Re: Insect Pro - Advisory 2011 0428 - Zero Day - Heap Buffer Overflow in xMatters APClient

[Mario Vilas <mvilas () gmail com>]

Precisely. The poc triggers the bug by passing a very long command line
argument, so it's assumed the attacker already has executed code. The only
way this is exploitable is if the binary has suid (then the attacker can
elevate privileges) or the command can be executed remotely (and the
attacker additionaly cannot execute any other commands, but can mysteriously
control the arguments). Unless either scenario is researched (and nothing in
the advisory tells me so) I call bullshit.

On Thu, Apr 28, 2011 at 6:09 PM, <Valdis.Kletnieks () vt edu> wrote:

> On Thu, 28 Apr 2011 14:40:22 -0300, Mario Vilas said:
>
> > Is the suid bit set on that binary? Otherwise, unless I'm missing
> something
> > it doesn't seem to be exploitable by an attacker...
>
> Who cares?  You got code executed on the remote box, that's the *hard*
> part.
> Use that to inject a callback shell or something, use *that* to get
> yourself a shell
> prompt.  At that point, download something else that exploits you to root -
> if
> you even *need* to, as quite often the Good Stuff is readable by non-root
> users.



-- 
“There's a reason we separate military and the police: one fights the enemy
of the state, the other serves and protects the people. When the military
becomes both, then the enemies of the state tend to become the people.”

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