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Touch and Timestamps

Posted on 1998-04-06
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Last Modified: 2010-04-21
I know that touch is used to change the timestamp of a file, but why is this often linked to security considerations? I mean, simply being able to change the timestamp of a file (whether or not you own it) can't give any kind of unwanted control over the file, can it?
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Question by:vexil
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Talence earned 150 total points
ID: 2009086
Giving files another timestamp than the time they were just changed can be used in an attempt to cover up tracks. Some
paranoia admin/scripts may be fooled into thinking the file
has not been edited, etc. This is for the case you have already
obtained control. On the other hand, setting 'crazy' timestamps
on files that certain programs depend on _may_ cause some interesting side effects.

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by:vexil
ID: 2009087
Thanks, Talence.
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