a problem with suid + chroot + bash

[email protected] Fri, 18 Apr 2003 03:26:20 -0600 (MDT)

Newsgroups	gmane.comp.gnu.sh-utils.bugs
Message-ID	<[email protected]>

When using a command such as "chroot . bash --login", it will not source /etc/profile if the chroot binary is suid root (chmod +s `which chroot`).  I find this behavior quite strange, though perhaps there is a reason for it.

Software used:

chroot (GNU sh-utils) 2.0
Written by Roland McGrath.
Copyright (C) 1999 Free Software Foundation, Inc.

GNU bash, version 2.05.0(1)-release (i386-slackware-linux-gnu)
Copyright 2000 Free Software Foundation, Inc.

Copyright (C) 1992-1999, 2000, 2001 Free Software Foundation, Inc.
Compiled by GNU CC version 2.95.3 20010315 (release).
Compiled on a Linux 2.4.4 system on 2001-05-25.
Available extensions:
   GNU libio by Per Bothner
   crypt add-on version 2.1 by Michael Glad and others
   linuxthreads-0.9 by Xavier Leroy
   BIND-8.2.3-T5B
   libthread_db work sponsored by Alpha Processor Inc
   NIS(YP)/NIS+ NSS modules 0.19 by Thorsten Kukuk

Thanks,

 - raven morris