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SV-257792 #23

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21 changes: 18 additions & 3 deletions controls/SV-257792.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@

If any output is returned, this is a finding.

Check that virtual system calls are disabled by default to persist in kernel updates with the following command:
Check that virtual system calls are disabled by default to persist in kernel updates with the following command:

$ sudo grep vsyscall /etc/default/grub

Expand All @@ -34,8 +34,23 @@
tag stig_id: 'RHEL-09-212035'
tag gtitle: 'SRG-OS-000480-GPOS-00227'
tag fix_id: 'F-61457r925362_fix'
tag satisfies: ['SRG-OS-000480-GPOS-00227', 'SRG-OS-000134-GPOS-00068']
tag satisfies: %w(SRG-OS-000480-GPOS-00227 SRG-OS-000134-GPOS-00068)
tag 'documentable'
tag cci: ['CCI-000366', 'CCI-001084']
tag cci: %w(CCI-000366 CCI-001084)
tag nist: ['CM-6 b', 'SC-3']

if virtualization.system.eql?('docker')
impact 0.0
describe 'Control not applicable within a container' do
skip 'Control not applicable within a container'
end
else
describe parse_config(command('grub2-editenv - list').stdout) do
its('kernelopts') { should match /vsyscall=none/ }
end

describe parse_config_file('/etc/default/grub') do
its('GRUB_CMDLINE_LINUX') { should match /vsyscall=none/ }
end
end
end