From: Alexander Popov Date: Thu, 9 Jul 2020 11:16:40 +0000 (+0300) Subject: Change the order of arguments in OptCheck constructor X-Git-Tag: v0.5.7~17 X-Git-Url: https://jxself.org/git/?a=commitdiff_plain;h=d64e08377ac6457440ddc3fdae4689119e16da61;p=kconfig-hardened-check.git Change the order of arguments in OptCheck constructor That makes the code style much better. Side note: I was thinking a lot about storing the checking rules separately in some file format. Finally I decided not to do that because: - I want avoid additional parsing (these rules are static anyway); - the rules include a lot of special cases and exceptions, which don't look pretty in any format. --- diff --git a/kconfig_hardened_check/__init__.py b/kconfig_hardened_check/__init__.py index 5cfa2b3..131a4ea 100644 --- a/kconfig_hardened_check/__init__.py +++ b/kconfig_hardened_check/__init__.py @@ -78,7 +78,7 @@ kernel_version = None class OptCheck: - def __init__(self, name, expected, decision, reason): + def __init__(self, reason, decision, name, expected): self.name = name self.expected = expected self.decision = decision @@ -270,236 +270,250 @@ def detect_version(fname): def construct_checklist(checklist, arch): - 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 LOCKDOWN - - checklist.append(OptCheck('BUG', 'y', 'defconfig', 'self_protection')) - checklist.append(OR(OptCheck('STRICT_KERNEL_RWX', 'y', 'defconfig', 'self_protection'), \ - OptCheck('DEBUG_RODATA', 'y', 'defconfig', 'self_protection'))) # before v4.11 - checklist.append(OR(OptCheck('STACKPROTECTOR_STRONG', 'y', 'defconfig', 'self_protection'), \ - OptCheck('CC_STACKPROTECTOR_STRONG', 'y', 'defconfig', 'self_protection'))) - checklist.append(OptCheck('SLUB_DEBUG', 'y', 'defconfig', 'self_protection')) - checklist.append(OR(OptCheck('STRICT_MODULE_RWX', 'y', 'defconfig', 'self_protection'), \ - OptCheck('DEBUG_SET_MODULE_RONX', 'y', 'defconfig', 'self_protection'), \ + 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(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', 'STACKPROTECTOR_STRONG', 'y'), \ + OptCheck('self_protection', 'defconfig', 'CC_STACKPROTECTOR_STRONG', 'y'))) + checklist.append(OptCheck('self_protection', 'defconfig', 'SLUB_DEBUG', 'y')) + 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(OptCheck('GCC_PLUGINS', 'y', 'defconfig', 'self_protection')) - checklist.append(OR(OptCheck('REFCOUNT_FULL', 'y', 'defconfig', 'self_protection'), \ + checklist.append(OptCheck('self_protection', 'defconfig', 'GCC_PLUGINS', 'y')) + 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('IOMMU_SUPPORT', 'y', 'defconfig', 'self_protection') # is needed for mitigating DMA attacks + iommu_support_is_set = OptCheck('self_protection', 'defconfig', 'IOMMU_SUPPORT', 'y') # is needed for mitigating DMA attacks checklist.append(iommu_support_is_set) if arch in ('X86_64', 'X86_32'): - checklist.append(OptCheck('MICROCODE', 'y', 'defconfig', 'self_protection')) # is needed for mitigating CPU bugs - checklist.append(OptCheck('RETPOLINE', 'y', 'defconfig', 'self_protection')) - checklist.append(OptCheck('X86_SMAP', 'y', 'defconfig', 'self_protection')) - checklist.append(OR(OptCheck('X86_UMIP', 'y', 'defconfig', 'self_protection'), \ - OptCheck('X86_INTEL_UMIP', 'y', 'defconfig', 'self_protection'))) - checklist.append(OptCheck('SYN_COOKIES', 'y', 'defconfig', 'self_protection')) # another reason? + 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(OR(OptCheck('self_protection', 'defconfig', 'X86_UMIP', 'y'), \ + OptCheck('self_protection', 'defconfig', 'X86_INTEL_UMIP', 'y'))) + checklist.append(OptCheck('self_protection', 'defconfig', 'SYN_COOKIES', 'y')) # another reason? if arch == 'X86_64': - checklist.append(OptCheck('PAGE_TABLE_ISOLATION', 'y', 'defconfig', 'self_protection')) - checklist.append(OptCheck('RANDOMIZE_MEMORY', 'y', 'defconfig', 'self_protection')) - checklist.append(AND(OptCheck('INTEL_IOMMU', 'y', 'defconfig', 'self_protection'), \ + 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('AMD_IOMMU', 'y', 'defconfig', 'self_protection'), \ + checklist.append(AND(OptCheck('self_protection', 'defconfig', 'AMD_IOMMU', 'y'), \ iommu_support_is_set)) if arch == 'ARM64': - checklist.append(OptCheck('UNMAP_KERNEL_AT_EL0', 'y', 'defconfig', 'self_protection')) - checklist.append(OptCheck('HARDEN_EL2_VECTORS', 'y', 'defconfig', 'self_protection')) - checklist.append(OptCheck('RODATA_FULL_DEFAULT_ENABLED', 'y', 'defconfig', 'self_protection')) - checklist.append(OptCheck('ARM64_PTR_AUTH', 'y', 'defconfig', 'self_protection')) + 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')) if arch in ('X86_64', 'ARM64'): - checklist.append(OptCheck('VMAP_STACK', 'y', 'defconfig', 'self_protection')) + checklist.append(OptCheck('self_protection', 'defconfig', 'VMAP_STACK', 'y')) if arch in ('X86_64', 'ARM64', 'X86_32'): - checklist.append(OptCheck('RANDOMIZE_BASE', 'y', 'defconfig', 'self_protection')) - checklist.append(OptCheck('THREAD_INFO_IN_TASK', 'y', 'defconfig', 'self_protection')) + checklist.append(OptCheck('self_protection', 'defconfig', 'RANDOMIZE_BASE', 'y')) + checklist.append(OptCheck('self_protection', 'defconfig', 'THREAD_INFO_IN_TASK', 'y')) if arch == 'ARM': - checklist.append(OptCheck('CPU_SW_DOMAIN_PAN', 'y', 'defconfig', 'self_protection')) - checklist.append(OptCheck('STACKPROTECTOR_PER_TASK', 'y', 'defconfig', 'self_protection')) + checklist.append(OptCheck('self_protection', 'defconfig', 'CPU_SW_DOMAIN_PAN', 'y')) + checklist.append(OptCheck('self_protection', 'defconfig', 'STACKPROTECTOR_PER_TASK', 'y')) if arch in ('ARM64', 'ARM'): - checklist.append(OptCheck('HARDEN_BRANCH_PREDICTOR', 'y', 'defconfig', 'self_protection')) - - checklist.append(OptCheck('BUG_ON_DATA_CORRUPTION', 'y', 'kspp', 'self_protection')) - checklist.append(OptCheck('DEBUG_WX', 'y', 'kspp', 'self_protection')) - checklist.append(OptCheck('SCHED_STACK_END_CHECK', 'y', 'kspp', 'self_protection')) - checklist.append(OptCheck('SLAB_FREELIST_HARDENED', 'y', 'kspp', 'self_protection')) - checklist.append(OptCheck('SLAB_FREELIST_RANDOM', 'y', 'kspp', 'self_protection')) - checklist.append(OptCheck('SHUFFLE_PAGE_ALLOCATOR', 'y', 'kspp', 'self_protection')) - checklist.append(OptCheck('FORTIFY_SOURCE', 'y', 'kspp', 'self_protection')) - randstruct_is_set = OptCheck('GCC_PLUGIN_RANDSTRUCT', 'y', 'kspp', 'self_protection') + checklist.append(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')) + randstruct_is_set = OptCheck('self_protection', 'kspp', 'GCC_PLUGIN_RANDSTRUCT', 'y') checklist.append(randstruct_is_set) - checklist.append(OptCheck('GCC_PLUGIN_LATENT_ENTROPY', 'y', 'kspp', 'self_protection')) - checklist.append(OptCheck('DEBUG_LIST', 'y', 'kspp', 'self_protection')) - checklist.append(OptCheck('DEBUG_SG', 'y', 'kspp', 'self_protection')) - checklist.append(OptCheck('DEBUG_CREDENTIALS', 'y', 'kspp', 'self_protection')) - checklist.append(OptCheck('DEBUG_NOTIFIERS', 'y', 'kspp', 'self_protection')) - hardened_usercopy_is_set = OptCheck('HARDENED_USERCOPY', 'y', 'kspp', 'self_protection') + checklist.append(OptCheck('self_protection', 'kspp', 'GCC_PLUGIN_LATENT_ENTROPY', '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')) + hardened_usercopy_is_set = OptCheck('self_protection', 'kspp', 'HARDENED_USERCOPY', 'y') checklist.append(hardened_usercopy_is_set) - checklist.append(AND(OptCheck('HARDENED_USERCOPY_FALLBACK', 'is not set', 'kspp', 'self_protection'), \ + checklist.append(AND(OptCheck('self_protection', 'kspp', 'HARDENED_USERCOPY_FALLBACK', 'is not set'), \ hardened_usercopy_is_set)) - checklist.append(OR(OptCheck('MODULE_SIG', 'y', 'kspp', 'self_protection'), \ + checklist.append(OR(OptCheck('self_protection', 'kspp', 'MODULE_SIG', 'y'), \ modules_not_set)) - checklist.append(OR(OptCheck('MODULE_SIG_ALL', 'y', 'kspp', 'self_protection'), \ + checklist.append(OR(OptCheck('self_protection', 'kspp', 'MODULE_SIG_ALL', 'y'), \ modules_not_set)) - checklist.append(OR(OptCheck('MODULE_SIG_SHA512', 'y', 'kspp', 'self_protection'), \ + checklist.append(OR(OptCheck('self_protection', 'kspp', 'MODULE_SIG_SHA512', 'y'), \ modules_not_set)) - checklist.append(OR(OptCheck('MODULE_SIG_FORCE', 'y', 'kspp', 'self_protection'), \ + checklist.append(OR(OptCheck('self_protection', 'kspp', 'MODULE_SIG_FORCE', 'y'), \ modules_not_set)) # refers to LOCKDOWN - checklist.append(OR(OptCheck('INIT_STACK_ALL', 'y', 'kspp', 'self_protection'), \ - OptCheck('GCC_PLUGIN_STRUCTLEAK_BYREF_ALL', 'y', 'kspp', 'self_protection'))) - checklist.append(OptCheck('INIT_ON_ALLOC_DEFAULT_ON', 'y', 'kspp', 'self_protection')) - checklist.append(OR(OptCheck('INIT_ON_FREE_DEFAULT_ON', 'y', 'kspp', 'self_protection'), \ - OptCheck('PAGE_POISONING', 'y', 'kspp', 'self_protection'))) # before v5.3 + checklist.append(OR(OptCheck('self_protection', 'kspp', 'INIT_STACK_ALL', 'y'), \ + OptCheck('self_protection', 'kspp', 'GCC_PLUGIN_STRUCTLEAK_BYREF_ALL', 'y'))) + checklist.append(OptCheck('self_protection', 'kspp', 'INIT_ON_ALLOC_DEFAULT_ON', 'y')) + checklist.append(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('GCC_PLUGIN_STACKLEAK', 'y', 'kspp', 'self_protection') + stackleak_is_set = OptCheck('self_protection', 'kspp', 'GCC_PLUGIN_STACKLEAK', 'y') checklist.append(stackleak_is_set) - checklist.append(AND(OptCheck('STACKLEAK_METRICS', 'is not set', 'clipos', 'self_protection'), \ + checklist.append(AND(OptCheck('self_protection', 'clipos', 'STACKLEAK_METRICS', 'is not set'), \ stackleak_is_set)) - checklist.append(AND(OptCheck('STACKLEAK_RUNTIME_DISABLE', 'is not set', 'clipos', 'self_protection'), \ + checklist.append(AND(OptCheck('self_protection', 'clipos', 'STACKLEAK_RUNTIME_DISABLE', 'is not set'), \ stackleak_is_set)) if arch in ('X86_64', 'X86_32'): - checklist.append(OptCheck('DEFAULT_MMAP_MIN_ADDR', '65536', 'kspp', 'self_protection')) + checklist.append(OptCheck('self_protection', 'kspp', 'DEFAULT_MMAP_MIN_ADDR', '65536')) if arch == 'X86_32': - checklist.append(OptCheck('PAGE_TABLE_ISOLATION', 'y', 'kspp', 'self_protection')) - checklist.append(OptCheck('HIGHMEM64G', 'y', 'kspp', 'self_protection')) - checklist.append(OptCheck('X86_PAE', 'y', 'kspp', 'self_protection')) + 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')) if arch == 'ARM64': - checklist.append(OptCheck('ARM64_SW_TTBR0_PAN', 'y', 'kspp', 'self_protection')) + checklist.append(OptCheck('self_protection', 'kspp', 'ARM64_SW_TTBR0_PAN', 'y')) if arch in ('ARM64', 'ARM'): - 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('SECURITY_DMESG_RESTRICT', '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('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(OptCheck('self_protection', 'kspp', 'SYN_COOKIES', 'y')) # another reason? + checklist.append(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(AND(OptCheck('self_protection', 'clipos', 'GCC_PLUGIN_RANDSTRUCT_PERFORMANCE', 'is not set'), \ randstruct_is_set)) - checklist.append(OptCheck('RANDOM_TRUST_BOOTLOADER', 'is not set', 'clipos', 'self_protection')) - checklist.append(OptCheck('RANDOM_TRUST_CPU', 'is not set', 'clipos', 'self_protection')) + checklist.append(OptCheck('self_protection', 'clipos', 'RANDOM_TRUST_BOOTLOADER', 'is not set')) + checklist.append(OptCheck('self_protection', 'clipos', 'RANDOM_TRUST_CPU', 'is not set')) if arch in ('X86_64', 'X86_32'): - checklist.append(AND(OptCheck('INTEL_IOMMU_SVM', 'y', 'clipos', 'self_protection'), \ + checklist.append(AND(OptCheck('self_protection', 'clipos', 'INTEL_IOMMU_SVM', 'y'), \ iommu_support_is_set)) - checklist.append(AND(OptCheck('INTEL_IOMMU_DEFAULT_ON', 'y', 'clipos', 'self_protection'), \ + checklist.append(AND(OptCheck('self_protection', 'clipos', 'INTEL_IOMMU_DEFAULT_ON', 'y'), \ iommu_support_is_set)) if arch == 'X86_32': - checklist.append(AND(OptCheck('INTEL_IOMMU', 'y', 'clipos', 'self_protection'), \ + checklist.append(AND(OptCheck('self_protection', 'clipos', 'INTEL_IOMMU', 'y'), \ iommu_support_is_set)) - checklist.append(OptCheck('SLUB_DEBUG_ON', 'y', 'my', 'self_protection')) - checklist.append(OptCheck('RESET_ATTACK_MITIGATION', 'y', 'my', 'self_protection')) # needs userspace support (systemd) + # '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) if arch == 'X86_64': - checklist.append(AND(OptCheck('AMD_IOMMU_V2', 'y', 'my', 'self_protection'), \ + checklist.append(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', 'y', 'defconfig', 'security_policy')) # and choose your favourite LSM + checklist.append(OptCheck('security_policy', 'defconfig', 'SECURITY', 'y')) # and choose your favourite LSM if arch == 'ARM': - checklist.append(OptCheck('SECURITY', 'y', 'kspp', 'security_policy')) # and choose your favourite LSM - checklist.append(OptCheck('SECURITY_YAMA', 'y', 'kspp', 'security_policy')) - checklist.append(OR(OptCheck('SECURITY_WRITABLE_HOOKS', 'is not set', 'my', 'security_policy'), \ - OptCheck('SECURITY_SELINUX_DISABLE', 'is not set', 'kspp', 'security_policy'))) - checklist.append(OptCheck('SECURITY_LOCKDOWN_LSM', 'y', 'clipos', 'security_policy')) - checklist.append(OptCheck('SECURITY_LOCKDOWN_LSM_EARLY', 'y', 'clipos', 'security_policy')) - checklist.append(OptCheck('LOCK_DOWN_KERNEL_FORCE_CONFIDENTIALITY', 'y', 'clipos', 'security_policy')) - loadpin_is_set = OptCheck('SECURITY_LOADPIN', 'y', 'my', 'security_policy') # needs userspace support + 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')) + loadpin_is_set = OptCheck('security_policy', 'my', 'SECURITY_LOADPIN', 'y') # needs userspace support checklist.append(loadpin_is_set) - checklist.append(AND(OptCheck('SECURITY_LOADPIN_ENFORCE', 'y', 'my', 'security_policy'), \ + checklist.append(AND(OptCheck('security_policy', 'my', 'SECURITY_LOADPIN_ENFORCE', 'y'), \ loadpin_is_set)) - checklist.append(OptCheck('SECURITY_SAFESETID', 'y', 'my', 'security_policy')) + checklist.append(OptCheck('security_policy', 'my', 'SECURITY_SAFESETID', 'y')) - checklist.append(OptCheck('SECCOMP', 'y', 'defconfig', 'cut_attack_surface')) - checklist.append(OptCheck('SECCOMP_FILTER', 'y', 'defconfig', 'cut_attack_surface')) + # 'cut_attack_surface', 'defconfig' + checklist.append(OptCheck('cut_attack_surface', 'defconfig', 'SECCOMP', 'y')) + checklist.append(OptCheck('cut_attack_surface', 'defconfig', 'SECCOMP_FILTER', 'y')) if arch in ('X86_64', 'ARM64', 'X86_32'): - checklist.append(OR(OptCheck('STRICT_DEVMEM', 'y', 'defconfig', 'cut_attack_surface'), \ + checklist.append(OR(OptCheck('cut_attack_surface', 'defconfig', 'STRICT_DEVMEM', 'y'), \ devmem_not_set)) # refers to LOCKDOWN + # 'cut_attack_surface', 'kspp' checklist.append(modules_not_set) checklist.append(devmem_not_set) - checklist.append(OR(OptCheck('IO_STRICT_DEVMEM', 'y', 'kspp', 'cut_attack_surface'), \ + checklist.append(OR(OptCheck('cut_attack_surface', 'kspp', 'IO_STRICT_DEVMEM', 'y'), \ devmem_not_set)) # refers to LOCKDOWN if arch == 'ARM': - checklist.append(OR(OptCheck('STRICT_DEVMEM', 'y', 'kspp', 'cut_attack_surface'), \ + checklist.append(OR(OptCheck('cut_attack_surface', 'kspp', 'STRICT_DEVMEM', 'y'), \ devmem_not_set)) # refers to LOCKDOWN if arch == 'X86_64': - checklist.append(OptCheck('LEGACY_VSYSCALL_NONE', 'y', 'kspp', 'cut_attack_surface')) # 'vsyscall=none' - checklist.append(OptCheck('ACPI_CUSTOM_METHOD', 'is not set', 'kspp', 'cut_attack_surface')) # refers to LOCKDOWN - checklist.append(OptCheck('COMPAT_BRK', 'is not set', 'kspp', 'cut_attack_surface')) - checklist.append(OptCheck('DEVKMEM', 'is not set', 'kspp', 'cut_attack_surface')) # refers to LOCKDOWN - checklist.append(OptCheck('COMPAT_VDSO', 'is not set', 'kspp', 'cut_attack_surface')) - checklist.append(OptCheck('BINFMT_MISC', 'is not set', 'kspp', 'cut_attack_surface')) - checklist.append(OptCheck('INET_DIAG', 'is not set', 'kspp', 'cut_attack_surface')) - checklist.append(OptCheck('KEXEC', 'is not set', 'kspp', 'cut_attack_surface')) # refers to LOCKDOWN - checklist.append(OptCheck('PROC_KCORE', 'is not set', 'kspp', 'cut_attack_surface')) # refers to LOCKDOWN - checklist.append(OptCheck('LEGACY_PTYS', 'is not set', 'kspp', 'cut_attack_surface')) - checklist.append(OptCheck('HIBERNATION', 'is not set', 'kspp', 'cut_attack_surface')) # refers to LOCKDOWN - checklist.append(OptCheck('IA32_EMULATION', 'is not set', 'kspp', 'cut_attack_surface')) - checklist.append(OptCheck('X86_X32', 'is not set', 'kspp', 'cut_attack_surface')) - checklist.append(OptCheck('MODIFY_LDT_SYSCALL', 'is not set', 'kspp', 'cut_attack_surface')) - checklist.append(OptCheck('OABI_COMPAT', 'is not set', 'kspp', 'cut_attack_surface')) - - checklist.append(OptCheck('X86_PTDUMP', 'is not set', 'grsecurity', 'cut_attack_surface')) - checklist.append(OptCheck('ZSMALLOC_STAT', 'is not set', 'grsecurity', 'cut_attack_surface')) - checklist.append(OptCheck('PAGE_OWNER', 'is not set', 'grsecurity', 'cut_attack_surface')) - checklist.append(OptCheck('DEBUG_KMEMLEAK', 'is not set', 'grsecurity', 'cut_attack_surface')) - checklist.append(OptCheck('BINFMT_AOUT', 'is not set', 'grsecurity', 'cut_attack_surface')) - checklist.append(OptCheck('KPROBES', 'is not set', 'grsecurity', 'cut_attack_surface')) # refers to LOCKDOWN - checklist.append(OptCheck('UPROBES', 'is not set', 'grsecurity', 'cut_attack_surface')) - checklist.append(OptCheck('GENERIC_TRACER', 'is not set', 'grsecurity', 'cut_attack_surface')) # refers to LOCKDOWN - checklist.append(OptCheck('PROC_VMCORE', 'is not set', 'grsecurity', 'cut_attack_surface')) - checklist.append(OptCheck('PROC_PAGE_MONITOR', 'is not set', 'grsecurity', 'cut_attack_surface')) - checklist.append(OptCheck('USELIB', 'is not set', 'grsecurity', 'cut_attack_surface')) - checklist.append(OptCheck('CHECKPOINT_RESTORE', 'is not set', 'grsecurity', 'cut_attack_surface')) - checklist.append(OptCheck('USERFAULTFD', 'is not set', 'grsecurity', 'cut_attack_surface')) - checklist.append(OptCheck('HWPOISON_INJECT', 'is not set', 'grsecurity', 'cut_attack_surface')) - checklist.append(OptCheck('MEM_SOFT_DIRTY', 'is not set', 'grsecurity', 'cut_attack_surface')) - checklist.append(OptCheck('DEVPORT', 'is not set', 'grsecurity', 'cut_attack_surface')) # refers to LOCKDOWN - checklist.append(OptCheck('DEBUG_FS', 'is not set', 'grsecurity', 'cut_attack_surface')) # refers to LOCKDOWN - checklist.append(OptCheck('NOTIFIER_ERROR_INJECTION','is not set', 'grsecurity', 'cut_attack_surface')) - - checklist.append(OptCheck('DRM_LEGACY', 'is not set', 'maintainer', 'cut_attack_surface')) - checklist.append(OptCheck('FB', 'is not set', 'maintainer', 'cut_attack_surface')) - checklist.append(OptCheck('VT', 'is not set', 'maintainer', 'cut_attack_surface')) - - checklist.append(OptCheck('ACPI_TABLE_UPGRADE', 'is not set', 'lockdown', 'cut_attack_surface')) # refers to LOCKDOWN - checklist.append(OptCheck('X86_IOPL_IOPERM', 'is not set', 'lockdown', 'cut_attack_surface')) # refers to LOCKDOWN - checklist.append(OptCheck('EFI_TEST', 'is not set', 'lockdown', 'cut_attack_surface')) # refers to LOCKDOWN - checklist.append(OptCheck('BPF_SYSCALL', 'is not set', 'lockdown', 'cut_attack_surface')) # refers to LOCKDOWN - checklist.append(OptCheck('MMIOTRACE_TEST', 'is not set', 'lockdown', 'cut_attack_surface')) # refers to LOCKDOWN - + checklist.append(OptCheck('cut_attack_surface', 'kspp', 'LEGACY_VSYSCALL_NONE', 'y')) # 'vsyscall=none' + 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')) + + # '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')) + + # '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')) + + # '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 + + # 'cut_attack_surface', 'clipos' if arch in ('X86_64', 'X86_32'): - checklist.append(OptCheck('X86_INTEL_TSX_MODE_OFF', 'y', 'clipos', 'cut_attack_surface')) # tsx=off - checklist.append(OptCheck('STAGING', 'is not set', 'clipos', 'cut_attack_surface')) - checklist.append(OptCheck('KSM', 'is not set', 'clipos', 'cut_attack_surface')) # to prevent FLUSH+RELOAD attack -# checklist.append(OptCheck('IKCONFIG', 'is not set', 'clipos', 'cut_attack_surface')) # no, this info is needed for this check :) - checklist.append(OptCheck('KALLSYMS', 'is not set', 'clipos', 'cut_attack_surface')) - checklist.append(OptCheck('X86_VSYSCALL_EMULATION', 'is not set', 'clipos', 'cut_attack_surface')) - checklist.append(OptCheck('MAGIC_SYSRQ', 'is not set', 'clipos', 'cut_attack_surface')) - checklist.append(OptCheck('KEXEC_FILE', 'is not set', 'clipos', 'cut_attack_surface')) # refers to LOCKDOWN (permissive) - checklist.append(OptCheck('USER_NS', 'is not set', 'clipos', 'cut_attack_surface')) # user.max_user_namespaces=0 - checklist.append(OptCheck('X86_MSR', 'is not set', 'clipos', 'cut_attack_surface')) # refers to LOCKDOWN - checklist.append(OptCheck('X86_CPUID', 'is not set', 'clipos', 'cut_attack_surface')) - checklist.append(AND(OptCheck('LDISC_AUTOLOAD', 'is not set', 'clipos', 'cut_attack_surface'), \ + checklist.append(OptCheck('cut_attack_surface', 'clipos', 'X86_INTEL_TSX_MODE_OFF', 'y')) # tsx=off + 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'))) - checklist.append(OptCheck('AIO', 'is not set', 'grapheneos', 'cut_attack_surface')) - - checklist.append(OptCheck('MMIOTRACE', 'is not set', 'my', 'cut_attack_surface')) # refers to LOCKDOWN (permissive) - checklist.append(OptCheck('LIVEPATCH', 'is not set', 'my', 'cut_attack_surface')) - checklist.append(OptCheck('IP_DCCP', 'is not set', 'my', 'cut_attack_surface')) - checklist.append(OptCheck('IP_SCTP', 'is not set', 'my', 'cut_attack_surface')) - checklist.append(OptCheck('FTRACE', 'is not set', 'my', 'cut_attack_surface')) # refers to LOCKDOWN - checklist.append(OptCheck('BPF_JIT', 'is not set', 'my', 'cut_attack_surface')) - checklist.append(OptCheck('VIDEO_VIVID', 'is not set', 'my', 'cut_attack_surface')) - checklist.append(OptCheck('INPUT_EVBUG', 'is not set', 'my', 'cut_attack_surface')) # Can be used as a keylogger - - checklist.append(OptCheck('INTEGRITY', 'y', 'defconfig', 'userspace_hardening')) + # 'cut_attack_surface', 'grapheneos' + checklist.append(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 + + # 'userspace_hardening' + checklist.append(OptCheck('userspace_hardening', 'defconfig', 'INTEGRITY', 'y')) if arch in ('ARM', 'X86_32'): - checklist.append(OptCheck('VMSPLIT_3G', 'y', 'defconfig', 'userspace_hardening')) + checklist.append(OptCheck('userspace_hardening', 'defconfig', 'VMSPLIT_3G', 'y')) if arch in ('X86_64', 'ARM64'): - checklist.append(OptCheck('ARCH_MMAP_RND_BITS', '32', 'clipos', 'userspace_hardening')) + checklist.append(OptCheck('userspace_hardening', 'clipos', 'ARCH_MMAP_RND_BITS', '32')) if arch in ('X86_32', 'ARM'): - checklist.append(OptCheck('ARCH_MMAP_RND_BITS', '16', 'my', 'userspace_hardening')) + checklist.append(OptCheck('userspace_hardening', 'my', 'ARCH_MMAP_RND_BITS', '16')) -# checklist.append(OptCheck('LKDTM', 'm', 'my', 'feature_test')) +# checklist.append(OptCheck('feature_test', 'my', 'LKDTM', 'm')) # only for debugging! def print_checklist(checklist, with_results):