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8.1.1.3_keep_all_audit_logs.sh 8.1.3_audit_bootloader.sh

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thibault.dewailly 2016-04-14 13:11:56 +02:00
parent ea6361ddb5
commit 47d017908d
6 changed files with 183 additions and 1 deletions
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88
bin/hardening/8.1.1.3_keep_all_audit_logs.sh Executable file
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#!/bin/bash
#
# CIS Debian 7 Hardening
# Authors : Thibault Dewailly, OVH <thibault.dewailly@corp.ovh.com>
#
#
# 8.1.1.3 Keep All Auditing Information (Scored)
#
set -e # One error, it's over
set -u # One variable unset, it's over
FILE='/etc/audit/auditd.conf'
OPTIONS='max_log_file_action=keep_logs'
# This function will be called if the script status is on enabled / audit mode
audit () {
does_file_exist $FILE
if [ $FNRET != 0 ]; then
crit "$FILE does not exist"
else
ok "$FILE exist, checking configuration"
for AUDIT_OPTION in $OPTIONS; do
AUDIT_PARAM=$(echo $AUDIT_OPTION | cut -d= -f 1)
AUDIT_VALUE=$(echo $AUDIT_OPTION | cut -d= -f 2)
PATTERN="^$AUDIT_PARAM[[:space:]]*=[[:space:]]*$AUDIT_VALUE"
debug "$AUDIT_PARAM must have value $AUDIT_VALUE"
does_pattern_exists_in_file $FILE "$PATTERN"
if [ $FNRET != 0 ]; then
crit "$PATTERN not present in $FILE"
else
ok "$PATTERN present in $FILE"
fi
done
fi
}
# This function will be called if the script status is on enabled mode
apply () {
does_file_exist $FILE
if [ $FNRET != 0 ]; then
warn "$FILE does not exist, creating it"
touch $FILE
else
ok "$FILE exist"
fi
for AUDIT_OPTION in $OPTIONS; do
AUDIT_PARAM=$(echo $AUDIT_OPTION | cut -d= -f 1)
AUDIT_VALUE=$(echo $AUDIT_OPTION | cut -d= -f 2)
debug "$AUDIT_PARAM must have value $AUDIT_VALUE"
PATTERN="^$AUDIT_PARAM[[:space:]]*=[[:space:]]*$AUDIT_VALUE"
does_pattern_exists_in_file $FILE "$PATTERN"
if [ $FNRET != 0 ]; then
warn "$PATTERN not present in $FILE, adding it"
does_pattern_exists_in_file $FILE "^$AUDIT_PARAM"
if [ $FNRET != 0 ]; then
info "Parameter $AUDIT_PARAM seems absent from $FILE, adding at the end"
add_end_of_file $FILE "$AUDIT_PARAM = $AUDIT_VALUE"
else
info "Parameter $AUDIT_PARAM is present but with the wrong value, correcting"
replace_in_file $FILE "^$AUDIT_PARAM[[:space:]]*=.*" "$AUDIT_PARAM = $AUDIT_VALUE"
fi
else
ok "$PATTERN present in $FILE"
fi
done
}
# This function will check config parameters required
check_config() {
:
}
# Source Root Dir Parameter
if [ ! -r /etc/default/cis-hardenning ]; then
echo "There is no /etc/default/cis-hardenning file, cannot source CIS_ROOT_DIR variable, aborting"
exit 128
else
. /etc/default/cis-hardenning
if [ -z $CIS_ROOT_DIR ]; then
echo "No CIS_ROOT_DIR variable, aborting"
fi
fi
# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
[ -r $CIS_ROOT_DIR/lib/main.sh ] && . $CIS_ROOT_DIR/lib/main.sh

88
bin/hardening/8.1.3_audit_bootloader.sh Executable file
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#!/bin/bash
#
# CIS Debian 7 Hardening
# Authors : Thibault Dewailly, OVH <thibault.dewailly@corp.ovh.com>
#
#
# 8.1.3 Enable Auditing for Processes That Start Prior to auditd (Scored)
#
set -e # One error, it's over
set -u # One variable unset, it's over
FILE='/etc/default/grub'
OPTIONS='GRUB_CMDLINE_LINUX="audit=1"'
# This function will be called if the script status is on enabled / audit mode
audit () {
does_file_exist $FILE
if [ $FNRET != 0 ]; then
crit "$FILE does not exist"
else
ok "$FILE exist, checking configuration"
for GRUB_OPTION in $OPTIONS; do
GRUB_PARAM=$(echo $GRUB_OPTION | cut -d= -f 1)
GRUB_VALUE=$(echo $GRUB_OPTION | cut -d= -f 2,3)
PATTERN="^$GRUB_PARAM=$GRUB_VALUE"
debug "$GRUB_PARAM must have value $GRUB_VALUE"
does_pattern_exists_in_file $FILE "$PATTERN"
if [ $FNRET != 0 ]; then
crit "$PATTERN not present in $FILE"
else
ok "$PATTERN present in $FILE"
fi
done
fi
}
# This function will be called if the script status is on enabled mode
apply () {
does_file_exist $FILE
if [ $FNRET != 0 ]; then
warn "$FILE does not exist, creating it"
touch $FILE
else
ok "$FILE exist"
fi
for GRUB_OPTION in $OPTIONS; do
GRUB_PARAM=$(echo $GRUB_OPTION | cut -d= -f 1)
GRUB_VALUE=$(echo $GRUB_OPTION | cut -d= -f 2,3)
debug "$GRUB_PARAM must have value $GRUB_VALUE"
PATTERN="^$GRUB_PARAM=$GRUB_VALUE"
does_pattern_exists_in_file $FILE "$PATTERN"
if [ $FNRET != 0 ]; then
warn "$PATTERN not present in $FILE, adding it"
does_pattern_exists_in_file $FILE "^$GRUB_PARAM"
if [ $FNRET != 0 ]; then
info "Parameter $GRUB_PARAM seems absent from $FILE, adding at the end"
add_end_of_file $FILE "$GRUB_PARAM = $GRUB_VALUE"
else
info "Parameter $GRUB_PARAM is present but with the wrong value, correcting"
replace_in_file $FILE "^$GRUB_PARAM=.*" "$GRUB_PARAM=$GRUB_VALUE"
fi
else
ok "$PATTERN present in $FILE"
fi
done
}
# This function will check config parameters required
check_config() {
:
}
# Source Root Dir Parameter
if [ ! -r /etc/default/cis-hardenning ]; then
echo "There is no /etc/default/cis-hardenning file, cannot source CIS_ROOT_DIR variable, aborting"
exit 128
else
. /etc/default/cis-hardenning
if [ -z $CIS_ROOT_DIR ]; then
echo "No CIS_ROOT_DIR variable, aborting"
fi
fi
# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
[ -r $CIS_ROOT_DIR/lib/main.sh ] && . $CIS_ROOT_DIR/lib/main.sh

2
etc/conf.d/8.1.1.3_keep_all_audit_logs.cfg Normal file
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# Configuration for script of same name
status=enabled

2
etc/conf.d/8.1.3_audit_bootloader.cfg Normal file
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# Configuration for script of same name
status=enabled

2
lib/utils.sh
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@ -133,6 +133,7 @@ add_line_file_before_pattern() {
local LINE=$2
local PATTERN=$3
backup_file "$1"
debug "Inserting $LINE before $PATTERN in $FILE"
debug "sed -i '/$PATTERN/i $LINE' $FILE"
sed -i "/$PATTERN/i $LINE" $FILE
@ -144,6 +145,7 @@ replace_in_file() {
local SOURCE=$2
local DESTINATION=$3
backup_file "$1"
debug "Replacing $SOURCE to $DESTINATION in $FILE"
debug "sed -i 's/$SOURCE/$DESTINATION/g' $FILE"
sed -i "s/$SOURCE/$DESTINATION/g" $FILE