debian-cis/bin/hardening/12.7_find_world_writable_file.sh
Charles Herlin 71b70a2b8c FEAT: Add sudo_wrapper to catch unauthorized sudo commands
As for now, if a sudo command was not allowed, check might sometimes
pass, resulting compliant state even if it actually is not.
Sudo wrapper first checks wether command is allowed before running it,
otherwise issues a crit message, setting check as not compliant

Fix script to make sudo_wrapper work, split "find" lines
Fix quotes in $@ and $* when running sudo command

Fixed quotes and curly braces with shellcheck report
2018-03-16 12:06:56 +01:00

65 lines
2.0 KiB
Bash
Executable File

#!/bin/bash
#
# CIS Debian 7/8 Hardening
#
#
# 12.7 Find World Writable Files (Not Scored)
#
set -e # One error, it's over
set -u # One variable unset, it's over
HARDENING_LEVEL=3
DESCRIPTION="Find world writable files."
# This function will be called if the script status is on enabled / audit mode
audit () {
info "Checking if there are world writable files"
FS_NAMES=$(df --local -P | awk {'if (NR!=1) print $6'} )
RESULT=$( $SUDO_CMD find $FS_NAMES -xdev -type f -perm -0002 -print 2>/dev/null)
if [ ! -z "$RESULT" ]; then
crit "Some world writable files are present"
FORMATTED_RESULT=$(sed "s/ /\n/g" <<< $RESULT | sort | uniq | tr '\n' ' ')
crit "$FORMATTED_RESULT"
else
ok "No world writable files found"
fi
}
# This function will be called if the script status is on enabled mode
apply () {
RESULT=$(df --local -P | awk {'if (NR!=1) print $6'} | xargs -I '{}' find '{}' -xdev -type f -perm -0002 -print 2>/dev/null)
if [ ! -z "$RESULT" ]; then
warn "chmoding o-w all files in the system"
df --local -P | awk {'if (NR!=1) print $6'} | xargs -I '{}' find '{}' -xdev -type f -perm -0002 -print 2>/dev/null| xargs chmod o-w
else
ok "No world writable files found, nothing to apply"
fi
}
# This function will check config parameters required
check_config() {
# No param for this function
:
}
# Source Root Dir Parameter
if [ -r /etc/default/cis-hardening ]; then
. /etc/default/cis-hardening
fi
if [ -z "$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