On Tue, Dec 13, 2011 at 3:11 PM, HI-TECH .
<isowarez.isowarez.isowarez () googlemail com> wrote:
Yes you are somewhat right, as this is the old discussion about if
code execution inside an ftpd
is a vulnerability itself or only local code execution. I have the
opinion that an ftpd which does not allow to run code
should restrict the user so, and if there is a way to execute code it
it is a vulnerability.
Take the example of a vsftpd configured for anonymous ftp and write
access in /var/ftp. The attacker might
execute code using the vulnerability without authentication
credentials, or for example an attacker only has
access to a user account configured for ftp.
Basically you are right, vsftpd uses privsep so its a not so risky
vulnerability.
/Kingcope
I completely misread what you were asking about before. You're
exactly right, disregard my previous comment.
-Dan
Am 13. Dezember 2011 20:56 schrieb Dan Rosenberg <dan.j.rosenberg () gmail com>:
Anyone with an up2date linux local root which only makes use of syscalls? :>
This is all fun stuff, and definitely worth looking into further, but
if you've got a local kernel exploit that you can trigger from inside
vsftpd, you don't need this (potential) vulnerability in vsftpd - you
already win.
-Dan