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fact-depend
kernel-hardening-checker
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333af009
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333af009
authored
Sep 02, 2022
by
Alexander Popov
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README.md
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333af009
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@@ -89,11 +89,12 @@ CONFIG_DEVMEM | is not set | kspp | cut_atta
## Example output for `Fedora 34` kernel config
```
$ ./bin/kconfig-hardened-check -c /boot/config-5.1
6.20-100.fc34
.x86_64 -l /proc/cmdline
[+] Kconfig file to check: /boot/config-5.1
6.20-100.fc34
.x86_64
$ ./bin/kconfig-hardened-check -c /boot/config-5.1
9.4-200.fc36
.x86_64 -l /proc/cmdline
[+] Kconfig file to check: /boot/config-5.1
9.4-200.fc36
.x86_64
[+] Kernel cmdline file to check: /proc/cmdline
[+] Detected architecture: X86_64
[+] Detected kernel version: 5.16
[+] Detected kernel version: 5.19
[+] Detected compiler: GCC 120201
=========================================================================================================================
option name | type |desired val | decision | reason | check result
=========================================================================================================================
...
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@@ -111,14 +112,13 @@ CONFIG_RANDOMIZE_BASE |kconfig| y |defconfig | self_p
CONFIG_VMAP_STACK |kconfig| y |defconfig | self_protection | OK
CONFIG_MICROCODE |kconfig| y |defconfig | self_protection | OK
CONFIG_RETPOLINE |kconfig| y |defconfig | self_protection | OK
CONFIG_X86_SMAP |kconfig| y |defconfig | self_protection | OK
CONFIG_X86_SMAP |kconfig| y |defconfig | self_protection | OK
: version >= 5.19
CONFIG_SYN_COOKIES |kconfig| y |defconfig | self_protection | OK
CONFIG_X86_UMIP |kconfig| y |defconfig | self_protection | OK
CONFIG_PAGE_TABLE_ISOLATION |kconfig| y |defconfig | self_protection | OK
CONFIG_RANDOMIZE_MEMORY |kconfig| y |defconfig | self_protection | OK
CONFIG_INTEL_IOMMU |kconfig| y |defconfig | self_protection | OK
CONFIG_AMD_IOMMU |kconfig| y |defconfig | self_protection | OK
CONFIG_SECURITY_DMESG_RESTRICT |kconfig| y | kspp | self_protection | FAIL: "is not set"
CONFIG_BUG_ON_DATA_CORRUPTION |kconfig| y | kspp | self_protection | OK
CONFIG_DEBUG_WX |kconfig| y | kspp | self_protection | OK
CONFIG_SCHED_STACK_END_CHECK |kconfig| y | kspp | self_protection | OK
...
...
@@ -135,8 +135,9 @@ CONFIG_GCC_PLUGIN_LATENT_ENTROPY |kconfig| y | kspp | self_p
CONFIG_KFENCE |kconfig| y | kspp | self_protection | OK
CONFIG_WERROR |kconfig| y | kspp | self_protection | FAIL: "is not set"
CONFIG_IOMMU_DEFAULT_DMA_STRICT |kconfig| y | kspp | self_protection | FAIL: "is not set"
CONFIG_IOMMU_DEFAULT_PASSTHROUGH |kconfig| is not set | kspp | self_protection | OK
CONFIG_ZERO_CALL_USED_REGS |kconfig| y | kspp | self_protection | FAIL: "is not set"
CONFIG_
GCC_PLUGIN_RANDSTRUCT
|kconfig| y | kspp | self_protection | FAIL: "is not set"
CONFIG_
RANDSTRUCT_FULL
|kconfig| y | kspp | self_protection | FAIL: "is not set"
CONFIG_HARDENED_USERCOPY |kconfig| y | kspp | self_protection | OK
CONFIG_HARDENED_USERCOPY_FALLBACK |kconfig| is not set | kspp | self_protection | OK: not found
CONFIG_HARDENED_USERCOPY_PAGESPAN |kconfig| is not set | kspp | self_protection | OK: not found
...
...
@@ -144,10 +145,10 @@ CONFIG_MODULE_SIG |kconfig| y | kspp | self_p
CONFIG_MODULE_SIG_ALL |kconfig| y | kspp | self_protection | OK
CONFIG_MODULE_SIG_SHA512 |kconfig| y | kspp | self_protection | OK
CONFIG_MODULE_SIG_FORCE |kconfig| y | kspp | self_protection | FAIL: "is not set"
CONFIG_INIT_STACK_ALL_ZERO |kconfig| y | kspp | self_protection | FAIL:
not found
CONFIG_INIT_STACK_ALL_ZERO |kconfig| y | kspp | self_protection | FAIL:
"is not set"
CONFIG_INIT_ON_FREE_DEFAULT_ON |kconfig| y | kspp | self_protection | FAIL: "is not set"
CONFIG_GCC_PLUGIN_STACKLEAK |kconfig| y | kspp | self_protection | FAIL: "is not set"
CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT |kconfig| y | kspp | self_protection |
FAIL: "is not set"
CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT |kconfig| y | kspp | self_protection |
OK
CONFIG_SCHED_CORE |kconfig| y | kspp | self_protection | OK
CONFIG_DEFAULT_MMAP_MIN_ADDR |kconfig| 65536 | kspp | self_protection | OK
CONFIG_UBSAN_BOUNDS |kconfig| y |maintainer| self_protection | FAIL: not found
...
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@@ -157,18 +158,19 @@ CONFIG_DEBUG_VIRTUAL |kconfig| y | clipos | self_p
CONFIG_STATIC_USERMODEHELPER |kconfig| y | clipos | self_protection | FAIL: "is not set"
CONFIG_EFI_DISABLE_PCI_DMA |kconfig| y | clipos | self_protection | FAIL: "is not set"
CONFIG_SLAB_MERGE_DEFAULT |kconfig| is not set | clipos | self_protection | OK
CONFIG_RANDOM_TRUST_BOOTLOADER |kconfig| is not set | clipos | self_protection |
OK
CONFIG_RANDOM_TRUST_BOOTLOADER |kconfig| is not set | clipos | self_protection |
FAIL: "y"
CONFIG_RANDOM_TRUST_CPU |kconfig| is not set | clipos | self_protection | FAIL: "y"
CONFIG_
GCC_PLUGIN_RANDSTRUCT_PERFORMANCE|kconfig| is not set | clipos | self_protection | FAIL: CONFIG_GCC_PLUGIN_RANDSTRUCT
not "y"
CONFIG_
RANDSTRUCT_PERFORMANCE |kconfig| is not set | clipos | self_protection | FAIL: CONFIG_RANDSTRUCT_FULL
not "y"
CONFIG_STACKLEAK_METRICS |kconfig| is not set | clipos | self_protection | FAIL: CONFIG_GCC_PLUGIN_STACKLEAK not "y"
CONFIG_STACKLEAK_RUNTIME_DISABLE |kconfig| is not set | clipos | self_protection | FAIL: CONFIG_GCC_PLUGIN_STACKLEAK not "y"
CONFIG_INTEL_IOMMU_DEFAULT_ON |kconfig| y | clipos | self_protection | FAIL: "is not set"
CONFIG_INTEL_IOMMU_SVM |kconfig| y | clipos | self_protection | OK
CONFIG_RESET_ATTACK_MITIGATION |kconfig| y | my | self_protection | FAIL: "is not set"
CONFIG_SLS |kconfig| y | my | self_protection |
FAIL: not found
CONFIG_SLS |kconfig| y | my | self_protection |
OK
CONFIG_AMD_IOMMU_V2 |kconfig| y | my | self_protection | FAIL: "m"
CONFIG_SECURITY |kconfig| y |defconfig | security_policy | OK
CONFIG_SECURITY_YAMA |kconfig| y | kspp | security_policy | OK
CONFIG_SECURITY_LANDLOCK |kconfig| y | kspp | security_policy | OK
CONFIG_SECURITY_SELINUX_DISABLE |kconfig| is not set | kspp | security_policy | OK
CONFIG_SECURITY_LOCKDOWN_LSM |kconfig| y | clipos | security_policy | OK
CONFIG_SECURITY_LOCKDOWN_LSM_EARLY |kconfig| y | clipos | security_policy | OK
...
...
@@ -181,6 +183,7 @@ CONFIG_BPF_UNPRIV_DEFAULT_OFF |kconfig| y |defconfig |cut_att
CONFIG_SECCOMP |kconfig| y |defconfig |cut_attack_surface| OK
CONFIG_SECCOMP_FILTER |kconfig| y |defconfig |cut_attack_surface| OK
CONFIG_STRICT_DEVMEM |kconfig| y |defconfig |cut_attack_surface| OK
CONFIG_SECURITY_DMESG_RESTRICT |kconfig| y | kspp |cut_attack_surface| FAIL: "is not set"
CONFIG_ACPI_CUSTOM_METHOD |kconfig| is not set | kspp |cut_attack_surface| OK
CONFIG_COMPAT_BRK |kconfig| is not set | kspp |cut_attack_surface| OK
CONFIG_DEVKMEM |kconfig| is not set | kspp |cut_attack_surface| OK: not found
...
...
@@ -192,7 +195,7 @@ CONFIG_PROC_KCORE |kconfig| is not set | kspp |cut_att
CONFIG_LEGACY_PTYS |kconfig| is not set | kspp |cut_attack_surface| OK
CONFIG_HIBERNATION |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y"
CONFIG_IA32_EMULATION |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y"
CONFIG_X86_X32 |kconfig| is not set | kspp |cut_attack_surface| OK
CONFIG_X86_X32 |kconfig| is not set | kspp |cut_attack_surface| OK
: not found
CONFIG_MODIFY_LDT_SYSCALL |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y"
CONFIG_OABI_COMPAT |kconfig| is not set | kspp |cut_attack_surface| OK: not found
CONFIG_X86_MSR |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y"
...
...
@@ -242,7 +245,7 @@ CONFIG_DRM_LEGACY |kconfig| is not set |maintainer|cut_att
CONFIG_FB |kconfig| is not set |maintainer|cut_attack_surface| FAIL: "y"
CONFIG_VT |kconfig| is not set |maintainer|cut_attack_surface| FAIL: "y"
CONFIG_BLK_DEV_FD |kconfig| is not set |maintainer|cut_attack_surface| FAIL: "m"
CONFIG_BLK_DEV_FD_RAWCMD |kconfig| is not set |maintainer|cut_attack_surface| OK
: not found
CONFIG_BLK_DEV_FD_RAWCMD |kconfig| is not set |maintainer|cut_attack_surface| OK
CONFIG_AIO |kconfig| is not set |grapheneos|cut_attack_surface| FAIL: "y"
CONFIG_STAGING |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y"
CONFIG_KSM |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y"
...
...
@@ -272,9 +275,24 @@ CONFIG_INPUT_EVBUG |kconfig| is not set | my |cut_att
CONFIG_KGDB |kconfig| is not set | my |cut_attack_surface| FAIL: "y"
CONFIG_INTEGRITY |kconfig| y |defconfig | harden_userspace | OK
CONFIG_ARCH_MMAP_RND_BITS |kconfig| 32 | clipos | harden_userspace | FAIL: "28"
rodata |cmdline| 1 |defconfig | self_protection | OK: rodata not found
init_on_alloc |cmdline| 1 | kspp | self_protection | FAIL: not found
init_on_free |cmdline| 1 | kspp | self_protection | FAIL: not found
slab_nomerge |cmdline| | kspp | self_protection | OK: CONFIG_SLAB_MERGE_DEFAULT "is not set"
iommu.strict |cmdline| 1 | kspp | self_protection | FAIL: not found
iommu.passthrough |cmdline| 0 | kspp | self_protection | OK: CONFIG_IOMMU_DEFAULT_PASSTHROUGH "is not set"
nokaslr |cmdline| is not set | kspp | self_protection | OK: not found
hardened_usercopy |cmdline| 1 | kspp | self_protection | OK: CONFIG_HARDENED_USERCOPY "y"
slab_common.usercopy_fallback |cmdline| 0 | kspp | self_protection | OK: CONFIG_HARDENED_USERCOPY_FALLBACK not found
randomize_kstack_offset |cmdline| 1 | kspp | self_protection | OK: CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT "y"
pti |cmdline| on | kspp | self_protection | FAIL: not found
page_alloc.shuffle |cmdline| 1 | clipos | self_protection | FAIL: not found
nosmep |cmdline| is not set | my | self_protection | OK: not found
nosmap |cmdline| is not set | my | self_protection | OK: not found
vsyscall |cmdline| none | kspp |cut_attack_surface| FAIL: not found
debugfs |cmdline| off | grsec |cut_attack_surface| FAIL: not found
[+] Config check is finished: 'OK' -
82 / 'FAIL' - 94
[+] Config check is finished: 'OK' -
94 / 'FAIL' - 99
```
## kconfig-hardened-check versioning
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