X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=kconfig_hardened_check%2Fchecks.py;h=77645093186e7430a4dbd8ce7812eecc4378edcd;hb=4b97fce50b144ea7a266cf7bdd5cb6f274cfa32a;hp=e30746c9fc0c3af0f4a60ef75a8f8d73b486e7d1;hpb=bb1fc8b96945a06841a55fd56b23666fdbdd8b71;p=kconfig-hardened-check.git

diff --git a/kconfig_hardened_check/checks.py b/kconfig_hardened_check/checks.py
index e30746c..7764509 100644
--- a/kconfig_hardened_check/checks.py
+++ b/kconfig_hardened_check/checks.py
@@ -577,17 +577,12 @@ def normalize_cmdline_options(option, value):
 def add_sysctl_checks(l, arch):
 # TODO: draft of security hardening sysctls:
 #    kernel.kptr_restrict=2 (or 1?)
-#    kernel.perf_event_paranoid=2 (or 3 with a custom patch, see https://lwn.net/Articles/696216/)
-#    kernel.kexec_load_disabled=1
 #    kernel.yama.ptrace_scope=3
-#    user.max_user_namespaces=0 (for Debian, also see kernel.unprivileged_userns_clone)
 #    what about bpf_jit_enable?
-#    kernel.unprivileged_bpf_disabled=1
 #    vm.unprivileged_userfaultfd=0
 #        (at first, it disabled unprivileged userfaultfd,
 #         and since v5.11 it enables unprivileged userfaultfd for user-mode only)
 #    vm.mmap_min_addr has a good value
-#    dev.tty.ldisc_autoload=0
 #    fs.protected_symlinks=1
 #    fs.protected_hardlinks=1
 #    fs.protected_fifos=2
@@ -610,3 +605,8 @@ def add_sysctl_checks(l, arch):
     l += [SysctlCheck('self_protection', 'kspp', 'net.core.bpf_jit_harden', '2')]
 
     l += [SysctlCheck('cut_attack_surface', 'kspp', 'kernel.dmesg_restrict', '1')]
+    l += [SysctlCheck('cut_attack_surface', 'kspp', 'kernel.perf_event_paranoid', '3')] # with a custom patch, see https://lwn.net/Articles/696216/
+    l += [SysctlCheck('cut_attack_surface', 'kspp', 'kernel.kexec_load_disabled', '1')]
+    l += [SysctlCheck('cut_attack_surface', 'kspp', 'user.max_user_namespaces', '0')]
+    l += [SysctlCheck('cut_attack_surface', 'kspp', 'dev.tty.ldisc_autoload', '0')]
+    l += [SysctlCheck('cut_attack_surface', 'kspp', 'kernel.unprivileged_bpf_disabled', '1')]