full-disclosure - Re: Hikaru

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

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

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/