full-disclosure - Re: qmail security guarantee questioned

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Message-ID: <20050531075049.GA12388@sivokote.iziade.m$>
Date: Tue May 31 08:50:31 2005
From: guninski at guninski.com (Georgi Guninski)
Subject: Re: qmail security guarantee questioned

On Thu, May 26, 2005 at 12:35:48PM +0100, Justin Murdock wrote:
> you have yet to demonstrate that this bug will allow the system to be 
> compromised - you'll be able to save a file in /var/qmail/queue, then 
> exec it, or a system binary - but you'll still be stuck with very poor 
> privileges.

the program at:
http://www.guninski.com/where_do_you_want_billg_to_go_today_4.html#qpopup
executes code with root privileges via qmail-popup for me.

the same commands zero writing bug.

notes for the qmail fanatics:

- this is not a dos, this is remote code execution with root privileges
- with local access the offsets are easily found, so exploitation is very 
reliable in this case
- djb gives installation instructions in INSTALL which allow root compromise
- the payload consists of "int3" which produces trace trap for the microsoft
certified solitaire experts (MCSEs) who can't get it

-- 
where do you want bill gates to go today?