full-disclosure - Re: Hikaru

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Message-ID: <Pine.LNX.4.64.0712230029220.12192@fuckingchien.gagne>
Date: Sun, 23 Dec 2007 01:01:22 +0100 (CET)
From: twiz <twiz@...il.it>
To: full-disclosure@...ts.grok.org.uk
Subject: Re: Hikaru

> 10 pts to the first person using this approach to dlopen for full
> arbitrary execution :)
>
> so which is more useful in practice, NX or ASLR?

NX + ASLR + PIE/RANDEXEC ;)

[oh well, someone could argue, not having bug at all.]

BTW, I don't like the statement in the paper which basically considers the 
efforts into the deployment of "W^X approaches" a consequence of 
understimating ret-into-* (libc/text/code chunks/gadgets) attacks.
W^X just addresses different problems.

PIE and RANDEXEC are the real opponents to those attacks 
and it's a bit bad that they are not mentioned at all in the paper.

   - twiz

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