debian-cis/bin/hardening/8.2.5_syslog-ng_remote_host.sh
Charles Herlin 80a1146af7 IMP(8.2.5): find multiline pattern in files (syslog)
Add func to find pattern in file that spreads over multiple lines
The func will remove commented lines (that begin with '#')
and consider the file as one long line.
Thus, this is not possible to look for pattern at beginning of line
with this func ('^' and '$')

Improved pattern in 8.2.5

Add syslog-ng to installed dependencies in Dockerfiles

Fixed multifile arguments when looking for pattern that got broken
in d2bbf754 due to "nocase" and _does_pattern_exist_in_file wrapper
Please note that you can only look for pattern in ONE FILE at once
Fixed 8.2.5 and 8.3.2 with for loop on files and 'FOUND' flag
You now need to specify each and every file to look for or embed a
'find' command as follow :
`FILES="$SYSLOG_BASEDIR/syslog-ng.conf $(find $SYSLOG_BASEDIR/conf.d/)"`

Improved test files
Applied shellcheck recommendations
2019-02-22 12:39:41 +01:00

84 lines
2.2 KiB
Bash
Executable File

#!/bin/bash
#
# CIS Debian Hardening
#
#
# 8.2.5 Configure rsyslog to Send Logs to a Remote Log Host (Scored)
#
set -e # One error, it's over
set -u # One variable unset, it's over
HARDENING_LEVEL=3
DESCRIPTION="Configure syslog-ng to send logs to a remote log host."
PATTERN='destination[[:alnum:][:space:]*{]+(tcp|udp)[[:space:]]*\(\"[[:alnum:].]+\".'
# This function will be called if the script status is on enabled / audit mode
audit () {
FOUND=0
FILES="$SYSLOG_BASEDIR/syslog-ng.conf $(find $SYSLOG_BASEDIR/conf.d/)"
for FILE in $FILES; do
does_pattern_exist_in_file_multiline "$FILE" "$PATTERN"
if [ $FNRET == 0 ]; then
FOUND=1
fi
done
if [ $FOUND == 1 ]; then
ok "$PATTERN is present in $FILES"
else
crit "$PATTERN is not present in $FILES"
fi
}
# This function will be called if the script status is on enabled mode
apply () {
FOUND=0
FILES="$SYSLOG_BASEDIR/syslog-ng.conf $(find $SYSLOG_BASEDIR/conf.d/ -type f)"
for FILE in $FILES; do
does_pattern_exist_in_file_multiline "$FILE" "$PATTERN"
if [ $FNRET == 0 ]; then
FOUND=1
fi
done
if [ $FOUND == 1 ]; then
ok "$PATTERN is present in $FILES"
else
crit "$PATTERN is not present in $FILES, please set a remote host to send your logs"
fi
}
# This function will create the config file for this check with default values
create_config() {
cat <<EOF
status=audit
SYSLOG_BASEDIR='/etc/syslog-ng'
EOF
}
# This function will check config parameters required
check_config() {
:
}
# Source Root Dir Parameter
if [ -r /etc/default/cis-hardening ]; then
. /etc/default/cis-hardening
fi
if [ -z "$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