debian-cis/bin/hardening/1.1.21_sticky_bit_world_writable_folder.sh
Charles Herlin 0b85d16c16 First batch of renaming to comply to comply to 8v2 and 9 pdf
renamed:    2.19_disable_freevxfs.sh -> 1.1.1.1_disable_freevxfs.sh
	renamed:    2.20_disable_jffs2.sh -> 1.1.1.2_disable_jffs2.sh
	renamed:    2.21_disable_hfs.sh -> 1.1.1.3_disable_hfs.sh
	renamed:    2.22_disable_hfsplus.sh -> 1.1.1.4_disable_hfsplus.sh
	renamed:    2.24_disable_udf.sh -> 1.1.1.5_disable_udf.sh
	renamed:    2.7_var_log_partition.sh -> 1.1.11_var_log_partition.sh
	renamed:    2.8_var_log_audit_partition.sh -> 1.1.12_var_log_audit_partition.sh
	renamed:    2.9_home_partition.sh -> 1.1.13_home_partition.sh
	renamed:    2.10_home_nodev.sh -> 1.1.14_home_nodev.sh
	renamed:    2.14_run_shm_nodev.sh -> 1.1.15_run_shm_nodev.sh
	renamed:    2.15_run_shm_nosuid.sh -> 1.1.16_run_shm_nosuid.sh
	renamed:    2.16_run_shm_noexec.sh -> 1.1.17_run_shm_noexec.sh
	renamed:    2.11_removable_device_nodev.sh -> 1.1.18_removable_device_nodev.sh
	renamed:    2.13_removable_device_nosuid.sh -> 1.1.19_removable_device_nosuid.sh
	renamed:    2.12_removable_device_noexec.sh -> 1.1.20_removable_device_noexec.sh
	renamed:    2.17_sticky_bit_world_writable_folder.sh -> 1.1.21_sticky_bit_world_writable_folder.sh
	renamed:    2.25_disable_automounting.sh -> 1.1.22_disable_automounting.sh
	renamed:    2.1_tmp_partition.sh -> 1.1.2_tmp_partition.sh
	renamed:    2.2_tmp_nodev.sh -> 1.1.3_tmp_nodev.sh
	renamed:    2.3_tmp_nosuid.sh -> 1.1.4_tmp_nosuid.sh
	renamed:    2.4_tmp_noexec.sh -> 1.1.5_tmp_noexec.sh
	renamed:    2.5_var_partition.sh -> 1.1.6_var_partition.sh
	renamed:    1.1_install_updates.sh -> 1.8_install_updates.sh
2019-08-27 15:30:47 +02:00

64 lines
2.2 KiB
Bash
Executable File

#!/bin/bash
#
# CIS Debian Hardening
#
#
# 1.1.21 Ensure Sticky Bit set on All World-Writable Directories (Scored)
#
set -e # One error, it's over
set -u # One variable unset, it's over
HARDENING_LEVEL=2
DESCRIPTION="Set sticky bit on world writable directories to prevent users from deleting or renaming files that are not owned by them."
# This function will be called if the script status is on enabled / audit mode
audit () {
info "Checking if setuid is set on world writable Directories"
FS_NAMES=$(df --local -P | awk {'if (NR!=1) print $6'} )
RESULT=$( $SUDO_CMD find $FS_NAMES -xdev -type d \( -perm -0002 -a ! -perm -1000 \) -print 2>/dev/null)
if [ ! -z "$RESULT" ]; then
crit "Some world writable directories are not on sticky bit mode!"
FORMATTED_RESULT=$(sed "s/ /\n/g" <<< $RESULT | sort | uniq | tr '\n' ' ')
crit "$FORMATTED_RESULT"
else
ok "All world writable directories have a sticky bit"
fi
}
# This function will be called if the script status is on enabled mode
apply () {
RESULT=$(df --local -P | awk {'if (NR!=1) print $6'} | xargs -I '{}' find '{}' -xdev -type d \( -perm -0002 -a ! -perm -1000 \) -print 2>/dev/null)
if [ ! -z "$RESULT" ]; then
df --local -P | awk {'if (NR!=1) print $6'} | xargs -I '{}' find '{}' -xdev -type d -perm -0002 2>/dev/null | xargs chmod a+t
else
ok "All world writable directories have a sticky bit, nothing to apply"
fi
}
# This function will check config parameters required
check_config() {
# No param for this function
:
}
# Source Root Dir Parameter
if [ -r /etc/default/cis-hardening ]; then
. /etc/default/cis-hardening
fi
if [ -z "$CIS_ROOT_DIR" ]; then
echo "There is no /etc/default/cis-hardening file nor cis-hardening directory in current environment."
echo "Cannot source CIS_ROOT_DIR variable, aborting."
exit 128
fi
# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
if [ -r $CIS_ROOT_DIR/lib/main.sh ]; then
. $CIS_ROOT_DIR/lib/main.sh
else
echo "Cannot find main.sh, have you correctly defined your root directory? Current value is $CIS_ROOT_DIR in /etc/default/cis-hardening"
exit 128
fi