Jon Hart
106 lines
1.8 KiB
Ruby
106 lines
1.8 KiB
Ruby
# -*- coding: binary -*-
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require 'msf/core/post/common'
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module Msf
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class Post
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module Linux
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module Kernel
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include ::Msf::Post::Common
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#
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# Returns uname output
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#
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# @return [String]
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#
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def uname(opts='-a')
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cmd_exec("uname #{opts}").to_s
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rescue
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raise "Failed to run uname #{opts}"
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end
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#
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# Returns the kernel release
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#
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# @return [String]
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#
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def kernel_release
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uname('-r')
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end
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#
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# Returns the kernel version
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#
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# @return [String]
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#
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def kernel_version
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uname('-v')
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end
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#
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# Returns the kernel name
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#
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# @return [String]
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#
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def kernel_name
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uname('-s')
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end
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#
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# Returns the kernel hardware
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#
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# @return [String]
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#
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def kernel_hardware
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uname('-m')
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end
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#
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# Returns the kernel modules
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#
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# @return [Array]
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#
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def kernel_modules
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cmd_exec('cat /proc/modules').to_s.scan(/^[^ ]+/)
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rescue
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raise 'Could not determine kernel modules'
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end
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#
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# Returns true if kernel and hardware supports Supervisor Mode Access Prevention (SMAP), false if not.
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#
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# @return [Boolean]
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#
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def smap_enabled?
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cmd_exec('cat /proc/cpuinfo').to_s.include? 'smap'
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rescue
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raise 'Could not determine SMAP status'
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end
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#
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# Returns true if kernel and hardware supports Supervisor Mode Execution Protection (SMEP), false if not.
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#
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# @return [Boolean]
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#
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def smep_enabled?
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cmd_exec('cat /proc/cpuinfo').to_s.include? 'smep'
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rescue
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raise 'Could not determine SMEP status'
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end
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#
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# Returns true if user namespaces are enabled, false if not.
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#
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# @return [Boolean]
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#
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def userns_enabled?
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return false if cmd_exec('cat /proc/sys/user/max_user_namespaces').to_s.eql? '0'
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cmd_exec('cat /proc/sys/kernel/unprivileged_userns_clone').to_s.eql? '1'
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rescue
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raise 'Could not determine userns status'
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end
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end # Kernel
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end # Linux
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end # Post
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end # Msf
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