96 lines
2.5 KiB
Ruby
96 lines
2.5 KiB
Ruby
##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < Msf::Post
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include Msf::Post::File
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def initialize(info = {})
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super(
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update_info(
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info,
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'Name' => 'Linux Gather Container Detection',
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'Description' => %q{
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This module attempts to determine whether the system is running
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inside of a container and if so, which one. This module supports
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detection of Docker, WSL, LXC, Podman and systemd nspawn.
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},
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'License' => MSF_LICENSE,
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'Author' => [ 'James Otten <jamesotten1[at]gmail.com>'],
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'Platform' => [ 'linux' ],
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'SessionTypes' => [ 'shell', 'meterpreter' ]
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)
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)
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end
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# Run Method for when run command is issued
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def run
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container = nil
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# Check for .dockerenv file
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if container.nil? && file?('/.dockerenv')
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container = 'Docker'
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end
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# Check for .dockerinit file
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if container.nil? && file?('/.dockerinit')
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container = 'Docker'
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end
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# Check for /.containerenv file
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if container.nil? && file?('/run/.containerenv')
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container = 'Podman'
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end
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# Check for /dev/lxd/sock file
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if container.nil? && directory?('/dev/lxc')
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container = 'LXC'
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end
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# Check for WSL, as suggested in https://github.com/Microsoft/WSL/issues/423#issuecomment-221627364
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if container.nil? && file?('/proc/sys/kernel/osrelease')
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osrelease = read_file('/proc/sys/kernel/osrelease')
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if osrelease
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case osrelease.tr("\n", ' ')
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when /WSL|Microsoft/i
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container = 'WSL'
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end
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end
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end
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# Check cgroup on PID 1
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if container.nil?
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cgroup = read_file('/proc/1/cgroup')
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if cgroup
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case cgroup.tr("\n", ' ')
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when /docker/i
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container = 'Docker'
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when /lxc/i
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container = 'LXC'
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end
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end
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end
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# Check for the "container" environment variable
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if container.nil?
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container_variable = get_env('container')
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case container_variable
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when 'lxc'
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container = 'LXC'
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when 'systemd-nspawn'
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container = 'systemd nspawn'
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when 'podman'
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container = 'podman'
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end
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end
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if container
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print_good("This appears to be a '#{container}' container")
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report_virtualization(container)
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else
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print_status('This does not appear to be a container')
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end
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end
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end
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