IP's come from the ISP.  No idea what they look like or how they are really generated.  No experience in that.  What do you mean leverage the VM's??  How can I get the root if I cannot even ping the VM to use certain brute force tools to crack the password.  Fomr playing around with John the Ripper, it asks for a Target IP to begin.  I don't know that target IP.
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lorddicranius
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« Reply #63 on: October 19, 2011, 06:03:03 PM »

(CPT VM1.rar and CPT VM2.rar).  Once these are started you’ll need to perform a penetration test against these two virtual machines.

No IP addresses will be given.  You must first discover the ip’s of the two virtual machines first.  Once you’ve discovered them you will need to do recon on both machines. You’ll need to configure your network or computer appropriately to operate on the same network or in the same network range of the two VM’s.   You are allowed to use the Linux Attack VM you were given in the Infosec Institute Ethical Hacking class.  Discover if there’s any services running on them that might be vulnerable.  You’ll need to document your network recon efforts.

1) It looks like the CPT VM's are both target machines.  Use either the Linux Attack VM you were given during class or another machine you've setup for attacking (BackTrack, Samurai WTF, etc).

2) As for the IP situation, go back to the networking settings for the VM's (e.g. bridged, internal, etc).  Understand the different network settings used by the VM software you're using (VMWare Player, Virtualbox, etc).  Once you understand that, you'll be able to configure the VM's to the proper network settings and move forward.

As for finding what IP's they've acquired, per the instructions it looks like that's part of the exam so I'm not sure how far I can go with helping...but given you aren't getting any feedback from the cert org or your instructor,  I'll just throw some terms out there and see if you can sort it out Wink DHCP, ARP, Wireshark, nmap...
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« Reply #64 on: October 19, 2011, 08:11:36 PM »

There was not an attack machine or VM given to me.  Just one disc with cptvm1 and cptvm2 on it and a good luck!
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« Reply #65 on: October 19, 2011, 08:53:39 PM »

There should have been another, but at this point, it doesnt matter (you can contact ISI if you cant find it in your packet). Actually, some of the videos go through all this, have you viewed the course videos?

okay, my suggestion:

Turn off your vms and boot up your pc. (Windows) Open up command prompt and insure you have an ip address. If you do, then boot up a new vm booting from CPTVM1. do a ping sweep using nmap from your windows PC. You should find a new device. (i.e the vm.) if that works, do the same with CPTVM2. If you have any problems going through this, PM me.
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« Reply #66 on: October 19, 2011, 11:11:40 PM »

OK answer this for me.

I log onto cptvm1 and I go onto the internet on the VM.  I have wireshark up and catching packets.  Why doesn't wireshark show the HTTP traffic.  I've watched some tutorials about wireshark and they show HTTP traffic when using a regular computer.  (the videos were done on a computer and not a VM).

This is what I am seeing so far.

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SephStorm
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« Reply #67 on: October 19, 2011, 11:13:48 PM »

Couldnt tell you. You should never login to the VM's, except via shell, they are representing remote systems you dont have physical access to.
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« Reply #68 on: October 19, 2011, 11:20:21 PM »

Ok, I open the cmd on my computer.  I type ipconfig and I get the following


Ethernet adapter local area connection:
blah blah blah
blah blah blah blah
IPV4 192.168.1.XXX This is my IP
blah blah blah
blah blah blah

Ethernet Adapter VMware Network Adapter VMnet1:
blah blah blah
blah blah blah
IPv4 192.168.213.1

Ethernet Adapter VMware Network Adapter VMnet8:
blah blah blah
blah blah blah
IPv4  192.168.191.1

I assume these are my VMware IP's?  Why this didn't show the other day I don't know.  Maybe because I had the VM on "host only" and tonight when I got home I changed it to Bridged.

This is what I have so far.  I'm goin to bed.
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lorddicranius
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« Reply #69 on: October 20, 2011, 12:03:26 AM »

Those interfaces you're seeing on your host computer (VMnet1, VMnet8) are interfaces created by the VMWare software that allow all the VM's to communicate.  Picture a physical switched network all contained within your one host computer.  The VM's need a switch to talk to each other.  That's what these interfaces do.

http://www.vmware.com/support/ws55/doc/ws_net_component_vswitch.html

So what you can gather from that, is depending on the type of networking you configured for the VM's, you'll know which subnet they reside on.

There's some images in these links that may help you visualize it:
- NAT: http://www.vmware.com/support/ws55/doc/ws_net_configurations_nat.html
- Host-only: http://www.vmware.com/support/ws55/doc/ws_net_configurations_hostonly.html
« Last Edit: October 20, 2011, 12:07:47 AM by lorddicranius » Logged

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« Reply #70 on: October 20, 2011, 11:04:39 AM »

ok, your computer is getting an IP address. I would ignore the VMNet ips. If you still cannot sweep the vms, I would check your router settings, and insure you are on DHCP and you have enough leases in your pool to give them IP's, and make sure you arent doing anything crazy like MAC filtering, ect. Failing that, PM me and we'll setup a call, i'll try to get you setup.

A very important question though, did you watch the videos?
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« Reply #71 on: October 20, 2011, 01:54:52 PM »

No not yet.  I won't have time until late tonight or tomorrow and over the weekend. Going to my internship to night for a few hrs as he has a new case he wants my help on.
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« Reply #72 on: October 21, 2011, 01:41:31 AM »

Oh, my friend, you need to view the videos before you start the exam!!

I see you have the CEH... im a little confused...
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Joshsevo
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« Reply #73 on: October 21, 2011, 01:15:31 PM »

What are you confused on?
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« Reply #74 on: October 21, 2011, 03:48:40 PM »

When I took that course, I received a disk with the attack machine from class. The instructor told us we were allowed to log into the boxes as we probably wouldn't be able to find remote exploits for the machines.

You may want to consider using a network discovery tool like autoscan. It will find host even if they aren't on the same subnet or network. That should help you.
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