Re: Need some security advice for systemtap

[Tomasz Chmielewski <mangoo@xxxxxxxx>]

David Smith schrieb:

(...)

> Some basic ideas about how we can allow users without sudo access to run 
> "blessed" scripts/modules can be seen at 
> <http://sources.redhat.com/bugzilla/show_bug.cgi?id=4523>,
>
> So, I'm looking for thoughts, criticisms, pointers, etc. to do this in a 
>  manner that won't allow a system to be easily compromised.  We're in 
> the fairly early stages of this idea, and I'm looking for direction 
> before heading down the wrong road.

Am I right? Is it security based on md5sum?

I'm not sure how easy would it be to "produce" two kernel modules having 
the same MD5 checksum - but before you continue, you might want to read 
a short article called "Attacking Hash Functions by Poisoned Messages":

http://www.cits.rub.de/MD5Collisions/


--
Tomasz Chmielewski
http://wpkg.org

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