Add the 'fs.suid_dumpable' check

diff --git a/kernel_hardening_checker/checks.py b/kernel_hardening_checker/checks.py
index 8e754c02ceabed5b37fe7396456f03a29e6ff198..ca829a3d857b19f3f4fca918195b38cad4b385bb 100644 (file)
--- a/kernel_hardening_checker/checks.py
+++ b/kernel_hardening_checker/checks.py
@@ -580,7 +580,6 @@ def normalize_cmdline_options(option, value):
 # TODO: draft of security hardening sysctls:
 #    what about bpf_jit_enable?
 #    vm.mmap_min_addr has a good value
-#    fs.suid_dumpable=0
 #    kernel.modules_disabled=1
 #    kernel.randomize_va_space=2
 #    nosmt sysfs control file
@@ -616,3 +615,4 @@ def add_sysctl_checks(l, arch):
     l += [SysctlCheck('harden_userspace', 'kspp', 'fs.protected_hardlinks', '1')]
     l += [SysctlCheck('harden_userspace', 'kspp', 'fs.protected_fifos', '2')]
     l += [SysctlCheck('harden_userspace', 'kspp', 'fs.protected_regular', '2')]
+    l += [SysctlCheck('harden_userspace', 'kspp', 'fs.suid_dumpable', '0')]