mirror of
https://github.com/ovh/debian-cis.git
synced 2024-11-25 15:01:22 +01:00
97 lines
3.0 KiB
Bash
Executable File
97 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
#
|
|
# CIS Debian Hardening
|
|
#
|
|
|
|
#
|
|
# 6.2.9 Ensure users own their home directories (Scored)
|
|
#
|
|
|
|
set -e # One error, it's over
|
|
set -u # One variable unset, it's over
|
|
|
|
HARDENING_LEVEL=2
|
|
DESCRIPTION="Ensure users own their home directories"
|
|
|
|
EXCEPTIONS=""
|
|
|
|
ERRORS=0
|
|
|
|
# This function will be called if the script status is on enabled / audit mode
|
|
audit () {
|
|
debug "Checking homedir exists"
|
|
RESULT=$(cat /etc/passwd | awk -F: '{ print $1 ":" $3 ":" $6 }')
|
|
for LINE in $RESULT; do
|
|
debug "Working on $LINE"
|
|
USER=$(awk -F: {'print $1'} <<< $LINE)
|
|
USERID=$(awk -F: {'print $2'} <<< $LINE)
|
|
DIR=$(awk -F: {'print $3'} <<< $LINE)
|
|
if [ $USERID -ge 1000 -a ! -d "$DIR" -a $USER != "nfsnobody" -a $USER != "nobody" -a "$DIR" != "/nonexistent" ]; then
|
|
crit "The home directory ($DIR) of user $USER does not exist."
|
|
ERRORS=$((ERRORS+1))
|
|
fi
|
|
done
|
|
|
|
if [ $ERRORS = 0 ]; then
|
|
ok "All home directories exists"
|
|
fi
|
|
debug "Checking homedir ownership"
|
|
RESULT=$(awk -F: '{ print $1 ":" $3 ":" $6 }' /etc/passwd )
|
|
for LINE in $RESULT; do
|
|
debug "Working on $LINE"
|
|
USER=$(awk -F: '{print $1}' <<< "$LINE")
|
|
USERID=$(awk -F: '{print $2}' <<< "$LINE")
|
|
DIR=$(awk -F: '{print $3}' <<< "$LINE")
|
|
if [ "$USERID" -ge 500 ] && [ -d "$DIR" ] && [ "$USER" != "nfsnobody" ]; then
|
|
OWNER=$(stat -L -c "%U" "$DIR")
|
|
if [ "$OWNER" != "$USER" ]; then
|
|
EXCEP_FOUND=0
|
|
for excep in $EXCEPTIONS; do
|
|
if [ "$DIR:$USER:$OWNER" = "$excep" ]; then
|
|
ok "The home directory ($DIR) of user $USER is owned by $OWNER but is part of exceptions ($DIR:$USER:$OWNER)."
|
|
EXCEP_FOUND=1
|
|
break
|
|
fi
|
|
done
|
|
if [ "$EXCEP_FOUND" -eq 0 ]; then
|
|
crit "The home directory ($DIR) of user $USER is owned by $OWNER."
|
|
ERRORS=$((ERRORS+1))
|
|
fi
|
|
fi
|
|
fi
|
|
done
|
|
|
|
if [ $ERRORS = 0 ]; then
|
|
ok "All home directories have correct ownership"
|
|
fi
|
|
}
|
|
|
|
# This function will be called if the script status is on enabled mode
|
|
apply () {
|
|
info "Modifying home directories may seriously harm your system, report only here"
|
|
}
|
|
|
|
# This function will check config parameters required
|
|
check_config() {
|
|
:
|
|
}
|
|
|
|
# Source Root Dir Parameter
|
|
if [ -r /etc/default/cis-hardening ]; then
|
|
. /etc/default/cis-hardening
|
|
fi
|
|
if [ -z "$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
|