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kernel-hardening-checker
Commit befa4a35 by Alexander Popov
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Use += instead of append() for checklist

parent 7509302a
Showing with 187 additions and 187 deletions
kconfig_hardened_check/__init__.py
......@@ -269,252 +269,252 @@ def detect_version(fname):
return None, 'no kernel version detected'
def construct_checklist(checklist, arch):
def construct_checklist(l, arch):
modules_not_set = OptCheck('cut_attack_surface', 'kspp', 'MODULES', 'is not set')
devmem_not_set = OptCheck('cut_attack_surface', 'kspp', 'DEVMEM', 'is not set') # refers to LOCKDOWN
# 'self_protection', 'defconfig'
checklist.append(OptCheck('self_protection', 'defconfig', 'BUG', 'y'))
checklist.append(OptCheck('self_protection', 'defconfig', 'SLUB_DEBUG', 'y'))
checklist.append(OptCheck('self_protection', 'defconfig', 'GCC_PLUGINS', 'y'))
checklist.append(OR(OptCheck('self_protection', 'defconfig', 'STACKPROTECTOR_STRONG', 'y'), \
OptCheck('self_protection', 'defconfig', 'CC_STACKPROTECTOR_STRONG', 'y')))
checklist.append(OR(OptCheck('self_protection', 'defconfig', 'STRICT_KERNEL_RWX', 'y'), \
OptCheck('self_protection', 'defconfig', 'DEBUG_RODATA', 'y'))) # before v4.11
checklist.append(OR(OptCheck('self_protection', 'defconfig', 'STRICT_MODULE_RWX', 'y'), \
OptCheck('self_protection', 'defconfig', 'DEBUG_SET_MODULE_RONX', 'y'), \
modules_not_set)) # DEBUG_SET_MODULE_RONX was before v4.11
checklist.append(OR(OptCheck('self_protection', 'defconfig', 'REFCOUNT_FULL', 'y'), \
VerCheck((5, 5)))) # REFCOUNT_FULL is enabled by default since v5.5
iommu_support_is_set = OptCheck('self_protection', 'defconfig', 'IOMMU_SUPPORT', 'y') # is needed for mitigating DMA attacks
checklist.append(iommu_support_is_set)
l += [OptCheck('self_protection', 'defconfig', 'BUG', 'y')]
l += [OptCheck('self_protection', 'defconfig', 'SLUB_DEBUG', 'y')]
l += [OptCheck('self_protection', 'defconfig', 'GCC_PLUGINS', 'y')]
l += [OR(OptCheck('self_protection', 'defconfig', 'STACKPROTECTOR_STRONG', 'y'),
OptCheck('self_protection', 'defconfig', 'CC_STACKPROTECTOR_STRONG', 'y'))]
l += [OR(OptCheck('self_protection', 'defconfig', 'STRICT_KERNEL_RWX', 'y'),
OptCheck('self_protection', 'defconfig', 'DEBUG_RODATA', 'y'))] # before v4.11
l += [OR(OptCheck('self_protection', 'defconfig', 'STRICT_MODULE_RWX', 'y'),
OptCheck('self_protection', 'defconfig', 'DEBUG_SET_MODULE_RONX', 'y'),
modules_not_set)] # DEBUG_SET_MODULE_RONX was before v4.11
l += [OR(OptCheck('self_protection', 'defconfig', 'REFCOUNT_FULL', 'y'),
VerCheck((5, 5)))] # REFCOUNT_FULL is enabled by default since v5.5
iommu_support_is_set = OptCheck('self_protection', 'defconfig', 'IOMMU_SUPPORT', 'y')
l += [iommu_support_is_set] # is needed for mitigating DMA attacks
if arch in ('X86_64', 'X86_32'):
checklist.append(OptCheck('self_protection', 'defconfig', 'MICROCODE', 'y')) # is needed for mitigating CPU bugs
checklist.append(OptCheck('self_protection', 'defconfig', 'RETPOLINE', 'y'))
checklist.append(OptCheck('self_protection', 'defconfig', 'X86_SMAP', 'y'))
checklist.append(OptCheck('self_protection', 'defconfig', 'SYN_COOKIES', 'y')) # another reason?
checklist.append(OR(OptCheck('self_protection', 'defconfig', 'X86_UMIP', 'y'), \
OptCheck('self_protection', 'defconfig', 'X86_INTEL_UMIP', 'y')))
l += [OptCheck('self_protection', 'defconfig', 'MICROCODE', 'y')] # is needed for mitigating CPU bugs
l += [OptCheck('self_protection', 'defconfig', 'RETPOLINE', 'y')]
l += [OptCheck('self_protection', 'defconfig', 'X86_SMAP', 'y')]
l += [OptCheck('self_protection', 'defconfig', 'SYN_COOKIES', 'y')] # another reason?
l += [OR(OptCheck('self_protection', 'defconfig', 'X86_UMIP', 'y'),
OptCheck('self_protection', 'defconfig', 'X86_INTEL_UMIP', 'y'))]
if arch == 'X86_64':
checklist.append(OptCheck('self_protection', 'defconfig', 'PAGE_TABLE_ISOLATION', 'y'))
checklist.append(OptCheck('self_protection', 'defconfig', 'RANDOMIZE_MEMORY', 'y'))
checklist.append(AND(OptCheck('self_protection', 'defconfig', 'INTEL_IOMMU', 'y'), \
iommu_support_is_set))
checklist.append(AND(OptCheck('self_protection', 'defconfig', 'AMD_IOMMU', 'y'), \
iommu_support_is_set))
l += [OptCheck('self_protection', 'defconfig', 'PAGE_TABLE_ISOLATION', 'y')]
l += [OptCheck('self_protection', 'defconfig', 'RANDOMIZE_MEMORY', 'y')]
l += [AND(OptCheck('self_protection', 'defconfig', 'INTEL_IOMMU', 'y'),
iommu_support_is_set)]
l += [AND(OptCheck('self_protection', 'defconfig', 'AMD_IOMMU', 'y'),
iommu_support_is_set)]
if arch == 'ARM64':
checklist.append(OptCheck('self_protection', 'defconfig', 'UNMAP_KERNEL_AT_EL0', 'y'))
checklist.append(OptCheck('self_protection', 'defconfig', 'HARDEN_EL2_VECTORS', 'y'))
checklist.append(OptCheck('self_protection', 'defconfig', 'RODATA_FULL_DEFAULT_ENABLED', 'y'))
checklist.append(OptCheck('self_protection', 'defconfig', 'ARM64_PTR_AUTH', 'y'))
l += [OptCheck('self_protection', 'defconfig', 'UNMAP_KERNEL_AT_EL0', 'y')]
l += [OptCheck('self_protection', 'defconfig', 'HARDEN_EL2_VECTORS', 'y')]
l += [OptCheck('self_protection', 'defconfig', 'RODATA_FULL_DEFAULT_ENABLED', 'y')]
l += [OptCheck('self_protection', 'defconfig', 'ARM64_PTR_AUTH', 'y')]
if arch in ('X86_64', 'ARM64'):
checklist.append(OptCheck('self_protection', 'defconfig', 'VMAP_STACK', 'y'))
l += [OptCheck('self_protection', 'defconfig', 'VMAP_STACK', 'y')]
if arch in ('X86_64', 'ARM64', 'X86_32'):
checklist.append(OptCheck('self_protection', 'defconfig', 'RANDOMIZE_BASE', 'y'))
checklist.append(OptCheck('self_protection', 'defconfig', 'THREAD_INFO_IN_TASK', 'y'))
l += [OptCheck('self_protection', 'defconfig', 'RANDOMIZE_BASE', 'y')]
l += [OptCheck('self_protection', 'defconfig', 'THREAD_INFO_IN_TASK', 'y')]
if arch == 'ARM':
checklist.append(OptCheck('self_protection', 'defconfig', 'CPU_SW_DOMAIN_PAN', 'y'))
checklist.append(OptCheck('self_protection', 'defconfig', 'STACKPROTECTOR_PER_TASK', 'y'))
l += [OptCheck('self_protection', 'defconfig', 'CPU_SW_DOMAIN_PAN', 'y')]
l += [OptCheck('self_protection', 'defconfig', 'STACKPROTECTOR_PER_TASK', 'y')]
if arch in ('ARM64', 'ARM'):
checklist.append(OptCheck('self_protection', 'defconfig', 'HARDEN_BRANCH_PREDICTOR', 'y'))
l += [OptCheck('self_protection', 'defconfig', 'HARDEN_BRANCH_PREDICTOR', 'y')]
# 'self_protection', 'kspp'
checklist.append(OptCheck('self_protection', 'kspp', 'BUG_ON_DATA_CORRUPTION', 'y'))
checklist.append(OptCheck('self_protection', 'kspp', 'DEBUG_WX', 'y'))
checklist.append(OptCheck('self_protection', 'kspp', 'SCHED_STACK_END_CHECK', 'y'))
checklist.append(OptCheck('self_protection', 'kspp', 'SLAB_FREELIST_HARDENED', 'y'))
checklist.append(OptCheck('self_protection', 'kspp', 'SLAB_FREELIST_RANDOM', 'y'))
checklist.append(OptCheck('self_protection', 'kspp', 'SHUFFLE_PAGE_ALLOCATOR', 'y'))
checklist.append(OptCheck('self_protection', 'kspp', 'FORTIFY_SOURCE', 'y'))
checklist.append(OptCheck('self_protection', 'kspp', 'DEBUG_LIST', 'y'))
checklist.append(OptCheck('self_protection', 'kspp', 'DEBUG_SG', 'y'))
checklist.append(OptCheck('self_protection', 'kspp', 'DEBUG_CREDENTIALS', 'y'))
checklist.append(OptCheck('self_protection', 'kspp', 'DEBUG_NOTIFIERS', 'y'))
checklist.append(OptCheck('self_protection', 'kspp', 'INIT_ON_ALLOC_DEFAULT_ON', 'y'))
checklist.append(OptCheck('self_protection', 'kspp', 'GCC_PLUGIN_LATENT_ENTROPY', 'y'))
l += [OptCheck('self_protection', 'kspp', 'BUG_ON_DATA_CORRUPTION', 'y')]
l += [OptCheck('self_protection', 'kspp', 'DEBUG_WX', 'y')]
l += [OptCheck('self_protection', 'kspp', 'SCHED_STACK_END_CHECK', 'y')]
l += [OptCheck('self_protection', 'kspp', 'SLAB_FREELIST_HARDENED', 'y')]
l += [OptCheck('self_protection', 'kspp', 'SLAB_FREELIST_RANDOM', 'y')]
l += [OptCheck('self_protection', 'kspp', 'SHUFFLE_PAGE_ALLOCATOR', 'y')]
l += [OptCheck('self_protection', 'kspp', 'FORTIFY_SOURCE', 'y')]
l += [OptCheck('self_protection', 'kspp', 'DEBUG_LIST', 'y')]
l += [OptCheck('self_protection', 'kspp', 'DEBUG_SG', 'y')]
l += [OptCheck('self_protection', 'kspp', 'DEBUG_CREDENTIALS', 'y')]
l += [OptCheck('self_protection', 'kspp', 'DEBUG_NOTIFIERS', 'y')]
l += [OptCheck('self_protection', 'kspp', 'INIT_ON_ALLOC_DEFAULT_ON', 'y')]
l += [OptCheck('self_protection', 'kspp', 'GCC_PLUGIN_LATENT_ENTROPY', 'y')]
randstruct_is_set = OptCheck('self_protection', 'kspp', 'GCC_PLUGIN_RANDSTRUCT', 'y')
checklist.append(randstruct_is_set)
l += [randstruct_is_set]
hardened_usercopy_is_set = OptCheck('self_protection', 'kspp', 'HARDENED_USERCOPY', 'y')
checklist.append(hardened_usercopy_is_set)
checklist.append(AND(OptCheck('self_protection', 'kspp', 'HARDENED_USERCOPY_FALLBACK', 'is not set'), \
hardened_usercopy_is_set))
checklist.append(OR(OptCheck('self_protection', 'kspp', 'MODULE_SIG', 'y'), \
modules_not_set))
checklist.append(OR(OptCheck('self_protection', 'kspp', 'MODULE_SIG_ALL', 'y'), \
modules_not_set))
checklist.append(OR(OptCheck('self_protection', 'kspp', 'MODULE_SIG_SHA512', 'y'), \
modules_not_set))
checklist.append(OR(OptCheck('self_protection', 'kspp', 'MODULE_SIG_FORCE', 'y'), \
modules_not_set)) # refers to LOCKDOWN
checklist.append(OR(OptCheck('self_protection', 'kspp', 'INIT_STACK_ALL', 'y'), \
OptCheck('self_protection', 'kspp', 'GCC_PLUGIN_STRUCTLEAK_BYREF_ALL', 'y')))
checklist.append(OR(OptCheck('self_protection', 'kspp', 'INIT_ON_FREE_DEFAULT_ON', 'y'), \
OptCheck('self_protection', 'kspp', 'PAGE_POISONING', 'y'))) # before v5.3
l += [hardened_usercopy_is_set]
l += [AND(OptCheck('self_protection', 'kspp', 'HARDENED_USERCOPY_FALLBACK', 'is not set'),
hardened_usercopy_is_set)]
l += [OR(OptCheck('self_protection', 'kspp', 'MODULE_SIG', 'y'),
modules_not_set)]
l += [OR(OptCheck('self_protection', 'kspp', 'MODULE_SIG_ALL', 'y'),
modules_not_set)]
l += [OR(OptCheck('self_protection', 'kspp', 'MODULE_SIG_SHA512', 'y'),
modules_not_set)]
l += [OR(OptCheck('self_protection', 'kspp', 'MODULE_SIG_FORCE', 'y'),
modules_not_set)] # refers to LOCKDOWN
l += [OR(OptCheck('self_protection', 'kspp', 'INIT_STACK_ALL', 'y'),
OptCheck('self_protection', 'kspp', 'GCC_PLUGIN_STRUCTLEAK_BYREF_ALL', 'y'))]
l += [OR(OptCheck('self_protection', 'kspp', 'INIT_ON_FREE_DEFAULT_ON', 'y'),
OptCheck('self_protection', 'kspp', 'PAGE_POISONING', 'y'))] # before v5.3
if arch in ('X86_64', 'ARM64', 'X86_32'):
stackleak_is_set = OptCheck('self_protection', 'kspp', 'GCC_PLUGIN_STACKLEAK', 'y')
checklist.append(stackleak_is_set)
l += [stackleak_is_set]
if arch in ('X86_64', 'X86_32'):
checklist.append(OptCheck('self_protection', 'kspp', 'DEFAULT_MMAP_MIN_ADDR', '65536'))
l += [OptCheck('self_protection', 'kspp', 'DEFAULT_MMAP_MIN_ADDR', '65536')]
if arch == 'X86_32':
checklist.append(OptCheck('self_protection', 'kspp', 'PAGE_TABLE_ISOLATION', 'y'))
checklist.append(OptCheck('self_protection', 'kspp', 'HIGHMEM64G', 'y'))
checklist.append(OptCheck('self_protection', 'kspp', 'X86_PAE', 'y'))
l += [OptCheck('self_protection', 'kspp', 'PAGE_TABLE_ISOLATION', 'y')]
l += [OptCheck('self_protection', 'kspp', 'HIGHMEM64G', 'y')]
l += [OptCheck('self_protection', 'kspp', 'X86_PAE', 'y')]
if arch == 'ARM64':
checklist.append(OptCheck('self_protection', 'kspp', 'ARM64_SW_TTBR0_PAN', 'y'))
l += [OptCheck('self_protection', 'kspp', 'ARM64_SW_TTBR0_PAN', 'y')]
if arch in ('ARM64', 'ARM'):
checklist.append(OptCheck('self_protection', 'kspp', 'SYN_COOKIES', 'y')) # another reason?
checklist.append(OptCheck('self_protection', 'kspp', 'DEFAULT_MMAP_MIN_ADDR', '32768'))
l += [OptCheck('self_protection', 'kspp', 'SYN_COOKIES', 'y')] # another reason?
l += [OptCheck('self_protection', 'kspp', 'DEFAULT_MMAP_MIN_ADDR', '32768')]
# 'self_protection', 'clipos'
checklist.append(OptCheck('self_protection', 'clipos', 'SECURITY_DMESG_RESTRICT', 'y'))
checklist.append(OptCheck('self_protection', 'clipos', 'DEBUG_VIRTUAL', 'y'))
checklist.append(OptCheck('self_protection', 'clipos', 'STATIC_USERMODEHELPER', 'y')) # needs userspace support
checklist.append(OptCheck('self_protection', 'clipos', 'SLAB_MERGE_DEFAULT', 'is not set')) # slab_nomerge
checklist.append(OptCheck('self_protection', 'clipos', 'RANDOM_TRUST_BOOTLOADER', 'is not set'))
checklist.append(OptCheck('self_protection', 'clipos', 'RANDOM_TRUST_CPU', 'is not set'))
checklist.append(AND(OptCheck('self_protection', 'clipos', 'GCC_PLUGIN_RANDSTRUCT_PERFORMANCE', 'is not set'), \
randstruct_is_set))
l += [OptCheck('self_protection', 'clipos', 'SECURITY_DMESG_RESTRICT', 'y')]
l += [OptCheck('self_protection', 'clipos', 'DEBUG_VIRTUAL', 'y')]
l += [OptCheck('self_protection', 'clipos', 'STATIC_USERMODEHELPER', 'y')] # needs userspace support
l += [OptCheck('self_protection', 'clipos', 'SLAB_MERGE_DEFAULT', 'is not set')] # slab_nomerge
l += [OptCheck('self_protection', 'clipos', 'RANDOM_TRUST_BOOTLOADER', 'is not set')]
l += [OptCheck('self_protection', 'clipos', 'RANDOM_TRUST_CPU', 'is not set')]
l += [AND(OptCheck('self_protection', 'clipos', 'GCC_PLUGIN_RANDSTRUCT_PERFORMANCE', 'is not set'),
randstruct_is_set)]
if arch in ('X86_64', 'ARM64', 'X86_32'):
checklist.append(AND(OptCheck('self_protection', 'clipos', 'STACKLEAK_METRICS', 'is not set'), \
stackleak_is_set))
checklist.append(AND(OptCheck('self_protection', 'clipos', 'STACKLEAK_RUNTIME_DISABLE', 'is not set'), \
stackleak_is_set))
l += [AND(OptCheck('self_protection', 'clipos', 'STACKLEAK_METRICS', 'is not set'),
stackleak_is_set)]
l += [AND(OptCheck('self_protection', 'clipos', 'STACKLEAK_RUNTIME_DISABLE', 'is not set'),
stackleak_is_set)]
if arch in ('X86_64', 'X86_32'):
checklist.append(AND(OptCheck('self_protection', 'clipos', 'INTEL_IOMMU_SVM', 'y'), \
iommu_support_is_set))
checklist.append(AND(OptCheck('self_protection', 'clipos', 'INTEL_IOMMU_DEFAULT_ON', 'y'), \
iommu_support_is_set))
l += [AND(OptCheck('self_protection', 'clipos', 'INTEL_IOMMU_SVM', 'y'),
iommu_support_is_set)]
l += [AND(OptCheck('self_protection', 'clipos', 'INTEL_IOMMU_DEFAULT_ON', 'y'),
iommu_support_is_set)]
if arch == 'X86_32':
checklist.append(AND(OptCheck('self_protection', 'clipos', 'INTEL_IOMMU', 'y'), \
iommu_support_is_set))
l += [AND(OptCheck('self_protection', 'clipos', 'INTEL_IOMMU', 'y'),
iommu_support_is_set)]
# 'self_protection', 'my'
checklist.append(OptCheck('self_protection', 'my', 'SLUB_DEBUG_ON', 'y'))
checklist.append(OptCheck('self_protection', 'my', 'RESET_ATTACK_MITIGATION', 'y')) # needs userspace support (systemd)
l += [OptCheck('self_protection', 'my', 'SLUB_DEBUG_ON', 'y')]
l += [OptCheck('self_protection', 'my', 'RESET_ATTACK_MITIGATION', 'y')] # needs userspace support (systemd)
if arch == 'X86_64':
checklist.append(AND(OptCheck('self_protection', 'my', 'AMD_IOMMU_V2', 'y'), \
iommu_support_is_set))
l += [AND(OptCheck('self_protection', 'my', 'AMD_IOMMU_V2', 'y'),
iommu_support_is_set)]
# 'security_policy'
if arch in ('X86_64', 'ARM64', 'X86_32'):
checklist.append(OptCheck('security_policy', 'defconfig', 'SECURITY', 'y')) # and choose your favourite LSM
l += [OptCheck('security_policy', 'defconfig', 'SECURITY', 'y')] # and choose your favourite LSM
if arch == 'ARM':
checklist.append(OptCheck('security_policy', 'kspp', 'SECURITY', 'y')) # and choose your favourite LSM
checklist.append(OptCheck('security_policy', 'kspp', 'SECURITY_YAMA', 'y'))
checklist.append(OR(OptCheck('security_policy', 'my', 'SECURITY_WRITABLE_HOOKS', 'is not set'), \
OptCheck('security_policy', 'kspp', 'SECURITY_SELINUX_DISABLE', 'is not set')))
checklist.append(OptCheck('security_policy', 'clipos', 'SECURITY_LOCKDOWN_LSM', 'y'))
checklist.append(OptCheck('security_policy', 'clipos', 'SECURITY_LOCKDOWN_LSM_EARLY', 'y'))
checklist.append(OptCheck('security_policy', 'clipos', 'LOCK_DOWN_KERNEL_FORCE_CONFIDENTIALITY', 'y'))
checklist.append(OptCheck('security_policy', 'my', 'SECURITY_SAFESETID', 'y'))
loadpin_is_set = OptCheck('security_policy', 'my', 'SECURITY_LOADPIN', 'y') # needs userspace support
checklist.append(loadpin_is_set)
checklist.append(AND(OptCheck('security_policy', 'my', 'SECURITY_LOADPIN_ENFORCE', 'y'), \
loadpin_is_set))
l += [OptCheck('security_policy', 'kspp', 'SECURITY', 'y')] # and choose your favourite LSM
l += [OptCheck('security_policy', 'kspp', 'SECURITY_YAMA', 'y')]
l += [OR(OptCheck('security_policy', 'my', 'SECURITY_WRITABLE_HOOKS', 'is not set'),
OptCheck('security_policy', 'kspp', 'SECURITY_SELINUX_DISABLE', 'is not set'))]
l += [OptCheck('security_policy', 'clipos', 'SECURITY_LOCKDOWN_LSM', 'y')]
l += [OptCheck('security_policy', 'clipos', 'SECURITY_LOCKDOWN_LSM_EARLY', 'y')]
l += [OptCheck('security_policy', 'clipos', 'LOCK_DOWN_KERNEL_FORCE_CONFIDENTIALITY', 'y')]
l += [OptCheck('security_policy', 'my', 'SECURITY_SAFESETID', 'y')]
loadpin_is_set = OptCheck('security_policy', 'my', 'SECURITY_LOADPIN', 'y')
l += [loadpin_is_set] # needs userspace support
l += [AND(OptCheck('security_policy', 'my', 'SECURITY_LOADPIN_ENFORCE', 'y'),
loadpin_is_set)]
# 'cut_attack_surface', 'defconfig'
checklist.append(OptCheck('cut_attack_surface', 'defconfig', 'SECCOMP', 'y'))
checklist.append(OptCheck('cut_attack_surface', 'defconfig', 'SECCOMP_FILTER', 'y'))
l += [OptCheck('cut_attack_surface', 'defconfig', 'SECCOMP', 'y')]
l += [OptCheck('cut_attack_surface', 'defconfig', 'SECCOMP_FILTER', 'y')]
if arch in ('X86_64', 'ARM64', 'X86_32'):
checklist.append(OR(OptCheck('cut_attack_surface', 'defconfig', 'STRICT_DEVMEM', 'y'), \
devmem_not_set)) # refers to LOCKDOWN
l += [OR(OptCheck('cut_attack_surface', 'defconfig', 'STRICT_DEVMEM', 'y'),
devmem_not_set)] # refers to LOCKDOWN
# 'cut_attack_surface', 'kspp'
checklist.append(OptCheck('cut_attack_surface', 'kspp', 'ACPI_CUSTOM_METHOD', 'is not set')) # refers to LOCKDOWN
checklist.append(OptCheck('cut_attack_surface', 'kspp', 'COMPAT_BRK', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'kspp', 'DEVKMEM', 'is not set')) # refers to LOCKDOWN
checklist.append(OptCheck('cut_attack_surface', 'kspp', 'COMPAT_VDSO', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'kspp', 'BINFMT_MISC', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'kspp', 'INET_DIAG', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'kspp', 'KEXEC', 'is not set')) # refers to LOCKDOWN
checklist.append(OptCheck('cut_attack_surface', 'kspp', 'PROC_KCORE', 'is not set')) # refers to LOCKDOWN
checklist.append(OptCheck('cut_attack_surface', 'kspp', 'LEGACY_PTYS', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'kspp', 'HIBERNATION', 'is not set')) # refers to LOCKDOWN
checklist.append(OptCheck('cut_attack_surface', 'kspp', 'IA32_EMULATION', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'kspp', 'X86_X32', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'kspp', 'MODIFY_LDT_SYSCALL', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'kspp', 'OABI_COMPAT', 'is not set'))
checklist.append(modules_not_set)
checklist.append(devmem_not_set)
checklist.append(OR(OptCheck('cut_attack_surface', 'kspp', 'IO_STRICT_DEVMEM', 'y'), \
devmem_not_set)) # refers to LOCKDOWN
l += [OptCheck('cut_attack_surface', 'kspp', 'ACPI_CUSTOM_METHOD', 'is not set')] # refers to LOCKDOWN
l += [OptCheck('cut_attack_surface', 'kspp', 'COMPAT_BRK', 'is not set')]
l += [OptCheck('cut_attack_surface', 'kspp', 'DEVKMEM', 'is not set')] # refers to LOCKDOWN
l += [OptCheck('cut_attack_surface', 'kspp', 'COMPAT_VDSO', 'is not set')]
l += [OptCheck('cut_attack_surface', 'kspp', 'BINFMT_MISC', 'is not set')]
l += [OptCheck('cut_attack_surface', 'kspp', 'INET_DIAG', 'is not set')]
l += [OptCheck('cut_attack_surface', 'kspp', 'KEXEC', 'is not set')] # refers to LOCKDOWN
l += [OptCheck('cut_attack_surface', 'kspp', 'PROC_KCORE', 'is not set')] # refers to LOCKDOWN
l += [OptCheck('cut_attack_surface', 'kspp', 'LEGACY_PTYS', 'is not set')]
l += [OptCheck('cut_attack_surface', 'kspp', 'HIBERNATION', 'is not set')] # refers to LOCKDOWN
l += [OptCheck('cut_attack_surface', 'kspp', 'IA32_EMULATION', 'is not set')]
l += [OptCheck('cut_attack_surface', 'kspp', 'X86_X32', 'is not set')]
l += [OptCheck('cut_attack_surface', 'kspp', 'MODIFY_LDT_SYSCALL', 'is not set')]
l += [OptCheck('cut_attack_surface', 'kspp', 'OABI_COMPAT', 'is not set')]
l += [modules_not_set]
l += [devmem_not_set]
l += [OR(OptCheck('cut_attack_surface', 'kspp', 'IO_STRICT_DEVMEM', 'y'),
devmem_not_set)] # refers to LOCKDOWN
if arch == 'ARM':
checklist.append(OR(OptCheck('cut_attack_surface', 'kspp', 'STRICT_DEVMEM', 'y'), \
devmem_not_set)) # refers to LOCKDOWN
l += [OR(OptCheck('cut_attack_surface', 'kspp', 'STRICT_DEVMEM', 'y'),
devmem_not_set)] # refers to LOCKDOWN
if arch == 'X86_64':
checklist.append(OptCheck('cut_attack_surface', 'kspp', 'LEGACY_VSYSCALL_NONE', 'y')) # 'vsyscall=none'
l += [OptCheck('cut_attack_surface', 'kspp', 'LEGACY_VSYSCALL_NONE', 'y')] # 'vsyscall=none'
# 'cut_attack_surface', 'grsecurity'
checklist.append(OptCheck('cut_attack_surface', 'grsecurity', 'X86_PTDUMP', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'grsecurity', 'ZSMALLOC_STAT', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'grsecurity', 'PAGE_OWNER', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'grsecurity', 'DEBUG_KMEMLEAK', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'grsecurity', 'BINFMT_AOUT', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'grsecurity', 'KPROBES', 'is not set')) # refers to LOCKDOWN
checklist.append(OptCheck('cut_attack_surface', 'grsecurity', 'UPROBES', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'grsecurity', 'GENERIC_TRACER', 'is not set')) # refers to LOCKDOWN
checklist.append(OptCheck('cut_attack_surface', 'grsecurity', 'PROC_VMCORE', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'grsecurity', 'PROC_PAGE_MONITOR', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'grsecurity', 'USELIB', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'grsecurity', 'CHECKPOINT_RESTORE', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'grsecurity', 'USERFAULTFD', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'grsecurity', 'HWPOISON_INJECT', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'grsecurity', 'MEM_SOFT_DIRTY', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'grsecurity', 'DEVPORT', 'is not set')) # refers to LOCKDOWN
checklist.append(OptCheck('cut_attack_surface', 'grsecurity', 'DEBUG_FS', 'is not set')) # refers to LOCKDOWN
checklist.append(OptCheck('cut_attack_surface', 'grsecurity', 'NOTIFIER_ERROR_INJECTION','is not set'))
l += [OptCheck('cut_attack_surface', 'grsecurity', 'X86_PTDUMP', 'is not set')]
l += [OptCheck('cut_attack_surface', 'grsecurity', 'ZSMALLOC_STAT', 'is not set')]
l += [OptCheck('cut_attack_surface', 'grsecurity', 'PAGE_OWNER', 'is not set')]
l += [OptCheck('cut_attack_surface', 'grsecurity', 'DEBUG_KMEMLEAK', 'is not set')]
l += [OptCheck('cut_attack_surface', 'grsecurity', 'BINFMT_AOUT', 'is not set')]
l += [OptCheck('cut_attack_surface', 'grsecurity', 'KPROBES', 'is not set')] # refers to LOCKDOWN
l += [OptCheck('cut_attack_surface', 'grsecurity', 'UPROBES', 'is not set')]
l += [OptCheck('cut_attack_surface', 'grsecurity', 'GENERIC_TRACER', 'is not set')] # refers to LOCKDOWN
l += [OptCheck('cut_attack_surface', 'grsecurity', 'PROC_VMCORE', 'is not set')]
l += [OptCheck('cut_attack_surface', 'grsecurity', 'PROC_PAGE_MONITOR', 'is not set')]
l += [OptCheck('cut_attack_surface', 'grsecurity', 'USELIB', 'is not set')]
l += [OptCheck('cut_attack_surface', 'grsecurity', 'CHECKPOINT_RESTORE', 'is not set')]
l += [OptCheck('cut_attack_surface', 'grsecurity', 'USERFAULTFD', 'is not set')]
l += [OptCheck('cut_attack_surface', 'grsecurity', 'HWPOISON_INJECT', 'is not set')]
l += [OptCheck('cut_attack_surface', 'grsecurity', 'MEM_SOFT_DIRTY', 'is not set')]
l += [OptCheck('cut_attack_surface', 'grsecurity', 'DEVPORT', 'is not set')] # refers to LOCKDOWN
l += [OptCheck('cut_attack_surface', 'grsecurity', 'DEBUG_FS', 'is not set')] # refers to LOCKDOWN
l += [OptCheck('cut_attack_surface', 'grsecurity', 'NOTIFIER_ERROR_INJECTION','is not set')]
# 'cut_attack_surface', 'maintainer'
checklist.append(OptCheck('cut_attack_surface', 'maintainer', 'DRM_LEGACY', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'maintainer', 'FB', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'maintainer', 'VT', 'is not set'))
l += [OptCheck('cut_attack_surface', 'maintainer', 'DRM_LEGACY', 'is not set')]
l += [OptCheck('cut_attack_surface', 'maintainer', 'FB', 'is not set')]
l += [OptCheck('cut_attack_surface', 'maintainer', 'VT', 'is not set')]
# 'cut_attack_surface', 'lockdown'
checklist.append(OptCheck('cut_attack_surface', 'lockdown', 'ACPI_TABLE_UPGRADE', 'is not set')) # refers to LOCKDOWN
checklist.append(OptCheck('cut_attack_surface', 'lockdown', 'X86_IOPL_IOPERM', 'is not set')) # refers to LOCKDOWN
checklist.append(OptCheck('cut_attack_surface', 'lockdown', 'EFI_TEST', 'is not set')) # refers to LOCKDOWN
checklist.append(OptCheck('cut_attack_surface', 'lockdown', 'BPF_SYSCALL', 'is not set')) # refers to LOCKDOWN
checklist.append(OptCheck('cut_attack_surface', 'lockdown', 'MMIOTRACE_TEST', 'is not set')) # refers to LOCKDOWN
l += [OptCheck('cut_attack_surface', 'lockdown', 'ACPI_TABLE_UPGRADE', 'is not set')] # refers to LOCKDOWN
l += [OptCheck('cut_attack_surface', 'lockdown', 'X86_IOPL_IOPERM', 'is not set')] # refers to LOCKDOWN
l += [OptCheck('cut_attack_surface', 'lockdown', 'EFI_TEST', 'is not set')] # refers to LOCKDOWN
l += [OptCheck('cut_attack_surface', 'lockdown', 'BPF_SYSCALL', 'is not set')] # refers to LOCKDOWN
l += [OptCheck('cut_attack_surface', 'lockdown', 'MMIOTRACE_TEST', 'is not set')] # refers to LOCKDOWN
# 'cut_attack_surface', 'clipos'
checklist.append(OptCheck('cut_attack_surface', 'clipos', 'STAGING', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'clipos', 'KSM', 'is not set')) # to prevent FLUSH+RELOAD attack
# checklist.append(OptCheck('cut_attack_surface', 'clipos', 'IKCONFIG', 'is not set')) # no, this info is needed for this check :)
checklist.append(OptCheck('cut_attack_surface', 'clipos', 'KALLSYMS', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'clipos', 'X86_VSYSCALL_EMULATION', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'clipos', 'MAGIC_SYSRQ', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'clipos', 'KEXEC_FILE', 'is not set')) # refers to LOCKDOWN (permissive)
checklist.append(OptCheck('cut_attack_surface', 'clipos', 'USER_NS', 'is not set')) # user.max_user_namespaces=0
checklist.append(OptCheck('cut_attack_surface', 'clipos', 'X86_MSR', 'is not set')) # refers to LOCKDOWN
checklist.append(OptCheck('cut_attack_surface', 'clipos', 'X86_CPUID', 'is not set'))
checklist.append(AND(OptCheck('cut_attack_surface', 'clipos', 'LDISC_AUTOLOAD', 'is not set'), \
PresenceCheck('LDISC_AUTOLOAD')))
l += [OptCheck('cut_attack_surface', 'clipos', 'STAGING', 'is not set')]
l += [OptCheck('cut_attack_surface', 'clipos', 'KSM', 'is not set')] # to prevent FLUSH+RELOAD attack
# l += [OptCheck('cut_attack_surface', 'clipos', 'IKCONFIG', 'is not set')] # no, IKCONFIG is needed for this check :)
l += [OptCheck('cut_attack_surface', 'clipos', 'KALLSYMS', 'is not set')]
l += [OptCheck('cut_attack_surface', 'clipos', 'X86_VSYSCALL_EMULATION', 'is not set')]
l += [OptCheck('cut_attack_surface', 'clipos', 'MAGIC_SYSRQ', 'is not set')]
l += [OptCheck('cut_attack_surface', 'clipos', 'KEXEC_FILE', 'is not set')] # refers to LOCKDOWN (permissive)
l += [OptCheck('cut_attack_surface', 'clipos', 'USER_NS', 'is not set')] # user.max_user_namespaces=0
l += [OptCheck('cut_attack_surface', 'clipos', 'X86_MSR', 'is not set')] # refers to LOCKDOWN
l += [OptCheck('cut_attack_surface', 'clipos', 'X86_CPUID', 'is not set')]
l += [AND(OptCheck('cut_attack_surface', 'clipos', 'LDISC_AUTOLOAD', 'is not set'),
PresenceCheck('LDISC_AUTOLOAD'))]
if arch in ('X86_64', 'X86_32'):
checklist.append(OptCheck('cut_attack_surface', 'clipos', 'X86_INTEL_TSX_MODE_OFF', 'y')) # tsx=off
l += [OptCheck('cut_attack_surface', 'clipos', 'X86_INTEL_TSX_MODE_OFF', 'y')] # tsx=off
# 'cut_attack_surface', 'grapheneos'
checklist.append(OptCheck('cut_attack_surface', 'grapheneos', 'AIO', 'is not set'))
l += [OptCheck('cut_attack_surface', 'grapheneos', 'AIO', 'is not set')]
# 'cut_attack_surface', 'my'
checklist.append(OptCheck('cut_attack_surface', 'my', 'MMIOTRACE', 'is not set')) # refers to LOCKDOWN (permissive)
checklist.append(OptCheck('cut_attack_surface', 'my', 'LIVEPATCH', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'my', 'IP_DCCP', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'my', 'IP_SCTP', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'my', 'FTRACE', 'is not set')) # refers to LOCKDOWN
checklist.append(OptCheck('cut_attack_surface', 'my', 'BPF_JIT', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'my', 'VIDEO_VIVID', 'is not set'))
checklist.append(OptCheck('cut_attack_surface', 'my', 'INPUT_EVBUG', 'is not set')) # Can be used as a keylogger
l += [OptCheck('cut_attack_surface', 'my', 'MMIOTRACE', 'is not set')] # refers to LOCKDOWN (permissive)
l += [OptCheck('cut_attack_surface', 'my', 'LIVEPATCH', 'is not set')]
l += [OptCheck('cut_attack_surface', 'my', 'IP_DCCP', 'is not set')]
l += [OptCheck('cut_attack_surface', 'my', 'IP_SCTP', 'is not set')]
l += [OptCheck('cut_attack_surface', 'my', 'FTRACE', 'is not set')] # refers to LOCKDOWN
l += [OptCheck('cut_attack_surface', 'my', 'BPF_JIT', 'is not set')]
l += [OptCheck('cut_attack_surface', 'my', 'VIDEO_VIVID', 'is not set')]
l += [OptCheck('cut_attack_surface', 'my', 'INPUT_EVBUG', 'is not set')] # Can be used as a keylogger
# 'userspace_hardening'
checklist.append(OptCheck('userspace_hardening', 'defconfig', 'INTEGRITY', 'y'))
l += [OptCheck('userspace_hardening', 'defconfig', 'INTEGRITY', 'y')]
if arch in ('ARM', 'X86_32'):
checklist.append(OptCheck('userspace_hardening', 'defconfig', 'VMSPLIT_3G', 'y'))
l += [OptCheck('userspace_hardening', 'defconfig', 'VMSPLIT_3G', 'y')]
if arch in ('X86_64', 'ARM64'):
checklist.append(OptCheck('userspace_hardening', 'clipos', 'ARCH_MMAP_RND_BITS', '32'))
l += [OptCheck('userspace_hardening', 'clipos', 'ARCH_MMAP_RND_BITS', '32')]
if arch in ('X86_32', 'ARM'):
checklist.append(OptCheck('userspace_hardening', 'my', 'ARCH_MMAP_RND_BITS', '16'))
l += [OptCheck('userspace_hardening', 'my', 'ARCH_MMAP_RND_BITS', '16')]
# checklist.append(OptCheck('feature_test', 'my', 'LKDTM', 'm')) # only for debugging!
# l += [OptCheck('feature_test', 'my', 'LKDTM', 'm')] # only for debugging!
def print_checklist(checklist, with_results):
......
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