Add the MAGIC_SYSRQ_DEFAULT_ENABLE check

Thanks to @thestinger.

Refers to #104.

diff --git a/kernel_hardening_checker/checks.py b/kernel_hardening_checker/checks.py
index f5048db019f12e92cafa205b0e5a9008f11f3da7..fda5d46986f4f229c3e839f49f2107751005e907 100755 (executable)
--- a/kernel_hardening_checker/checks.py
+++ b/kernel_hardening_checker/checks.py
@@ -390,7 +390,6 @@ def add_kconfig_checks(l: List[ChecklistObjType], arch: str) -> None:
     l += [KconfigCheck('cut_attack_surface', 'clipos', 'STAGING', 'is not set')]
     l += [KconfigCheck('cut_attack_surface', 'clipos', 'KSM', 'is not set')] # to prevent FLUSH+RELOAD attack
     l += [KconfigCheck('cut_attack_surface', 'clipos', 'KALLSYMS', 'is not set')]
-    l += [KconfigCheck('cut_attack_surface', 'clipos', 'MAGIC_SYSRQ', 'is not set')]
     l += [KconfigCheck('cut_attack_surface', 'clipos', 'KEXEC_FILE', 'is not set')] # refers to LOCKDOWN (permissive)
     l += [KconfigCheck('cut_attack_surface', 'clipos', 'USER_NS', 'is not set')] # user.max_user_namespaces=0
     l += [KconfigCheck('cut_attack_surface', 'clipos', 'X86_CPUID', 'is not set')]
@@ -399,6 +398,8 @@ def add_kconfig_checks(l: List[ChecklistObjType], arch: str) -> None:
     l += [KconfigCheck('cut_attack_surface', 'clipos', 'EFI_CUSTOM_SSDT_OVERLAYS', 'is not set')]
     l += [KconfigCheck('cut_attack_surface', 'clipos', 'AIO', 'is not set')]
 #   l += [KconfigCheck('cut_attack_surface', 'clipos', 'IKCONFIG', 'is not set')] # no, IKCONFIG is needed for this check :)
+    l += [OR(KconfigCheck('cut_attack_surface', 'clipos', 'MAGIC_SYSRQ', 'is not set'),
+             KconfigCheck('cut_attack_surface', 'a13xp0p0v', 'MAGIC_SYSRQ_DEFAULT_ENABLE', '0x0'))]
 
     # 'cut_attack_surface', 'lockdown'
     l += [KconfigCheck('cut_attack_surface', 'lockdown', 'EFI_TEST', 'is not set')] # refers to LOCKDOWN