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kernel-hardening-checker
Commit 796a2293 by Alexander Popov
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Mark options connected with CONFIG_LOCK_DOWN_KERNEL (and add some new)

parent 57b1cb15
Showing with 27 additions and 17 deletions
README.md
......@@ -55,6 +55,7 @@ optional arguments:
CONFIG_SLAB_FREELIST_RANDOM | y | ubuntu18 | self_protection || OK
CONFIG_HARDENED_USERCOPY | y | ubuntu18 | self_protection || OK
CONFIG_FORTIFY_SOURCE | y | ubuntu18 | self_protection || OK
CONFIG_LOCK_DOWN_KERNEL | y | ubuntu18 | self_protection || OK
CONFIG_STRICT_MODULE_RWX | y | ubuntu18 | self_protection || OK
CONFIG_MODULE_SIG | y | ubuntu18 | self_protection || OK
CONFIG_MODULE_SIG_ALL | y | ubuntu18 | self_protection || OK
......@@ -96,6 +97,7 @@ optional arguments:
CONFIG_PAGE_OWNER | is not set | ubuntu18 | cut_attack_surface || OK
CONFIG_DEBUG_KMEMLEAK | is not set | ubuntu18 | cut_attack_surface || OK
CONFIG_BINFMT_AOUT | is not set | ubuntu18 | cut_attack_surface || OK: not found
CONFIG_MMIOTRACE_TEST | is not set | ubuntu18 | cut_attack_surface || OK
CONFIG_IO_STRICT_DEVMEM | y | kspp | cut_attack_surface || FAIL: "is not set"
CONFIG_LEGACY_VSYSCALL_NONE | y | kspp | cut_attack_surface || FAIL: "is not set"
CONFIG_BINFMT_MISC | is not set | kspp | cut_attack_surface || FAIL: "m"
......@@ -120,18 +122,21 @@ optional arguments:
CONFIG_DEVPORT | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_DEBUG_FS | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_NOTIFIER_ERROR_INJECTION | is not set |grsecurity| cut_attack_surface || FAIL: "m"
CONFIG_ACPI_TABLE_UPGRADE | is not set | lockdown | cut_attack_surface || FAIL: "y"
CONFIG_ACPI_APEI_EINJ | is not set | lockdown | cut_attack_surface || FAIL: "m"
CONFIG_PROFILING | is not set | lockdown | cut_attack_surface || FAIL: "y"
CONFIG_BPF_SYSCALL | is not set | lockdown | cut_attack_surface || FAIL: "y"
CONFIG_MMIOTRACE | is not set | my | cut_attack_surface || FAIL: "y"
CONFIG_KEXEC_FILE | is not set | my | cut_attack_surface || FAIL: "y"
CONFIG_LIVEPATCH | is not set | my | cut_attack_surface || FAIL: "y"
CONFIG_USER_NS | is not set | my | cut_attack_surface || FAIL: "y"
CONFIG_IP_DCCP | is not set | my | cut_attack_surface || FAIL: "m"
CONFIG_IP_SCTP | is not set | my | cut_attack_surface || FAIL: "m"
CONFIG_FTRACE | is not set | my | cut_attack_surface || FAIL: "y"
CONFIG_PROFILING | is not set | my | cut_attack_surface || FAIL: "y"
CONFIG_BPF_JIT | is not set | my | cut_attack_surface || FAIL: "y"
CONFIG_BPF_SYSCALL | is not set | my | cut_attack_surface || FAIL: "y"
CONFIG_ARCH_MMAP_RND_BITS | 32 | my |userspace_protection|| FAIL: "28"
[-] config check is NOT PASSED: 51 errors
[-] config check is NOT PASSED: 54 errors
```
......
kconfig-hardened-check.py
......@@ -98,7 +98,7 @@ class OR:
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')
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'))
......@@ -144,7 +144,7 @@ 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(OptCheck('MODULE_SIG_FORCE', 'y', 'kspp', 'self_protection'))
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('GCC_PLUGIN_STACKLEAK', 'y', 'my', 'self_protection'))
......@@ -161,8 +161,8 @@ def construct_checklist():
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'), \
devmem_not_set))
checklist.append(OptCheck('ACPI_CUSTOM_METHOD', 'is not set', 'ubuntu18', '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'))
......@@ -171,21 +171,22 @@ def construct_checklist():
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))
devmem_not_set)) # refers to LOCK_DOWN_KERNEL
checklist.append(OptCheck('LEGACY_VSYSCALL_NONE', 'y', 'kspp', 'cut_attack_surface')) # 'vsyscall=none'
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'))
checklist.append(OptCheck('PROC_KCORE', 'is not set', 'kspp', 'cut_attack_surface'))
checklist.append(OptCheck('KEXEC', 'is not set', 'kspp', 'cut_attack_surface')) # refers to LOCK_DOWN_KERNEL
checklist.append(OptCheck('PROC_KCORE', 'is not set', 'kspp', 'cut_attack_surface')) # refers to LOCK_DOWN_KERNEL
checklist.append(OptCheck('LEGACY_PTYS', 'is not set', 'kspp', 'cut_attack_surface'))
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('HIBERNATION', '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('KPROBES', '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'))
checklist.append(OptCheck('PROC_VMCORE', 'is not set', 'grsecurity', 'cut_attack_surface'))
......@@ -195,19 +196,23 @@ def construct_checklist():
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'))
checklist.append(OptCheck('DEBUG_FS', 'is not set', 'grsecurity', 'cut_attack_surface'))
checklist.append(OptCheck('DEVPORT', 'is not set', 'grsecurity', 'cut_attack_surface')) # refers to LOCK_DOWN_KERNEL
checklist.append(OptCheck('DEBUG_FS', 'is not set', 'grsecurity', 'cut_attack_surface')) # refers to LOCK_DOWN_KERNEL
checklist.append(OptCheck('NOTIFIER_ERROR_INJECTION','is not set', 'grsecurity', 'cut_attack_surface'))
checklist.append(OptCheck('KEXEC_FILE', 'is not set', 'my', 'cut_attack_surface'))
checklist.append(OptCheck('ACPI_TABLE_UPGRADE', 'is not set', 'lockdown', 'cut_attack_surface')) # refers to LOCK_DOWN_KERNEL
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', '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)
checklist.append(OptCheck('LIVEPATCH', 'is not set', 'my', 'cut_attack_surface'))
checklist.append(OptCheck('USER_NS', 'is not set', 'my', 'cut_attack_surface')) # user.max_user_namespaces=0
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'))
checklist.append(OptCheck('PROFILING', 'is not set', 'my', 'cut_attack_surface'))
checklist.append(OptCheck('BPF_JIT', 'is not set', 'my', 'cut_attack_surface'))
checklist.append(OptCheck('BPF_SYSCALL', 'is not set', 'my', 'cut_attack_surface'))
checklist.append(OptCheck('ARCH_MMAP_RND_BITS', '32', 'my', 'userspace_protection'))
......
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