An XCCDF Group - A logical subset of the XCCDF Benchmark
$ mount -t xfs | awk '{print $3}'
$ sudo chmod +t DIR
/boot/System.map-*
$ sudo chmod 0600 /boot/System.map-*
sysfs
procfs
$ findmnt -n -l -k -it $(awk '/nodev/ { print $2 }' /proc/filesystems | paste -sd,)
$ sudo find MOUNTPOINT -xdev -nogroup 2>/dev/null
fs.protected_hardlinks
$ sudo sysctl -w fs.protected_hardlinks=1
/etc/sysctl.d
fs.protected_hardlinks = 1
fs.protected_symlinks
$ sudo sysctl -w fs.protected_symlinks=1
fs.protected_symlinks = 1
passwd
shadow
group
gshadow
/etc/group-
$ sudo chgrp root /etc/group-
/etc/passwd-
$ sudo chgrp root /etc/passwd-
/etc/shadow-
$ sudo chgrp root /etc/shadow-
/etc/group
$ sudo chgrp root /etc/group
/etc/passwd
$ sudo chgrp root /etc/passwd
/etc/shadow
$ sudo chgrp root /etc/shadow
$ sudo chown root /etc/group-
$ sudo chown root /etc/passwd-
$ sudo chown root /etc/shadow-
$ sudo chown root /etc/group
$ sudo chown root /etc/passwd
$ sudo chown root /etc/shadow
$ sudo chmod 0644 /etc/group-
$ sudo chmod 0644 /etc/passwd-
$ sudo chmod 0000 /etc/shadow-
$ sudo chmod 0644 /etc/group
$ sudo chmod 0644 /etc/passwd
$ sudo chmod 0000 /etc/shadow
/var/log
$ sudo chgrp root /var/log
/var/log/messages
$ sudo chgrp root /var/log/messages
/var/log/syslog
$ sudo chgrp adm /var/log/syslog
$ sudo chown root /var/log
$ sudo chown root /var/log/messages
$ sudo chown syslog /var/log/syslog
/bin /sbin /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin
root
$ sudo chown root DIR
/lib /lib64 /usr/lib /usr/lib64
/lib/modules
$ sudo chmod go-w DIR
/bin /sbin /usr/bin /usr/libexec /usr/local/bin /usr/local/sbin /usr/sbin
$ sudo chown root FILE
$ sudo chmod go-w FILE
$ find /lib/modules/`uname -r`/kernel/fs -type f -name '*.ko'
/etc/modprobe.d
autofs
/misc/cd
/etc/fstab
$ sudo systemctl mask --now autofs.service
usb-storage
/etc/modprobe.d/usb-storage.conf
install usb-storage /bin/true
modprobe
insmod
/etc/permissions.local
chkstat
kernel.panic_on_oops
$ sudo sysctl -w kernel.panic_on_oops=1
kernel.panic_on_oops = 1
/etc/security/limits.conf
/etc/security/limits.d/
limits.conf
sysctl
fs.suid_dumpable
ProcessSizeMax
[Coredump]
/etc/systemd/coredump.conf
Storage
none
* hard core 0
$ sudo sysctl -w fs.suid_dumpable=0
fs.suid_dumpable = 0
kernel.exec-shield
kernel.randomize_va_space
kernel.kptr_restrict
$ sudo sysctl -w kernel.kptr_restrict=
kernel.kptr_restrict =
$ sudo sysctl -w kernel.randomize_va_space=2
kernel.randomize_va_space = 2
slub_debug