X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=kconfig-hardened-check.py;h=c7b2c9bde797544c19ec92b84bee32f36bb643e0;hb=f31d72a9ab6d7ae62bd1bf75f2ac768af5c17f0b;hp=e509174115c128b2fd7b9c976cad9467a09fcfff;hpb=cf84449ddd15b770b74b715856518d062ad9287b;p=kconfig-hardened-check.git diff --git a/kconfig-hardened-check.py b/kconfig-hardened-check.py index e509174..c7b2c9b 100755 --- a/kconfig-hardened-check.py +++ b/kconfig-hardened-check.py @@ -17,9 +17,17 @@ # kernel.kptr_restrict=1 # lockdown=1 # +# spectre_v2=on +# pti=on +# spec_store_bypass_disable=on +# l1tf=full,force +# +# # N.B. Hardening sysctl's: # net.core.bpf_jit_harden # +# +# TODO: add hardening preferences for ARM import sys from argparse import ArgumentParser @@ -104,40 +112,35 @@ def construct_checklist(): 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 - checklist.append(OptCheck('BUG', 'y', 'ubuntu18', 'self_protection')) - checklist.append(OptCheck('PAGE_TABLE_ISOLATION', 'y', 'ubuntu18', 'self_protection')) - checklist.append(OptCheck('RETPOLINE', 'y', 'ubuntu18', 'self_protection')) - checklist.append(OptCheck('X86_64', 'y', 'ubuntu18', 'self_protection')) - checklist.append(OR(OptCheck('STRICT_KERNEL_RWX', 'y', 'ubuntu18', 'self_protection'), \ - OptCheck('DEBUG_RODATA', 'y', 'before_v4.11', 'self_protection'))) - checklist.append(OptCheck('DEBUG_WX', 'y', 'ubuntu18', 'self_protection')) - checklist.append(OptCheck('RANDOMIZE_BASE', 'y', 'ubuntu18', 'self_protection')) - checklist.append(OptCheck('RANDOMIZE_MEMORY', 'y', 'ubuntu18', 'self_protection')) - checklist.append(OR(OptCheck('STACKPROTECTOR_STRONG', 'y', 'ubuntu18', 'self_protection'), \ - OptCheck('CC_STACKPROTECTOR_STRONG', 'y', 'ubuntu18', 'self_protection'))) - checklist.append(OptCheck('VMAP_STACK', 'y', 'ubuntu18', 'self_protection')) - checklist.append(OptCheck('THREAD_INFO_IN_TASK', 'y', 'ubuntu18', 'self_protection')) - checklist.append(OptCheck('SCHED_STACK_END_CHECK', 'y', 'ubuntu18', 'self_protection')) - checklist.append(OptCheck('SLUB_DEBUG', 'y', 'ubuntu18', 'self_protection')) - checklist.append(OptCheck('SLAB_FREELIST_HARDENED', 'y', 'ubuntu18', 'self_protection')) - checklist.append(OptCheck('SLAB_FREELIST_RANDOM', 'y', 'ubuntu18', 'self_protection')) - checklist.append(OptCheck('HARDENED_USERCOPY', 'y', 'ubuntu18', 'self_protection')) - checklist.append(OptCheck('FORTIFY_SOURCE', 'y', 'ubuntu18', 'self_protection')) - checklist.append(OptCheck('LOCK_DOWN_KERNEL', 'y', 'ubuntu18', 'self_protection')) # remember about LOCK_DOWN_MANDATORY - checklist.append(OR(OptCheck('STRICT_MODULE_RWX', 'y', 'ubuntu18', 'self_protection'), \ - OptCheck('DEBUG_SET_MODULE_RONX', 'y', 'before_v4.11', 'self_protection'), \ - modules_not_set)) - checklist.append(OR(OptCheck('MODULE_SIG', 'y', 'ubuntu18', 'self_protection'), \ - modules_not_set)) - checklist.append(OR(OptCheck('MODULE_SIG_ALL', 'y', 'ubuntu18', 'self_protection'), \ - modules_not_set)) - checklist.append(OR(OptCheck('MODULE_SIG_SHA512', 'y', 'ubuntu18', 'self_protection'), \ - modules_not_set)) - checklist.append(OptCheck('SYN_COOKIES', 'y', 'ubuntu18', 'self_protection')) # another reason? - checklist.append(OptCheck('DEFAULT_MMAP_MIN_ADDR', '65536', 'ubuntu18', 'self_protection')) + checklist.append(OptCheck('BUG', 'y', 'defconfig', 'self_protection')) + checklist.append(OptCheck('PAGE_TABLE_ISOLATION', 'y', 'defconfig', 'self_protection')) + checklist.append(OptCheck('RETPOLINE', 'y', 'defconfig', 'self_protection')) + checklist.append(OptCheck('X86_64', 'y', 'defconfig', 'self_protection')) + checklist.append(OptCheck('X86_SMAP', 'y', 'defconfig', 'self_protection')) + checklist.append(OptCheck('X86_INTEL_UMIP', '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(OptCheck('RANDOMIZE_BASE', 'y', 'defconfig', 'self_protection')) + checklist.append(OptCheck('RANDOMIZE_MEMORY', 'y', 'defconfig', 'self_protection')) + checklist.append(OR(OptCheck('STACKPROTECTOR_STRONG', 'y', 'defconfig', 'self_protection'), \ + OptCheck('CC_STACKPROTECTOR_STRONG', 'y', 'defconfig', 'self_protection'))) + checklist.append(OptCheck('VMAP_STACK', 'y', 'defconfig', 'self_protection')) + checklist.append(OptCheck('THREAD_INFO_IN_TASK', '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)) # DEBUG_SET_MODULE_RONX was before v4.11 + checklist.append(OptCheck('SYN_COOKIES', 'y', 'defconfig', 'self_protection')) # another reason? 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('PAGE_POISONING', '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('HARDENED_USERCOPY', 'y', 'kspp', 'self_protection')) + checklist.append(OptCheck('HARDENED_USERCOPY_FALLBACK', 'is not set', 'kspp', 'self_protection')) + checklist.append(OptCheck('FORTIFY_SOURCE', 'y', 'kspp', 'self_protection')) checklist.append(OptCheck('GCC_PLUGINS', 'y', 'kspp', 'self_protection')) checklist.append(OptCheck('GCC_PLUGIN_RANDSTRUCT', 'y', 'kspp', 'self_protection')) checklist.append(OptCheck('GCC_PLUGIN_STRUCTLEAK', 'y', 'kspp', 'self_protection')) @@ -148,10 +151,17 @@ def construct_checklist(): 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')) + checklist.append(OR(OptCheck('MODULE_SIG', 'y', 'kspp', 'self_protection'), \ + modules_not_set)) + checklist.append(OR(OptCheck('MODULE_SIG_ALL', 'y', 'kspp', 'self_protection'), \ + modules_not_set)) + checklist.append(OR(OptCheck('MODULE_SIG_SHA512', 'y', 'kspp', 'self_protection'), \ + modules_not_set)) checklist.append(OptCheck('MODULE_SIG_FORCE', 'y', 'kspp', 'self_protection')) # refers to LOCK_DOWN_KERNEL - checklist.append(OptCheck('HARDENED_USERCOPY_FALLBACK', 'is not set', 'kspp', 'self_protection')) + checklist.append(OptCheck('DEFAULT_MMAP_MIN_ADDR', '65536', 'kspp', 'self_protection')) checklist.append(OptCheck('GCC_PLUGIN_STACKLEAK', 'y', 'my', 'self_protection')) + checklist.append(OptCheck('LOCK_DOWN_KERNEL', 'y', 'my', 'self_protection')) # remember about LOCK_DOWN_MANDATORY checklist.append(OptCheck('SLUB_DEBUG_ON', 'y', 'my', 'self_protection')) checklist.append(OptCheck('SECURITY_DMESG_RESTRICT', 'y', 'my', 'self_protection')) checklist.append(OptCheck('STATIC_USERMODEHELPER', 'y', 'my', 'self_protection')) # breaks systemd? @@ -160,28 +170,22 @@ def construct_checklist(): checklist.append(OptCheck('PAGE_POISONING_ZERO', 'is not set', 'my', 'self_protection')) checklist.append(OptCheck('SLAB_MERGE_DEFAULT', 'is not set', 'my', 'self_protection')) # slab_nomerge - checklist.append(OptCheck('SECURITY', 'y', 'ubuntu18', 'security_policy')) - checklist.append(OptCheck('SECURITY_YAMA', 'y', 'ubuntu18', 'security_policy')) - checklist.append(OptCheck('SECURITY_SELINUX_DISABLE', 'is not set', 'ubuntu18', 'security_policy')) + checklist.append(OptCheck('SECURITY', 'y', 'defconfig', 'security_policy')) + checklist.append(OptCheck('SECURITY_YAMA', 'y', 'kspp', 'security_policy')) + checklist.append(OptCheck('SECURITY_SELINUX_DISABLE', 'is not set', 'kspp', 'security_policy')) - checklist.append(OptCheck('SECCOMP', 'y', 'ubuntu18', 'cut_attack_surface')) - checklist.append(OptCheck('SECCOMP_FILTER', 'y', 'ubuntu18', 'cut_attack_surface')) - checklist.append(OR(OptCheck('STRICT_DEVMEM', 'y', 'ubuntu18', 'cut_attack_surface'), \ + checklist.append(OptCheck('SECCOMP', 'y', 'defconfig', 'cut_attack_surface')) + checklist.append(OptCheck('SECCOMP_FILTER', 'y', 'defconfig', 'cut_attack_surface')) + checklist.append(OR(OptCheck('STRICT_DEVMEM', 'y', 'defconfig', 'cut_attack_surface'), \ devmem_not_set)) # refers to LOCK_DOWN_KERNEL - checklist.append(OptCheck('ACPI_CUSTOM_METHOD', 'is not set', 'ubuntu18', 'cut_attack_surface')) # refers to LOCK_DOWN_KERNEL - checklist.append(OptCheck('COMPAT_BRK', 'is not set', 'ubuntu18', 'cut_attack_surface')) - checklist.append(OptCheck('DEVKMEM', 'is not set', 'ubuntu18', 'cut_attack_surface')) - checklist.append(OptCheck('COMPAT_VDSO', 'is not set', 'ubuntu18', 'cut_attack_surface')) - checklist.append(OptCheck('X86_PTDUMP', 'is not set', 'ubuntu18', 'cut_attack_surface')) - checklist.append(OptCheck('ZSMALLOC_STAT', 'is not set', 'ubuntu18', 'cut_attack_surface')) - checklist.append(OptCheck('PAGE_OWNER', 'is not set', 'ubuntu18', 'cut_attack_surface')) - checklist.append(OptCheck('DEBUG_KMEMLEAK', 'is not set', 'ubuntu18', 'cut_attack_surface')) - checklist.append(OptCheck('BINFMT_AOUT', 'is not set', 'ubuntu18', 'cut_attack_surface')) - checklist.append(OptCheck('MMIOTRACE_TEST', 'is not set', 'ubuntu18', 'cut_attack_surface')) # refers to LOCK_DOWN_KERNEL checklist.append(OR(OptCheck('IO_STRICT_DEVMEM', 'y', 'kspp', 'cut_attack_surface'), \ devmem_not_set)) # refers to LOCK_DOWN_KERNEL 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 LOCK_DOWN_KERNEL + checklist.append(OptCheck('COMPAT_BRK', 'is not set', 'kspp', 'cut_attack_surface')) + checklist.append(OptCheck('DEVKMEM', 'is not set', 'kspp', 'cut_attack_surface')) + 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 LOCK_DOWN_KERNEL @@ -192,6 +196,11 @@ def construct_checklist(): checklist.append(OptCheck('MODIFY_LDT_SYSCALL', 'is not set', 'kspp', 'cut_attack_surface')) checklist.append(OptCheck('HIBERNATION', 'is not set', 'kspp', 'cut_attack_surface')) # refers to LOCK_DOWN_KERNEL + 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 LOCK_DOWN_KERNEL checklist.append(OptCheck('UPROBES', 'is not set', 'grsecurity', 'cut_attack_surface')) checklist.append(OptCheck('GENERIC_TRACER', 'is not set', 'grsecurity', 'cut_attack_surface')) @@ -210,6 +219,7 @@ def construct_checklist(): checklist.append(OptCheck('ACPI_APEI_EINJ', 'is not set', 'lockdown', 'cut_attack_surface')) # refers to LOCK_DOWN_KERNEL checklist.append(OptCheck('PROFILING', 'is not set', 'lockdown', 'cut_attack_surface')) # refers to LOCK_DOWN_KERNEL checklist.append(OptCheck('BPF_SYSCALL', 'is not set', 'lockdown', 'cut_attack_surface')) # refers to LOCK_DOWN_KERNEL + checklist.append(OptCheck('MMIOTRACE_TEST', 'is not set', 'lockdown', 'cut_attack_surface')) # refers to LOCK_DOWN_KERNEL checklist.append(OptCheck('MMIOTRACE', 'is not set', 'my', 'cut_attack_surface')) # refers to LOCK_DOWN_KERNEL (permissive) checklist.append(OptCheck('KEXEC_FILE', 'is not set', 'my', 'cut_attack_surface')) # refers to LOCK_DOWN_KERNEL (permissive)