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Last reply by 11-07-2014 Unsolved
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2 Bronze

SECURITY ISSUE Dell Studio XPS 1645

Hi I would like to get all the help from dell to fix an issue. All dell studio xps models are affected and perhaps more. Any bios versions as well to date A12, A11 have been tested and show the same problems. I have gone through extensive testing calling up many people who have xps 1645's and seen the exact same issue on each of them. The issue: Bios factory defaults when restarting using only battery (no ac adapter plugged). This can let an attacker get into your system for example If you have a bios power on password the attacker can get into your system by rebooting your computer, The bios then factory resets and boom no more password prompt. Try to do it and see, put any settings in bios then restart the computer from windows and see that the options has been reset.

You can also see and test this glitch out for yourselves. Please note the glitch happens only on battery power! Enable for instance an option like summary screen in the bios. Then after the dell screen on boot you will see a summary screen. Now go into windows and reboot. (You may do this before the login screen.) Upon rebooting you will notice that the summary screen is no longer present. If you access the bios you will see this option set back to disabled! The same thing happens to all the options in this bios.

Dell I am hoping you can get this issue fixed and please try to test this out on other machines. So far I have tested this out on systems which have ati 4670 motherboards, and ati 5730 motherboards. Both the same issue occurred on systems running 6 gb of ram and 8gb orf ram, a 720 processor and 740 processor, A12 bios and A11 bios.

So my general understanding is that it must be a bios glitch or bug. As for the rest of you guys here on this forum please test this out and write back your results.

Steps used to re-enact the glitch: First use no ac adapter. Then access the bios and put a setting like summary screen in found in the advanced bios menu. Save the bios settings, watch how the Dell screen appears and summary screen appears afterward. Then when the windows login screen appears restart the computer (from the bottom right little icon) and watch to see if the summary screen is present! Note do not try to enter the bios now! Just watch to see if the summary screen appeared or not. You may access the bios on the next reboot to find it set back to factory defaults.

 

 

Replies (22)
3 Silver

I have tried this out- the BIOS resets the values to the default with a restart on battery.

In addition to being a security threat, it's plain annoying that our values reset.

BIOS A09 here

2 Bronze
2 Bronze

I can confirm that this problem also affects me exactly as described by the original poster.  I have a Stuido XPS 16 (1645) running the latest bios from Dell.  Very annoying because settings like "Wake on USB" and disabling bluetooth/WWAN are all affected.  

2 Bronze
2 Bronze

I am the same issue, too.

My touch-sensitive radio button's function keeps getting reset! :(

~Ibrahim~

2 Bronze
2 Bronze

I wonder if any Dell tech is going to help us out on this thread.....

Moderator
Moderator

Hi All,

Welcome to the Dell Community. Thank you for notifying the security issue on this forum. I have escalated this issue, soon we will have our engineers look into this.

I will update you all ASAP.

 

-Niranjan

2 Bronze
2 Bronze

thanks hopefully we can get a new bios or a fix

2 Bronze
2 Bronze

To Dell Technicians a note the problem still exists with the new bios A13.. By using multiple shutdown/restart/hibernate sequences on battery power and on ac charger only!!!!

Bios A13 prevents it from happening on each battery restart BUT DOES NOT FIX THE ISSUE!!!!

2 Bronze
2 Bronze

To Dell Technicians a note the problem still exists with the new bios A13.. By using multiple shutdown/restart/hibernate sequences on battery power and on ac charger only!!!!

Bios A13 prevents it from happening on each battery restart BUT DOES NOT FIX THE ISSUE!!!!

 

Also to add I did a sleep cycle. I will narrow down the exact procedure to re-enact the problem! Please let your engineers know that this problem still exists!

3 Silver

To Dell Technicians a note the problem still exists with the new bios A13.. By using multiple shutdown/restart/hibernate sequences on battery power and on ac charger only!!!!

Bios A13 prevents it from happening on each battery restart BUT DOES NOT FIX THE ISSUE!!!!

 

To be fair, we were never told that A13 fixes the problem.  We should wait to be "updated" by the nice Dell person.

 

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