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K
kernel-hardening-checker
Commit 53b9cee7 by Alexander Popov
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Bring more order to the offsets (style fix)

parent dd40ca5c
Showing with 41 additions and 41 deletions
kconfig-hardened-check.py
...@@ -169,8 +169,8 @@ def detect_arch(fname): ...@@ -169,8 +169,8 @@ def detect_arch(fname):
def construct_checklist(checklist, arch): def construct_checklist(checklist, arch):
modules_not_set = OptCheck('MODULES', 'is not set', 'kspp', 'cut_attack_surface') modules_not_set = OptCheck('MODULES', 'is not set', 'kspp', 'cut_attack_surface')
devmem_not_set = OptCheck('DEVMEM', 'is not set', 'kspp', 'cut_attack_surface') # refers to LOCK_DOWN_KERNEL devmem_not_set = OptCheck('DEVMEM', 'is not set', 'kspp', 'cut_attack_surface') # refers to LOCK_DOWN_KERNEL
checklist.append(OptCheck('BUG', 'y', 'defconfig', 'self_protection')) checklist.append(OptCheck('BUG', 'y', 'defconfig', 'self_protection'))
checklist.append(OR(OptCheck('STRICT_KERNEL_RWX', 'y', 'defconfig', 'self_protection'), \ checklist.append(OR(OptCheck('STRICT_KERNEL_RWX', 'y', 'defconfig', 'self_protection'), \
...@@ -182,8 +182,8 @@ def construct_checklist(checklist, arch): ...@@ -182,8 +182,8 @@ def construct_checklist(checklist, arch):
OptCheck('DEBUG_SET_MODULE_RONX', 'y', 'defconfig', 'self_protection'), \ OptCheck('DEBUG_SET_MODULE_RONX', 'y', 'defconfig', 'self_protection'), \
modules_not_set)) # DEBUG_SET_MODULE_RONX was before v4.11 modules_not_set)) # DEBUG_SET_MODULE_RONX was before v4.11
if debug_mode or arch == 'X86_64': if debug_mode or arch == 'X86_64':
checklist.append(OptCheck('PAGE_TABLE_ISOLATION', 'y', 'defconfig', 'self_protection')) checklist.append(OptCheck('PAGE_TABLE_ISOLATION', 'y', 'defconfig', 'self_protection'))
checklist.append(OptCheck('RANDOMIZE_MEMORY', 'y', 'defconfig', 'self_protection')) checklist.append(OptCheck('RANDOMIZE_MEMORY', 'y', 'defconfig', 'self_protection'))
if debug_mode or arch == 'X86_64' or arch == 'X86_32': if debug_mode or arch == 'X86_64' or arch == 'X86_32':
checklist.append(OptCheck('RANDOMIZE_BASE', 'y', 'defconfig', 'self_protection')) checklist.append(OptCheck('RANDOMIZE_BASE', 'y', 'defconfig', 'self_protection'))
checklist.append(OptCheck('RETPOLINE', 'y', 'defconfig', 'self_protection')) checklist.append(OptCheck('RETPOLINE', 'y', 'defconfig', 'self_protection'))
...@@ -232,68 +232,68 @@ def construct_checklist(checklist, arch): ...@@ -232,68 +232,68 @@ def construct_checklist(checklist, arch):
checklist.append(OR(OptCheck('MODULE_SIG_FORCE', 'y', 'kspp', 'self_protection'), \ checklist.append(OR(OptCheck('MODULE_SIG_FORCE', 'y', 'kspp', 'self_protection'), \
modules_not_set)) # refers to LOCK_DOWN_KERNEL modules_not_set)) # refers to LOCK_DOWN_KERNEL
if debug_mode or arch == 'X86_64' or arch == 'X86_32': if debug_mode or arch == 'X86_64' or arch == 'X86_32':
checklist.append(OptCheck('DEFAULT_MMAP_MIN_ADDR', '65536', 'kspp', 'self_protection')) checklist.append(OptCheck('DEFAULT_MMAP_MIN_ADDR', '65536', 'kspp', 'self_protection'))
checklist.append(OptCheck('REFCOUNT_FULL', 'y', 'kspp', 'self_protection')) checklist.append(OptCheck('REFCOUNT_FULL', 'y', 'kspp', 'self_protection'))
if debug_mode or arch == 'X86_32': if debug_mode or arch == 'X86_32':
checklist.append(OptCheck('HIGHMEM64G', 'y', 'kspp', 'self_protection')) checklist.append(OptCheck('HIGHMEM64G', 'y', 'kspp', 'self_protection'))
checklist.append(OptCheck('X86_PAE', 'y', 'kspp', 'self_protection')) checklist.append(OptCheck('X86_PAE', 'y', 'kspp', 'self_protection'))
if debug_mode or arch == 'ARM64': if debug_mode or arch == 'ARM64':
checklist.append(OptCheck('ARM64_SW_TTBR0_PAN', 'y', 'kspp', 'self_protection')) checklist.append(OptCheck('ARM64_SW_TTBR0_PAN', 'y', 'kspp', 'self_protection'))
checklist.append(OptCheck('RANDOMIZE_BASE', 'y', 'kspp', 'self_protection')) checklist.append(OptCheck('RANDOMIZE_BASE', 'y', 'kspp', 'self_protection'))
if debug_mode or arch == 'ARM64' or arch == 'ARM': if debug_mode or arch == 'ARM64' or arch == 'ARM':
checklist.append(OptCheck('SYN_COOKIES', 'y', 'kspp', 'self_protection')) # another reason? checklist.append(OptCheck('SYN_COOKIES', 'y', 'kspp', 'self_protection')) # another reason?
checklist.append(OptCheck('DEFAULT_MMAP_MIN_ADDR', '32768', 'kspp', 'self_protection')) checklist.append(OptCheck('DEFAULT_MMAP_MIN_ADDR', '32768', 'kspp', 'self_protection'))
checklist.append(OptCheck('LOCK_DOWN_KERNEL', 'y', 'clipos', 'self_protection')) # remember about LOCK_DOWN_MANDATORY checklist.append(OptCheck('LOCK_DOWN_KERNEL', 'y', 'clipos', 'self_protection')) # remember about LOCK_DOWN_MANDATORY
checklist.append(OptCheck('SECURITY_DMESG_RESTRICT', 'y', 'clipos', 'self_protection')) checklist.append(OptCheck('SECURITY_DMESG_RESTRICT', 'y', 'clipos', 'self_protection'))
checklist.append(OptCheck('DEBUG_VIRTUAL', 'y', 'clipos', 'self_protection')) checklist.append(OptCheck('DEBUG_VIRTUAL', 'y', 'clipos', 'self_protection'))
checklist.append(OptCheck('STATIC_USERMODEHELPER', 'y', 'clipos', 'self_protection')) # needs userspace support (systemd) checklist.append(OptCheck('STATIC_USERMODEHELPER', 'y', 'clipos', 'self_protection')) # needs userspace support (systemd)
checklist.append(OptCheck('SLAB_MERGE_DEFAULT', 'is not set', 'clipos', 'self_protection')) # slab_nomerge checklist.append(OptCheck('SLAB_MERGE_DEFAULT', 'is not set', 'clipos', 'self_protection')) # slab_nomerge
checklist.append(AND(OptCheck('GCC_PLUGIN_RANDSTRUCT_PERFORMANCE', 'is not set', 'clipos', 'self_protection'), \ checklist.append(AND(OptCheck('GCC_PLUGIN_RANDSTRUCT_PERFORMANCE', 'is not set', 'clipos', 'self_protection'), \
randstruct_is_set)) randstruct_is_set))
if debug_mode or arch == 'X86_64' or arch == 'ARM64' or arch == 'X86_32': if debug_mode or arch == 'X86_64' or arch == 'ARM64' or arch == 'X86_32':
stackleak_is_set = OptCheck('GCC_PLUGIN_STACKLEAK', 'y', 'clipos', 'self_protection') stackleak_is_set = OptCheck('GCC_PLUGIN_STACKLEAK', 'y', 'clipos', 'self_protection')
checklist.append(stackleak_is_set) checklist.append(stackleak_is_set)
checklist.append(AND(OptCheck('STACKLEAK_METRICS', 'is not set', 'clipos', 'self_protection'), \ checklist.append(AND(OptCheck('STACKLEAK_METRICS', 'is not set', 'clipos', 'self_protection'), \
stackleak_is_set)) stackleak_is_set))
checklist.append(AND(OptCheck('STACKLEAK_RUNTIME_DISABLE','is not set', 'clipos', 'self_protection'), \ checklist.append(AND(OptCheck('STACKLEAK_RUNTIME_DISABLE', 'is not set', 'clipos', 'self_protection'), \
stackleak_is_set)) stackleak_is_set))
if debug_mode or arch == 'X86_64' or arch == 'X86_32': if debug_mode or arch == 'X86_64' or arch == 'X86_32':
checklist.append(OptCheck('RANDOM_TRUST_CPU', 'is not set', 'clipos', 'self_protection')) checklist.append(OptCheck('RANDOM_TRUST_CPU', 'is not set', 'clipos', 'self_protection'))
checklist.append(OptCheck('MICROCODE', 'y', 'clipos', 'self_protection')) # is needed for mitigating CPU bugs checklist.append(OptCheck('MICROCODE', 'y', 'clipos', 'self_protection')) # is needed for mitigating CPU bugs
iommu_support_is_set = OptCheck('IOMMU_SUPPORT', 'y', 'clipos', 'self_protection') # is needed for mitigating DMA attacks iommu_support_is_set = OptCheck('IOMMU_SUPPORT', 'y', 'clipos', 'self_protection') # is needed for mitigating DMA attacks
checklist.append(iommu_support_is_set) checklist.append(iommu_support_is_set)
checklist.append(AND(OptCheck('INTEL_IOMMU', 'y', 'clipos', 'self_protection'), \ checklist.append(AND(OptCheck('INTEL_IOMMU', 'y', 'clipos', 'self_protection'), \
iommu_support_is_set)) iommu_support_is_set))
checklist.append(AND(OptCheck('INTEL_IOMMU_SVM', 'y', 'clipos', 'self_protection'), \ checklist.append(AND(OptCheck('INTEL_IOMMU_SVM', 'y', 'clipos', 'self_protection'), \
iommu_support_is_set)) iommu_support_is_set))
checklist.append(AND(OptCheck('INTEL_IOMMU_DEFAULT_ON', 'y', 'clipos', 'self_protection'), \ checklist.append(AND(OptCheck('INTEL_IOMMU_DEFAULT_ON', 'y', 'clipos', 'self_protection'), \
iommu_support_is_set)) iommu_support_is_set))
checklist.append(OR(OptCheck('INIT_STACK_ALL', 'y', 'my', 'self_protection'), \ checklist.append(OR(OptCheck('INIT_STACK_ALL', 'y', 'my', 'self_protection'), \
OptCheck('GCC_PLUGIN_STRUCTLEAK_BYREF_ALL', 'y', 'kspp', 'self_protection'))) OptCheck('GCC_PLUGIN_STRUCTLEAK_BYREF_ALL', 'y', 'kspp', 'self_protection')))
checklist.append(OptCheck('SLUB_DEBUG_ON', 'y', 'my', 'self_protection'))
checklist.append(OptCheck('SECURITY_LOADPIN', 'y', 'my', 'self_protection')) # needs userspace support
checklist.append(OptCheck('RESET_ATTACK_MITIGATION', 'y', 'my', 'self_protection')) # needs userspace support (systemd)
checklist.append(AND(OptCheck('PAGE_POISONING_NO_SANITY', 'is not set', 'my', 'self_protection'), \
page_poisoning_is_set))
checklist.append(AND(OptCheck('PAGE_POISONING_ZERO', 'is not set', 'my', 'self_protection'), \
page_poisoning_is_set))
if debug_mode or arch == 'X86_64': if debug_mode or arch == 'X86_64':
checklist.append(AND(OptCheck('AMD_IOMMU', 'y', 'my', 'self_protection'), \ checklist.append(AND(OptCheck('AMD_IOMMU', 'y', 'my', 'self_protection'), \
iommu_support_is_set)) iommu_support_is_set))
checklist.append(AND(OptCheck('AMD_IOMMU_V2', 'y', 'my', 'self_protection'), \ checklist.append(AND(OptCheck('AMD_IOMMU_V2', 'y', 'my', 'self_protection'), \
iommu_support_is_set)) iommu_support_is_set))
checklist.append(OptCheck('SLUB_DEBUG_ON', 'y', 'my', 'self_protection'))
checklist.append(OptCheck('SECURITY_LOADPIN', 'y', 'my', 'self_protection')) # needs userspace support
checklist.append(OptCheck('RESET_ATTACK_MITIGATION', 'y', 'my', 'self_protection')) # needs userspace support (systemd)
checklist.append(AND(OptCheck('PAGE_POISONING_NO_SANITY', 'is not set', 'my', 'self_protection'), \
page_poisoning_is_set))
checklist.append(AND(OptCheck('PAGE_POISONING_ZERO', 'is not set', 'my', 'self_protection'), \
page_poisoning_is_set))
if debug_mode or arch == 'X86_32': if debug_mode or arch == 'X86_32':
checklist.append(OptCheck('PAGE_TABLE_ISOLATION', 'y', 'my', 'self_protection')) checklist.append(OptCheck('PAGE_TABLE_ISOLATION', 'y', 'my', 'self_protection'))
if debug_mode or arch == 'ARM': if debug_mode or arch == 'ARM':
checklist.append(OptCheck('STACKPROTECTOR_PER_TASK', 'y', 'my', 'self_protection')) checklist.append(OptCheck('STACKPROTECTOR_PER_TASK', 'y', 'my', 'self_protection'))
if debug_mode or arch == 'X86_64' or arch == 'ARM64' or arch == 'X86_32': if debug_mode or arch == 'X86_64' or arch == 'ARM64' or arch == 'X86_32':
checklist.append(OptCheck('SECURITY', 'y', 'defconfig', 'security_policy')) # and choose your favourite LSM checklist.append(OptCheck('SECURITY', 'y', 'defconfig', 'security_policy')) # and choose your favourite LSM
if debug_mode or arch == 'ARM': if debug_mode or arch == 'ARM':
checklist.append(OptCheck('SECURITY', 'y', 'kspp', 'security_policy')) # and choose your favourite LSM checklist.append(OptCheck('SECURITY', 'y', 'kspp', 'security_policy')) # and choose your favourite LSM
checklist.append(OptCheck('SECURITY_YAMA', 'y', 'kspp', 'security_policy')) checklist.append(OptCheck('SECURITY_YAMA', 'y', 'kspp', 'security_policy'))
checklist.append(OptCheck('SECCOMP', 'y', 'defconfig', 'cut_attack_surface')) checklist.append(OptCheck('SECCOMP', 'y', 'defconfig', 'cut_attack_surface'))
checklist.append(OptCheck('SECCOMP_FILTER', 'y', 'defconfig', 'cut_attack_surface')) checklist.append(OptCheck('SECCOMP_FILTER', 'y', 'defconfig', 'cut_attack_surface'))
...@@ -306,7 +306,7 @@ def construct_checklist(checklist, arch): ...@@ -306,7 +306,7 @@ def construct_checklist(checklist, arch):
checklist.append(OR(OptCheck('IO_STRICT_DEVMEM', 'y', 'kspp', 'cut_attack_surface'), \ checklist.append(OR(OptCheck('IO_STRICT_DEVMEM', 'y', 'kspp', 'cut_attack_surface'), \
devmem_not_set)) # refers to LOCK_DOWN_KERNEL devmem_not_set)) # refers to LOCK_DOWN_KERNEL
if debug_mode or arch == 'ARM': if debug_mode or arch == 'ARM':
checklist.append(OR(OptCheck('STRICT_DEVMEM', 'y', 'kspp', 'cut_attack_surface'), \ checklist.append(OR(OptCheck('STRICT_DEVMEM', 'y', 'kspp', 'cut_attack_surface'), \
devmem_not_set)) # refers to LOCK_DOWN_KERNEL devmem_not_set)) # refers to LOCK_DOWN_KERNEL
checklist.append(OptCheck('ACPI_CUSTOM_METHOD', 'is not set', 'kspp', 'cut_attack_surface')) # refers to LOCK_DOWN_KERNEL checklist.append(OptCheck('ACPI_CUSTOM_METHOD', 'is not set', 'kspp', 'cut_attack_surface')) # refers to LOCK_DOWN_KERNEL
checklist.append(OptCheck('COMPAT_BRK', 'is not set', 'kspp', 'cut_attack_surface')) checklist.append(OptCheck('COMPAT_BRK', 'is not set', 'kspp', 'cut_attack_surface'))
...@@ -367,7 +367,7 @@ def construct_checklist(checklist, arch): ...@@ -367,7 +367,7 @@ def construct_checklist(checklist, arch):
checklist.append(OptCheck('FTRACE', 'is not set', 'my', 'cut_attack_surface')) checklist.append(OptCheck('FTRACE', 'is not set', 'my', 'cut_attack_surface'))
checklist.append(OptCheck('BPF_JIT', 'is not set', 'my', 'cut_attack_surface')) checklist.append(OptCheck('BPF_JIT', 'is not set', 'my', 'cut_attack_surface'))
if debug_mode or arch == 'X86_32': if debug_mode or arch == 'X86_32':
checklist.append(OptCheck('MODIFY_LDT_SYSCALL', 'is not set', 'my', 'cut_attack_surface')) checklist.append(OptCheck('MODIFY_LDT_SYSCALL', 'is not set', 'my', 'cut_attack_surface'))
if debug_mode or arch == 'ARM64': if debug_mode or arch == 'ARM64':
checklist.append(OptCheck('ARM64_PTR_AUTH', 'y', 'defconfig', 'userspace_protection')) checklist.append(OptCheck('ARM64_PTR_AUTH', 'y', 'defconfig', 'userspace_protection'))
......
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