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Does DEP play an important role in securing a machine?


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#1 Baz^^

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Posted 08 May 2007 - 11:01 PM

I was just curious if you guys have DEP protection turned on in your machines... and if you think it plays a key part in securing a machine in your opinion?
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#2 Lucian Bara

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Posted 09 May 2007 - 11:44 AM

buffer overflows are an important part in exploits used on the pc, but

1)some programs aren't DEP compatible (for example i have a problem with the embedded c++ 4 emulator)
2)it doesn't make the pc invulnerable, uninfectable etc.

also, parts of the PDM in kis do the same thing. i have mine truned off on a pc, and left it on on another because there are no issues yet.
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#3 norwegian

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Posted 09 May 2007 - 03:36 PM

Just curious how much it does, it seems in a exploit in the past year or so, DEP was proved useless Lucian. Hardware DEP was effective, but not software. It is even suggested to just turn it off in the bootup.

The idea seems sound, but how good is it, as you have already suggested, it can cause headaches with 3rd party software.

Personally, I think it's a waste of time, unless it was refined/ improved, but like so many things that secure your computer, there is always side affects.

#4 Baz^^

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Posted 09 May 2007 - 03:55 PM

The software DEP built in to XP is utterly useless and as far as I know only protects from one specific type of attack.

Hardware DEP seems to be more useful although most manufacturers (up until Vista was released, by default) had DEP turned OFF.

I have experienced a few program crashes due to DEP, such as with HL2.exe and photoshop cs2, but I just add them to the exclusions list and it doesn't really bother me :D

Do you think hardware DEP would have been effective at protecting against the recent .ani security vulnerability on an unpatched system?
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#5 norwegian

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Posted 09 May 2007 - 04:25 PM

Going by this thread, its too confusing to say, maybe someone who has the experience can comment. At least you would think yes

http://www.dslreport...remark,18085278

I have an animated cursor on the taskbar arrow for extending my startup icons that appeared out of no where, on a box with an AMD processor, and if it was abnormal function, it hasnt been pointed out.

A few reads from DSLR for you

http://www.dslreport...ts hardware dep

http://www.dslreport...ts hardware dep

http://www.dslreport...remark,15152503

and the one that will take weeks to read

http://www.dslreport...remark,15234283

#6 Baz^^

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Posted 09 May 2007 - 04:50 PM

Will have a read sometime soon :D
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