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IT Security and Insecurity Portal |
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Uploading a shell with Administrator acc? |
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 Posted: Mon Jun 15, 2009 1:06 am |
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| ThinSmoke |
| Advanced user |
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| Joined: Nov 15, 2008 |
| Posts: 55 |
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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 
Any suggestions please?
Thanks. |
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| Posted: Tue Jun 16, 2009 2:26 am |
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| ThinSmoke |
| Advanced user |
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| Joined: Nov 15, 2008 |
| Posts: 55 |
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| No1? |
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| Posted: Wed Jun 17, 2009 2:31 pm |
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| timor |
| Active user |
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| Joined: Jun 07, 2009 |
| Posts: 30 |
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| 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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| Posted: Wed Jun 17, 2009 5:43 pm |
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| JasonB |
| Regular user |
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| Joined: Apr 05, 2009 |
| Posts: 23 |
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I assume you've tried the basics (putting a shell as shell.php.jpg)
Have no experience with IPB. |
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| Posted: Wed Jun 17, 2009 11:51 pm |
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| ThinSmoke |
| Advanced user |
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| Joined: Nov 15, 2008 |
| Posts: 55 |
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| if you upload a x.php.jpg wouldnt it be parsed as a jpg? Ö.ö |
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| Posted: Thu Jun 18, 2009 12:59 pm |
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| waraxe |
| Site admin |
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| Joined: May 11, 2004 |
| Posts: 2407 |
| Location: Estonia, Tartu |
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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":
...
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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()}}
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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
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| Posted: Sat Jun 20, 2009 1:51 am |
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| ThinSmoke |
| Advanced user |
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| Joined: Nov 15, 2008 |
| Posts: 55 |
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Thx waraxe but didnt work out..
No permissions to write there
Could not write back to D:\Hosting\4204178\html\forums/cache/lang_cache/en/lang_help.php |
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| Posted: Thu Jul 23, 2009 8:09 am |
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| xalupeao |
| Regular user |
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| Joined: May 23, 2009 |
| Posts: 17 |
| Location: Santiago, Chile |
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create a new lenguaje based ... =)
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what code for injected shell |
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| Posted: Thu Jul 23, 2009 5:43 pm |
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| ThinSmoke |
| Advanced user |
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| Joined: Nov 15, 2008 |
| Posts: 55 |
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| Just basic php dude lol.. |
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| Posted: Fri Jul 24, 2009 3:08 am |
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| xalupeao |
| Regular user |
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| Joined: May 23, 2009 |
| Posts: 17 |
| Location: Santiago, Chile |
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| Posted: Wed Oct 21, 2009 3:50 pm |
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| nuker |
| Active user |
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| Joined: Aug 16, 2009 |
| Posts: 39 |
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| 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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| Posted: Wed Oct 21, 2009 9:27 pm |
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| RG007145 |
| Active user |
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| Joined: May 04, 2008 |
| Posts: 27 |
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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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| Posted: Thu Oct 22, 2009 10:30 am |
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| nuker |
| Active user |
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| Joined: Aug 16, 2009 |
| Posts: 39 |
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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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| Posted: Thu Oct 22, 2009 11:26 am |
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| pexli |
| Valuable expert |
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| Joined: May 24, 2007 |
| Posts: 665 |
| Location: Bulgaria |
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| nuker read some books for apache,php,mysql,UNIX servers ...etc |
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| Posted: Thu Oct 22, 2009 11:53 am |
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| nuker |
| Active user |
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| Joined: Aug 16, 2009 |
| Posts: 39 |
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| 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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