[NT] PeanutHull Local Privilege Escalation

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  PeanutHull Local Privilege Escalation
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SUMMARY

 <http://www.oray.net > Oray Inc. is the world's biggest DDNS (Dynamic 
Domain Name Service) Provider (According to their WEBSITE). PeanutHull is 
the DDNS client.

A local non-privileged user that can access the application via the system 
tray, can use PeanutHull to execute commands with Local System privileges.

DETAILS

Vulnerable Systems:
 * PeanutHull version 3.0 Beta 5

Immune Systems:
 * PeanutHull version 3.0

The vulnerability is caused due to SYSTEM privileges are not dropped when 
accessing the PeanutHull from the System Tray icon. A local non-privileged 
user can access the application via the system tray and can execute 
commands with Local System privileges.

Exploit:
1. Double click on the PeanutHull icon in the Taskbar to open the 
PeanutHull window.
2. Click Help, click BBS
3. Type C:\ in the poped up IE Address BAR
4. Navagate to %WINDIR%\System32\
5. click CMD.exe
6. A new command shell will open with SYSTEM privileges

Exploiting this vulnerability allows local non-privileged user to obtain 
SYSTEM privilege.

Disclosure Timeline:
13.07.05 - Vendor notified via email
14.07.05 - Vendor responded that this problem will be fixed in the 3.0 
final version.
20.07.05 - PeanutHull 3.0 released
20.07.05 - Public disclosure


ADDITIONAL INFORMATION

The information has been provided by  <mailto:[email protected]> Sowhat.
The original article can be found at:  
<http://secway.org/advisory/AD20050720EN.txt> 
http://secway.org/advisory/AD20050720EN.txt



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