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Ignore unknown syscalls on aarch64 #157

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merged 2 commits into from
Nov 16, 2023
Merged

Ignore unknown syscalls on aarch64 #157

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1b713da
Ignore unknown syscalls on aarch64
IvDoorn Nov 16, 2023
9b28e65
Split the x86_64 and aarch64 branches
IvDoorn Nov 16, 2023
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48 changes: 41 additions & 7 deletions controls/4_1_configure_system_accounting_auditd.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -278,9 +278,25 @@

uname = command('uname -m').stdout.strip
if uname == 'x86_64' || uname == 'aarch64'
describe.one do
describe file('/etc/audit/audit.rules') do
its('content') { should match(/^-a (always,exit|exit,always) -F arch=b64 -S chmod -S fchmod -S fchmodat -F auid>=#{uid_min} -F auid!=4294967295 -k perm_mod$/) }
end
describe file('/etc/audit/audit.rules') do
its('content') { should match(/^-a (always,exit|exit,always) -F arch=b64 -S fchmod -S fchmodat -F auid>=#{uid_min} -F auid!=4294967295 -k perm_mod$/) }
end
end

describe.one do
describe file('/etc/audit/audit.rules') do
its('content') { should match(/^-a (always,exit|exit,always) -F arch=b64 -S chown -S fchown -S fchownat -S lchown -F auid>=#{uid_min} -F auid!=4294967295 -k perm_mod$/) }
end
describe file('/etc/audit/audit.rules') do
its('content') { should match(/^-a (always,exit|exit,always) -F arch=b64 -S fchown -S fchownat -F auid>=#{uid_min} -F auid!=4294967295 -k perm_mod$/) }
end
end

describe file('/etc/audit/audit.rules') do
its('content') { should match(/^-a (always,exit|exit,always) -F arch=b64 -S chmod -S fchmod -S fchmodat -F auid>=#{uid_min} -F auid!=4294967295 -k perm_mod$/) }
its('content') { should match(/^-a (always,exit|exit,always) -F arch=b64 -S chown -S fchown -S fchownat -S lchown -F auid>=#{uid_min} -F auid!=4294967295 -k perm_mod$/) }
its('content') { should match(/^-a (always,exit|exit,always) -F arch=b64 -S setxattr -S lsetxattr -S fsetxattr -S removexattr -S lremovexattr -S fremovexattr -F auid>=#{uid_min} -F auid!=4294967295 -k perm_mod$/) }
end
end
Expand All @@ -303,9 +319,22 @@

uname = command('uname -m').stdout.strip
if uname == 'x86_64' || uname == 'aarch64'
describe file('/etc/audit/audit.rules') do
its('content') { should match(/^-a (always,exit|exit,always) -F arch=b64 -S creat -S open -S openat -S truncate -S ftruncate -F exit=-EACCES -F auid>=#{uid_min} -F auid!=4294967295 -k access$/) }
its('content') { should match(/^-a (always,exit|exit,always) -F arch=b64 -S creat -S open -S openat -S truncate -S ftruncate -F exit=-EPERM -F auid>=#{uid_min} -F auid!=4294967295 -k access$/) }
describe.one do
describe file('/etc/audit/audit.rules') do
its('content') { should match(/^-a (always,exit|exit,always) -F arch=b64 -S creat -S open -S openat -S truncate -S ftruncate -F exit=-EACCES -F auid>=#{uid_min} -F auid!=4294967295 -k access$/) }
end
describe file('/etc/audit/audit.rules') do
its('content') { should match(/^-a (always,exit|exit,always) -F arch=b64 -S openat -S truncate -S ftruncate -F exit=-EACCES -F auid>=#{uid_min} -F auid!=4294967295 -k access$/) }
end
end

describe.one do
describe file('/etc/audit/audit.rules') do
its('content') { should match(/^-a (always,exit|exit,always) -F arch=b64 -S creat -S open -S openat -S truncate -S ftruncate -F exit=-EPERM -F auid>=#{uid_min} -F auid!=4294967295 -k access$/) }
end
describe file('/etc/audit/audit.rules') do
its('content') { should match(/^-a (always,exit|exit,always) -F arch=b64 -S openat -S truncate -S ftruncate -F exit=-EPERM -F auid>=#{uid_min} -F auid!=4294967295 -k access$/) }
end
end
end
end
Expand Down Expand Up @@ -365,8 +394,13 @@

uname = command('uname -m').stdout.strip
if uname == 'x86_64' || uname == 'aarch64'
describe file('/etc/audit/audit.rules') do
its('content') { should match(/^-a (always,exit|exit,always) -F arch=b64 -S unlink -S unlinkat -S rename -S renameat -F auid>=#{uid_min} -F auid!=4294967295 -k delete$/) }
describe.one do
describe file('/etc/audit/audit.rules') do
its('content') { should match(/^-a (always,exit|exit,always) -F arch=b64 -S unlink -S unlinkat -S rename -S renameat -F auid>=#{uid_min} -F auid!=4294967295 -k delete$/) }
end
describe file('/etc/audit/audit.rules') do
its('content') { should match(/^-a (always,exit|exit,always) -F arch=b64 -S unlinkat -S renameat -F auid>=#{uid_min} -F auid!=4294967295 -k delete$/) }
end
end
end
end
Expand Down