[NT] PeanutHull Local Privilege Escalation

From: SecuriTeam (support_at_securiteam.com)
Date: 07/27/05

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      PeanutHull Local Privilege Escalation
    ------------------------------------------------------------------------

    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:smaillist@gmail.com> Sowhat.
    The original article can be found at:
    <http://secway.org/advisory/AD20050720EN.txt>
    http://secway.org/advisory/AD20050720EN.txt

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