From owner-freebsd-questions  Thu Sep 17 13:46:30 1998
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Date: Thu, 17 Sep 1998 13:45:30 -0700 (PDT)
From: Doug White <dwhite@resnet.uoregon.edu>
To: Jordan Krushen <jkrushen@home.com>
cc: freebsd-questions@FreeBSD.ORG
Subject: Re: Setuid shell script problem
In-Reply-To: <000201bde1a0$82062660$0300000a@oblivion.purplemedia.com>
Message-ID: <Pine.BSF.4.03.9809171344410.2759-100000@resnet.uoregon.edu>
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On Wed, 16 Sep 1998, Jordan Krushen wrote:

> I have a setuid shell script which doesn't seem to be running as the owner's
> uid.. I'm sure I'm missing something, and I'm not sure what.  Could anyone
> help this new-to-suid-scripts user get this to work? I know this a
> script-specific thing.. if i copy /usr/bin/id to my home dir and make it run
> suid root, I get:

suid shell scripts are a *bad* idea.  In addition the system ignores the
suid bit if you try to run scripts directly.  Use the command

sh . ./test

instead.

> uid=1000(wired) euid=0(root) gid=1000(wired) groups=1000(wired), 0(wheel),
> 7(bin), 1011(samba), 1024(admin)
> 
> which is correct, but through the script I get the following:
> 
> # ls -l test
> -rwsr-x---  1 root  bin  13 Sep 16 01:34 test
> 
> # cat test
> #!/bin/sh -
> /usr/bin/id
> 
> # ./test
> uid=1000(wired) gid=1000(wired) groups=1000(wired), 0(wheel), 7(bin),
> 1011(samba), 1024(admin)
> 

Doug White                               
Internet:  dwhite@resnet.uoregon.edu    | FreeBSD: The Power to Serve
http://gladstone.uoregon.edu/~dwhite    | www.freebsd.org


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