This is currently only qmail on AMD64 with > 4GB of virtual memory, but people should upgrade anyway.

Devdas Bhagat

----- Forwarded message from Georgi Guninski guninski@guninski.com -----

From: "Georgi Guninski" guninski@guninski.com Date: Tue, 31 May 2005 07:00:22 -0400 To: rgiambalvo@admin.giami.net Cc: full-disclosure@lists.grok.org.uk, qmail@list.cr.yp.to Subject: [Full-disclosure] Re: qmail security guarantee questioned X-Mailer: Microsoft CDO for Exchange 2000 User-Agent: Mutt/1.5.6i

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