Mark options connected with CONFIG_LOCK_DOWN_KERNEL (and add some new)

[kconfig-hardened-check.git] / kconfig-hardened-check.py

diff --git a/kconfig-hardened-check.py b/kconfig-hardened-check.py
index ac9ee3ac2ebf27e86b48453303222ae16f90cd49..2c14fd0d206f09576122459454b0b54383220d7a 100755 (executable)
--- a/kconfig-hardened-check.py
+++ b/kconfig-hardened-check.py
@@ -15,6 +15,7 @@
 #    slab_nomerge
 #    pti=on
 #    kernel.kptr_restrict=1
+#    lockdown=1
 
 import sys
 from argparse import ArgumentParser
@@ -97,7 +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'))
@@ -118,6 +119,7 @@ def construct_checklist():
     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))
@@ -142,7 +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'))
@@ -159,8 +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'))
@@ -169,21 +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'))
@@ -193,19 +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'))
 
@@ -216,10 +223,10 @@ def print_checklist():
     print('[+] Printing kernel hardening preferences...')
     print('  {:<39}|{:^13}|{:^10}|{:^20}'.format(
         'option name', 'desired val', 'decision', 'reason'))
-    print('  ' + '=' * 88)
+    print('  ' + '=' * 86)
     for opt in checklist:
         print('  CONFIG_{:<32}|{:^13}|{:^10}|{:^20}'.format(
-                opt.name, opt.expected, opt.decision, opt.reason))
+            opt.name, opt.expected, opt.decision, opt.reason))
     print()