[NT] Dell TrueMobile Wireless Help Privilege Escalation Vulnerability

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To: list@securiteam.com
Date: 26 Feb 2004 10:55:06 +0200

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  Dell TrueMobile Wireless Help Privilege Escalation Vulnerability
------------------------------------------------------------------------

SUMMARY

Due to a vulnerability in Dell TrueMobile's systray applet, the applet's
inability to drop SYSTEM privileges when it tries to show the help file, a
local attacker can gain administrative/SYSTEM privileges.

DETAILS

Vulnerable Systems:
 * Windows XP and Dell TrueMobile 1300 WLAN Mini-PCI Card Utility Tray
Applet version 3.10.39.0

The SYSTEM rights are not dropped when accessing the Dell TrueMobile
Wireless Help from the systray applet. By right clicking and choosing Help
-> Help Files and then from the help; Jump to URL
C:\WINDOWS\SYSTEM32\CMD.EXE, gives you SYSTEM privileges. You can also
gain SYSTEM privileges by right clicking and choosing Help -> About. By
clicking on a link, Internet Explorer will start with SYSTEM privileges.
Programs started from the web browser do not get their privileges dropped.

ADDITIONAL INFORMATION

The information has been provided by <mailto:ian.vitek@sigtrap.org> Ian
Vitek.

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