From: Alexander Popov Date: Sat, 16 Nov 2024 18:12:51 +0000 (+0300) Subject: Update README X-Git-Url: https://jxself.org/git/?a=commitdiff_plain;ds=inline;p=kconfig-hardened-check.git Update README --- diff --git a/README.md b/README.md index 997d517..0b62a2f 100644 --- a/README.md +++ b/README.md @@ -75,8 +75,9 @@ Some Linux distributions also provide `kernel-hardening-checker` as a package. ## Usage ``` +./bin/kernel-hardening-checker -h usage: kernel-hardening-checker [-h] [--version] [-m {verbose,json,show_ok,show_fail}] - [-c CONFIG] [-l CMDLINE] [-s SYSCTL] [-v KERNEL_VERSION] + [-a] [-c CONFIG] [-v KERNEL_VERSION] [-l CMDLINE] [-s SYSCTL] [-p {X86_64,X86_32,ARM64,ARM}] [-g {X86_64,X86_32,ARM64,ARM}] @@ -87,18 +88,20 @@ options: --version show program's version number and exit -m {verbose,json,show_ok,show_fail}, --mode {verbose,json,show_ok,show_fail} choose the report mode + -a, --autodetect autodetect and check the security hardening options + of the running kernel -c CONFIG, --config CONFIG - check the security hardening options in the kernel Kconfig file + check the security hardening options in the Kconfig file (also supports *.gz files) + -v KERNEL_VERSION, --kernel-version KERNEL_VERSION + extract version from the kernel version file (contents of + /proc/version) instead of Kconfig file -l CMDLINE, --cmdline CMDLINE check the security hardening options in the kernel cmdline file (contents of /proc/cmdline) -s SYSCTL, --sysctl SYSCTL check the security hardening options in the sysctl output file (`sudo sysctl -a > file`) - -v KERNEL_VERSION, --kernel-version KERNEL_VERSION - extract the version from the kernel version file (contents of - /proc/version) -p {X86_64,X86_32,ARM64,ARM}, --print {X86_64,X86_32,ARM64,ARM} print the security hardening recommendations for the selected microarchitecture @@ -124,15 +127,18 @@ CONFIG_DEVMEM |kconfig| is not set | kspp |cut_att - `-m show_ok` for showing only the successful checks - `-m json` for printing the results in JSON format (for combining `kernel-hardening-checker` with other tools) -## Example output for `Ubuntu 22.04` kernel configuration +## Example output ``` -$ ./bin/kernel-hardening-checker -c kernel_hardening_checker/config_files/distros/ubuntu-22.04.config -l /proc/cmdline -s kernel_hardening_checker/config_files/distros/example_sysctls.txt -[+] Kconfig file to check: kernel_hardening_checker/config_files/distros/ubuntu-22.04.config -[+] Kernel cmdline file to check: /proc/cmdline -[+] Sysctl output file to check: kernel_hardening_checker/config_files/distros/example_sysctls.txt +$ ./bin/kernel-hardening-checker -a +[+] Going to autodetect and check the security hardening options of the running kernel +[+] Detected version of the running kernel: (6, 5, 0) +[+] Detected kconfig file of the running kernel: /boot/config-6.5.0-1025-azure +[+] Detected cmdline parameters of the running kernel: /proc/cmdline +[+] Saved sysctl output to /tmp/sysctl-n7hd4ab2 [+] Detected microarchitecture: X86_64 -[+] Detected kernel version: (5, 15, 0) -[+] Detected compiler: GCC 110200 +[+] Detected compiler: GCC 110400 +[!] WARNING: cmdline option "console" is found multiple times +[!] WARNING: sysctl options available for root are not found in /tmp/sysctl-n7hd4ab2, try checking the output of `sudo sysctl -a` ========================================================================================================================= option_name | type |desired_val | decision | reason | check_result ========================================================================================================================= @@ -146,7 +152,7 @@ CONFIG_STRICT_KERNEL_RWX |kconfig| y |defconfig | self_p CONFIG_STRICT_MODULE_RWX |kconfig| y |defconfig | self_protection | OK CONFIG_REFCOUNT_FULL |kconfig| y |defconfig | self_protection | OK: version >= (5, 4, 208) CONFIG_INIT_STACK_ALL_ZERO |kconfig| y |defconfig | self_protection | FAIL: is not found -CONFIG_CPU_MITIGATIONS |kconfig| y |defconfig | self_protection | FAIL: is not found +CONFIG_CPU_MITIGATIONS |kconfig| y |defconfig | self_protection | OK: CONFIG_SPECULATION_MITIGATIONS is "y" CONFIG_RANDOMIZE_BASE |kconfig| y |defconfig | self_protection | OK CONFIG_VMAP_STACK |kconfig| y |defconfig | self_protection | OK CONFIG_DEBUG_WX |kconfig| y |defconfig | self_protection | OK @@ -156,7 +162,7 @@ CONFIG_SYN_COOKIES |kconfig| y |defconfig | self_p CONFIG_MICROCODE |kconfig| y |defconfig | self_protection | OK CONFIG_MICROCODE_INTEL |kconfig| y |defconfig | self_protection | OK CONFIG_MICROCODE_AMD |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, 0) CONFIG_X86_UMIP |kconfig| y |defconfig | self_protection | OK CONFIG_X86_MCE_INTEL |kconfig| y |defconfig | self_protection | OK CONFIG_X86_MCE_AMD |kconfig| y |defconfig | self_protection | OK @@ -164,12 +170,11 @@ CONFIG_MITIGATION_RETPOLINE |kconfig| y |defconfig | self_p CONFIG_MITIGATION_RFDS |kconfig| y |defconfig | self_protection | FAIL: is not found CONFIG_MITIGATION_SPECTRE_BHI |kconfig| y |defconfig | self_protection | FAIL: is not found CONFIG_RANDOMIZE_MEMORY |kconfig| y |defconfig | self_protection | OK -CONFIG_X86_KERNEL_IBT |kconfig| y |defconfig | self_protection | FAIL: is not found +CONFIG_X86_KERNEL_IBT |kconfig| y |defconfig | self_protection | FAIL: "is not set" CONFIG_MITIGATION_PAGE_TABLE_ISOLATION |kconfig| y |defconfig | self_protection | OK: CONFIG_PAGE_TABLE_ISOLATION is "y" -CONFIG_MITIGATION_SRSO |kconfig| y |defconfig | self_protection | FAIL: is not found +CONFIG_MITIGATION_SRSO |kconfig| y |defconfig | self_protection | OK: CONFIG_CPU_SRSO is "y" CONFIG_INTEL_IOMMU |kconfig| y |defconfig | self_protection | OK CONFIG_AMD_IOMMU |kconfig| y |defconfig | self_protection | OK -CONFIG_LIST_HARDENED |kconfig| y | kspp | self_protection | FAIL: is not found CONFIG_RANDOM_KMALLOC_CACHES |kconfig| y | kspp | self_protection | FAIL: is not found CONFIG_SLAB_MERGE_DEFAULT |kconfig| is not set | kspp | self_protection | FAIL: "y" CONFIG_BUG_ON_DATA_CORRUPTION |kconfig| y | kspp | self_protection | FAIL: "is not set" @@ -177,7 +182,6 @@ CONFIG_SLAB_FREELIST_HARDENED |kconfig| y | kspp | self_p CONFIG_SLAB_FREELIST_RANDOM |kconfig| y | kspp | self_protection | OK CONFIG_SHUFFLE_PAGE_ALLOCATOR |kconfig| y | kspp | self_protection | OK CONFIG_FORTIFY_SOURCE |kconfig| y | kspp | self_protection | OK -CONFIG_DEBUG_LIST |kconfig| y | kspp | self_protection | FAIL: "is not set" CONFIG_DEBUG_VIRTUAL |kconfig| y | kspp | self_protection | FAIL: "is not set" CONFIG_DEBUG_SG |kconfig| y | kspp | self_protection | FAIL: "is not set" CONFIG_INIT_ON_ALLOC_DEFAULT_ON |kconfig| y | kspp | self_protection | OK @@ -186,15 +190,16 @@ CONFIG_SCHED_CORE |kconfig| y | kspp | self_p CONFIG_SECURITY_LOCKDOWN_LSM |kconfig| y | kspp | self_protection | OK CONFIG_SECURITY_LOCKDOWN_LSM_EARLY |kconfig| y | kspp | self_protection | OK CONFIG_LOCK_DOWN_KERNEL_FORCE_CONFIDENTIALITY|kconfig| y | kspp | self_protection | FAIL: "is not set" -CONFIG_DEBUG_CREDENTIALS |kconfig| y | kspp | self_protection | FAIL: "is not set" +CONFIG_LIST_HARDENED |kconfig| y | kspp | self_protection | FAIL: is not found +CONFIG_DEBUG_CREDENTIALS |kconfig| y | kspp | self_protection | FAIL: is not found CONFIG_DEBUG_NOTIFIERS |kconfig| y | kspp | self_protection | FAIL: "is not set" CONFIG_SCHED_STACK_END_CHECK |kconfig| y | kspp | self_protection | OK CONFIG_KFENCE |kconfig| y | kspp | self_protection | OK CONFIG_KFENCE_SAMPLE_INTERVAL |kconfig| 100 | kspp | self_protection | FAIL: "0" CONFIG_RANDSTRUCT_FULL |kconfig| y | kspp | self_protection | FAIL: is not found CONFIG_HARDENED_USERCOPY |kconfig| y | kspp | self_protection | OK -CONFIG_HARDENED_USERCOPY_FALLBACK |kconfig| is not set | kspp | self_protection | OK -CONFIG_HARDENED_USERCOPY_PAGESPAN |kconfig| is not set | kspp | self_protection | OK +CONFIG_HARDENED_USERCOPY_FALLBACK |kconfig| is not set | kspp | self_protection | OK: is not found +CONFIG_HARDENED_USERCOPY_PAGESPAN |kconfig| is not set | kspp | self_protection | OK: is not found CONFIG_GCC_PLUGIN_LATENT_ENTROPY |kconfig| y | kspp | self_protection | FAIL: is not found CONFIG_MODULE_SIG |kconfig| y | kspp | self_protection | OK CONFIG_MODULE_SIG_ALL |kconfig| y | kspp | self_protection | OK @@ -211,7 +216,7 @@ CONFIG_GCC_PLUGIN_STACKLEAK |kconfig| y | kspp | self_p CONFIG_STACKLEAK_METRICS |kconfig| is not set | kspp | self_protection | FAIL: CONFIG_GCC_PLUGIN_STACKLEAK is not "y" CONFIG_STACKLEAK_RUNTIME_DISABLE |kconfig| is not set | kspp | self_protection | FAIL: CONFIG_GCC_PLUGIN_STACKLEAK is not "y" CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT |kconfig| y | kspp | self_protection | OK -CONFIG_PAGE_TABLE_CHECK |kconfig| y | kspp | self_protection | FAIL: is not found +CONFIG_PAGE_TABLE_CHECK |kconfig| y | kspp | self_protection | FAIL: "is not set" CONFIG_PAGE_TABLE_CHECK_ENFORCED |kconfig| y | kspp | self_protection | FAIL: is not found CONFIG_CFI_CLANG |kconfig| y | kspp | self_protection | FAIL: CONFIG_CC_IS_CLANG is not "y" CONFIG_CFI_PERMISSIVE |kconfig| is not set | kspp | self_protection | FAIL: CONFIG_CC_IS_CLANG is not "y" @@ -220,13 +225,14 @@ CONFIG_DEFAULT_MMAP_MIN_ADDR |kconfig| 65536 | kspp | self_p 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_INTEL_IOMMU_DEFAULT_ON |kconfig| y | kspp | self_protection | OK -CONFIG_MITIGATION_SLS |kconfig| y | kspp | self_protection | FAIL: is not found +CONFIG_MITIGATION_SLS |kconfig| y | kspp | self_protection | OK: CONFIG_SLS is "y" CONFIG_INTEL_IOMMU_SVM |kconfig| y | kspp | self_protection | OK CONFIG_AMD_IOMMU_V2 |kconfig| y | kspp | self_protection | FAIL: "m" +CONFIG_CFI_AUTO_DEFAULT |kconfig| is not set |a13xp0p0v | self_protection | FAIL: CONFIG_CFI_AUTO_DEFAULT is not present 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_SELINUX_DISABLE |kconfig| is not set | kspp | security_policy | OK: is not found CONFIG_SECURITY_SELINUX_BOOTPARAM |kconfig| is not set | kspp | security_policy | FAIL: "y" CONFIG_SECURITY_SELINUX_DEVELOP |kconfig| is not set | kspp | security_policy | FAIL: "y" CONFIG_SECURITY_WRITABLE_HOOKS |kconfig| is not set | kspp | security_policy | OK: is not found @@ -249,12 +255,12 @@ CONFIG_LEGACY_PTYS |kconfig| is not set | kspp |cut_att CONFIG_HIBERNATION |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y" CONFIG_COMPAT |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| FAIL: "y" -CONFIG_X86_X32_ABI |kconfig| is not set | kspp |cut_attack_surface| OK: is not found +CONFIG_X86_X32 |kconfig| is not set | kspp |cut_attack_surface| OK: is not found +CONFIG_X86_X32_ABI |kconfig| is not set | kspp |cut_attack_surface| OK 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: is not found CONFIG_X86_MSR |kconfig| is not set | kspp |cut_attack_surface| FAIL: "m" -CONFIG_LEGACY_TIOCSTI |kconfig| is not set | kspp |cut_attack_surface| OK: is not found +CONFIG_LEGACY_TIOCSTI |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y" CONFIG_MODULE_FORCE_LOAD |kconfig| is not set | kspp |cut_attack_surface| OK CONFIG_MODULES |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y" CONFIG_DEVMEM |kconfig| is not set | kspp |cut_attack_surface| FAIL: "y" @@ -265,9 +271,9 @@ CONFIG_COMPAT_VDSO |kconfig| is not set | kspp |cut_att CONFIG_DRM_LEGACY |kconfig| is not set |maintainer|cut_attack_surface| OK 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 |kconfig| is not set |maintainer|cut_attack_surface| OK CONFIG_BLK_DEV_FD_RAWCMD |kconfig| is not set |maintainer|cut_attack_surface| OK: is not found -CONFIG_NOUVEAU_LEGACY_CTX_SUPPORT |kconfig| is not set |maintainer|cut_attack_surface| OK +CONFIG_NOUVEAU_LEGACY_CTX_SUPPORT |kconfig| is not set |maintainer|cut_attack_surface| OK: is not found CONFIG_N_GSM |kconfig| is not set |maintainer|cut_attack_surface| FAIL: "m" CONFIG_ZSMALLOC_STAT |kconfig| is not set | grsec |cut_attack_surface| OK CONFIG_DEBUG_KMEMLEAK |kconfig| is not set | grsec |cut_attack_surface| OK @@ -291,12 +297,12 @@ CONFIG_DEBUG_FS |kconfig| is not set | grsec |cut_att CONFIG_NOTIFIER_ERROR_INJECTION |kconfig| is not set | grsec |cut_attack_surface| FAIL: "m" CONFIG_FAIL_FUTEX |kconfig| is not set | grsec |cut_attack_surface| OK: is not found CONFIG_PUNIT_ATOM_DEBUG |kconfig| is not set | grsec |cut_attack_surface| FAIL: "m" -CONFIG_ACPI_CONFIGFS |kconfig| is not set | grsec |cut_attack_surface| FAIL: "m" +CONFIG_ACPI_CONFIGFS |kconfig| is not set | grsec |cut_attack_surface| OK CONFIG_EDAC_DEBUG |kconfig| is not set | grsec |cut_attack_surface| OK CONFIG_DRM_I915_DEBUG |kconfig| is not set | grsec |cut_attack_surface| OK CONFIG_DVB_C8SECTPFE |kconfig| is not set | grsec |cut_attack_surface| OK: is not found -CONFIG_MTD_SLRAM |kconfig| is not set | grsec |cut_attack_surface| FAIL: "m" -CONFIG_MTD_PHRAM |kconfig| is not set | grsec |cut_attack_surface| FAIL: "m" +CONFIG_MTD_SLRAM |kconfig| is not set | grsec |cut_attack_surface| OK: is not found +CONFIG_MTD_PHRAM |kconfig| is not set | grsec |cut_attack_surface| OK: is not found CONFIG_IO_URING |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y" CONFIG_KCMP |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y" CONFIG_RSEQ |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y" @@ -305,10 +311,10 @@ CONFIG_KCOV |kconfig| is not set | grsec |cut_att CONFIG_PROVIDE_OHCI1394_DMA_INIT |kconfig| is not set | grsec |cut_attack_surface| OK CONFIG_SUNRPC_DEBUG |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y" CONFIG_X86_16BIT |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y" -CONFIG_BLK_DEV_UBLK |kconfig| is not set | grsec |cut_attack_surface| OK: is not found +CONFIG_BLK_DEV_UBLK |kconfig| is not set | grsec |cut_attack_surface| FAIL: "m" CONFIG_SMB_SERVER |kconfig| is not set | grsec |cut_attack_surface| FAIL: "m" CONFIG_XFS_ONLINE_SCRUB_STATS |kconfig| is not set | grsec |cut_attack_surface| OK: is not found -CONFIG_CACHESTAT_SYSCALL |kconfig| is not set | grsec |cut_attack_surface| OK: is not found +CONFIG_CACHESTAT_SYSCALL |kconfig| is not set | grsec |cut_attack_surface| FAIL: "y" CONFIG_PREEMPTIRQ_TRACEPOINTS |kconfig| is not set | grsec |cut_attack_surface| OK: is not found CONFIG_ENABLE_DEFAULT_TRACERS |kconfig| is not set | grsec |cut_attack_surface| OK: is not found CONFIG_PROVE_LOCKING |kconfig| is not set | grsec |cut_attack_surface| OK @@ -330,7 +336,7 @@ CONFIG_CRASH_DUMP |kconfig| is not set | clipos |cut_att CONFIG_USER_NS |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y" CONFIG_X86_CPUID |kconfig| is not set | clipos |cut_attack_surface| FAIL: "m" CONFIG_X86_IOPL_IOPERM |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y" -CONFIG_ACPI_TABLE_UPGRADE |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y" +CONFIG_ACPI_TABLE_UPGRADE |kconfig| is not set | clipos |cut_attack_surface| OK CONFIG_EFI_CUSTOM_SSDT_OVERLAYS |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y" CONFIG_AIO |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y" CONFIG_MAGIC_SYSRQ |kconfig| is not set | clipos |cut_attack_surface| FAIL: "y" @@ -351,10 +357,12 @@ CONFIG_BLK_DEV_WRITE_MOUNTED |kconfig| is not set |a13xp0p0v |cut_att CONFIG_FAULT_INJECTION |kconfig| is not set |a13xp0p0v |cut_attack_surface| OK CONFIG_ARM_PTDUMP_DEBUGFS |kconfig| is not set |a13xp0p0v |cut_attack_surface| OK: is not found CONFIG_ARM_PTDUMP |kconfig| is not set |a13xp0p0v |cut_attack_surface| OK: is not found -CONFIG_LKDTM |kconfig| is not set |a13xp0p0v |cut_attack_surface| OK +CONFIG_SECCOMP_CACHE_DEBUG |kconfig| is not set |a13xp0p0v |cut_attack_surface| OK +CONFIG_LKDTM |kconfig| is not set |a13xp0p0v |cut_attack_surface| OK: is not found CONFIG_TRIM_UNUSED_KSYMS |kconfig| y |a13xp0p0v |cut_attack_surface| FAIL: "is not set" CONFIG_COREDUMP |kconfig| is not set | clipos | harden_userspace | FAIL: "y" -CONFIG_ARCH_MMAP_RND_BITS |kconfig| 32 |a13xp0p0v | harden_userspace | FAIL: "28" +CONFIG_ARCH_MMAP_RND_BITS |kconfig| 32 |a13xp0p0v | harden_userspace | OK +CONFIG_ARCH_MMAP_RND_COMPAT_BITS |kconfig| 16 |a13xp0p0v | harden_userspace | OK CONFIG_X86_USER_SHADOW_STACK |kconfig| y | kspp | harden_userspace | FAIL: is not found nosmep |cmdline| is not set |defconfig | self_protection | OK: is not found nosmap |cmdline| is not set |defconfig | self_protection | OK: is not found @@ -385,7 +393,6 @@ rodata |cmdline| on |defconfig | self_p slab_merge |cmdline| is not set | kspp | self_protection | OK: is not found slub_merge |cmdline| is not set | kspp | self_protection | OK: is not found page_alloc.shuffle |cmdline| 1 | kspp | self_protection | FAIL: is not found -cfi |cmdline| kcfi | kspp | self_protection | FAIL: is not found slab_nomerge |cmdline| is present | kspp | self_protection | FAIL: is not present init_on_alloc |cmdline| 1 | kspp | self_protection | OK: CONFIG_INIT_ON_ALLOC_DEFAULT_ON is "y" init_on_free |cmdline| 1 | kspp | self_protection | FAIL: is not found @@ -397,6 +404,7 @@ iommu.passthrough |cmdline| 0 | kspp | self_p randomize_kstack_offset |cmdline| 1 | kspp | self_protection | OK: CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT is "y" mitigations |cmdline| auto,nosmt | kspp | self_protection | FAIL: is not found pti |cmdline| on | kspp | self_protection | FAIL: is not found +cfi |cmdline| kcfi | kspp | self_protection | FAIL: is not found iommu |cmdline| force | clipos | self_protection | FAIL: is not found tsx |cmdline| off |defconfig |cut_attack_surface| OK: CONFIG_X86_INTEL_TSX_MODE_OFF is "y" nosmt |cmdline| is present | kspp |cut_attack_surface| FAIL: is not present @@ -407,20 +415,21 @@ sysrq_always_enabled |cmdline| is not set |grapheneos|cut_att bdev_allow_write_mounted |cmdline| 0 |a13xp0p0v |cut_attack_surface| OK: CONFIG_BLK_DEV_WRITE_MOUNTED is not found ia32_emulation |cmdline| 0 |a13xp0p0v |cut_attack_surface| FAIL: is not found norandmaps |cmdline| is not set |defconfig | harden_userspace | OK: is not found -net.core.bpf_jit_harden |sysctl | 2 | kspp | self_protection | FAIL: "0" -kernel.oops_limit |sysctl | 100 |a13xp0p0v | self_protection | FAIL: is not found -kernel.warn_limit |sysctl | 100 |a13xp0p0v | self_protection | FAIL: is not found +net.core.bpf_jit_harden |sysctl | 2 | kspp | self_protection | FAIL: is not found +kernel.oops_limit |sysctl | 100 |a13xp0p0v | self_protection | FAIL: "10000" +kernel.warn_limit |sysctl | 100 |a13xp0p0v | self_protection | FAIL: "0" +vm.mmap_min_addr |sysctl | 65536 | kspp | self_protection | OK kernel.dmesg_restrict |sysctl | 1 | kspp |cut_attack_surface| OK kernel.perf_event_paranoid |sysctl | 3 | kspp |cut_attack_surface| FAIL: "4" -user.max_user_namespaces |sysctl | 0 | kspp |cut_attack_surface| FAIL: "31231" +user.max_user_namespaces |sysctl | 0 | kspp |cut_attack_surface| FAIL: "63899" dev.tty.ldisc_autoload |sysctl | 0 | kspp |cut_attack_surface| FAIL: "1" kernel.kptr_restrict |sysctl | 2 | kspp |cut_attack_surface| FAIL: "1" -dev.tty.legacy_tiocsti |sysctl | 0 | kspp |cut_attack_surface| FAIL: is not found +dev.tty.legacy_tiocsti |sysctl | 0 | kspp |cut_attack_surface| FAIL: "1" kernel.kexec_load_disabled |sysctl | 1 | kspp |cut_attack_surface| FAIL: "0" kernel.unprivileged_bpf_disabled |sysctl | 1 | kspp |cut_attack_surface| FAIL: "2" vm.unprivileged_userfaultfd |sysctl | 0 | kspp |cut_attack_surface| OK kernel.modules_disabled |sysctl | 1 | kspp |cut_attack_surface| FAIL: "0" -kernel.io_uring_disabled |sysctl | 2 | grsec |cut_attack_surface| FAIL: is not found +kernel.io_uring_disabled |sysctl | 2 | grsec |cut_attack_surface| FAIL: "0" kernel.sysrq |sysctl | 0 |a13xp0p0v |cut_attack_surface| FAIL: "176" fs.protected_symlinks |sysctl | 1 | kspp | harden_userspace | OK fs.protected_hardlinks |sysctl | 1 | kspp | harden_userspace | OK @@ -429,8 +438,10 @@ fs.protected_regular |sysctl | 2 | kspp | harden fs.suid_dumpable |sysctl | 0 | kspp | harden_userspace | FAIL: "2" kernel.randomize_va_space |sysctl | 2 | kspp | harden_userspace | OK kernel.yama.ptrace_scope |sysctl | 3 | kspp | harden_userspace | FAIL: "1" +vm.mmap_rnd_bits |sysctl | 32 |a13xp0p0v | harden_userspace | FAIL: is not found +vm.mmap_rnd_compat_bits |sysctl | 16 |a13xp0p0v | harden_userspace | FAIL: is not found -[+] Config check is finished: 'OK' - 135 / 'FAIL' - 158 +[+] Config check is finished: 'OK' - 145 / 'FAIL' - 153 ``` ## Generating a Kconfig fragment with the security hardening options