Hi, 
Thanx for your replies.
Ok then, It seems I over reacted for what seems to be a normal feature.
Did anybody ever try to list/document the programs which behave this
way ?

On the contrary launching firefox from within a "su" if there 's already
a firefox loaded is useless.

This bug case can be closed if it still depends on me.

Regards,

Le mardi 22 novembre 2005 à 13:21 +0100, Mike Hommey a écrit :
> severity 340284 normal
> merge 340284 238533
> thanks
> 
> On Tue, Nov 22, 2005 at 12:36:46PM +0100, S. Thommerel <email address hidden> wrote:
> > Package: mozilla-firefox
> > Version: 1.0.7-1
> > Severity: critical
> > Tags: security
> > Justification: root security hole
> > 
> > 
> > 
> > To reproduce this bug:
> > 
> >  su root and then load firefox from the term. Then launch firefox from
> >  another unrelated and normal user terminal. The newly launched firefox reads root's
> >  profile and gets root's rights.
> > 
> >  I normally have no rights to save anything in /usr/share with my user
> >  account. I used firefox as root to go and grab an icon for xfce4 that I
> >  could save in /usr/share/pixmaps. After that the download tab was the
> >  only remaining part of root's firefox.
> >  I loaded firefox (normal user account) and it didn't not show my normal
> >  homepage. I tried to save google's logo in /usr/share/pixmaps. It
> >  worked!!!
> 
> You ran your firefox from the same display, thus using the one that was
> already on the display. It's a feature. It may be annoying, but not a
> security problem : if you have a root mozilla/firefox on your display,
> well, you already have root access.
> If you'd try on another display (Xnest or whatever), you'd see running
> firefox from there would bring a new instance.
> 
> Downgrading severity, and merging with duplicates.
> 
> Mike
> > 
> >  
> > 
> >  
> > -- System Information:
> > Debian Release: testing/unstable
> >   APT prefers testing
> >   APT policy: (500, 'testing')
> > Architecture: i386 (i686)
> > Shell:  /bin/sh linked to /bin/bash
> > Kernel: Linux 2.6.14
> > Locale: LANG=C, LC_CTYPE=fr_FR (charmap=ANSI_X3.4-1968) (ignored: LC_ALL set to POSIX)
> > 
> > Versions of packages mozilla-firefox depends on:
> > ii  debianutils               2.15.1         Miscellaneous utilities specific t
> > ii  fontconfig                2.3.2-1        generic font configuration library
> > ii  libatk1.0-0               1.10.3-1       The ATK accessibility toolkit
> > ii  libc6                     2.3.5-6        GNU C Library: Shared libraries an
> > ii  libfontconfig1            2.3.2-1        generic font configuration library
> > ii  libfreetype6              2.1.7-2.4      FreeType 2 font engine, shared lib
> > ii  libgcc1                   1:4.0.2-2      GCC support library
> > ii  libglib2.0-0              2.8.3-1        The GLib library of C routines
> > ii  libgtk2.0-0               2.6.10-1       The GTK+ graphical user interface 
> > ii  libidl0                   0.8.5-1        library for parsing CORBA IDL file
> > ii  libjpeg62                 6b-10          The Independent JPEG Group's JPEG 
> > ii  libkrb53                  1.3.6-5        MIT Kerberos runtime libraries
> > ii  libpango1.0-0             1.8.2-3        Layout and rendering of internatio
> > ii  libpng12-0                1.2.8rel-5     PNG library - runtime
> > ii  libstdc++6                4.0.2-2        The GNU Standard C++ Library v3
> > ii  libx11-6                  6.8.2.dfsg.1-7 X Window System protocol client li
> > ii  libxext6                  6.8.2.dfsg.1-7 X Window System miscellaneous exte
> > ii  libxft2                   2.1.7-1        FreeType-based font drawing librar
> > ii  libxinerama1              6.8.2.dfsg.1-7 X Window System multi-head display
> > ii  libxp6                    6.8.2.dfsg.1-7 X Window System printing extension
> > ii  libxt6                    6.8.2.dfsg.1-7 X Toolkit Intrinsics
> > ii  psmisc                    21.8-1         Utilities that use the proc filesy
> > ii  xlibs                     6.8.2.dfsg.1-7 X Window System client libraries m
> > ii  zlib1g                    1:1.2.3-4      compression library - runtime
> > 
> > mozilla-firefox recommends no packages.
> > 
> > -- no debconf information
> > 
> > 
>