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ADD(4.2.1.6): add new syslog-ng check

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This commit is contained in:
Thibault Ayanides 2021-01-04 14:24:35 +01:00
parent 0ca73899d3
commit 624aba950d
1 changed files with 64 additions and 3 deletions
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67
bin/hardening/4.2.1.6_remote_syslog-ng_acl.sh
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@ -6,7 +6,7 @@
#
#
# 4.2.1.6 Ensure remote rsyslog messages are only accepted on designated log hosts. (Not Scored)
# 4.2.1.6 Ensure remote syslog-ng messages are only accepted on designated log hosts. (Not Scored)
#
set -e # One error, it's over
@ -17,14 +17,75 @@ HARDENING_LEVEL=3
# shellcheck disable=2034
DESCRIPTION="Configure syslog to accept remote syslog messages only on designated log hosts."
REMOTE_HOST=""
PATTERN='source[[:alnum:][:space:]*{]+(tcp|udp)[[:space:]]*\(\"[[:alnum:].]+\".'
# This function will be called if the script status is on enabled / audit mode
audit() {
info "Not implemented yet"
FOUND=0
FILES="$SYSLOG_BASEDIR/syslog-ng.conf $($SUDO_CMD find -L "$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 [[ "$REMOTE_HOST" ]]; then
info "This is the remote host, checking that it only accepts logs from specified zone"
if [ "$FOUND" = 1 ]; then
ok "$PATTERN is present in $FILES"
else
crit "$PATTERN is not present in $FILES"
fi
else
info "This is the not the remote host checking that it doesn't accept remote logs"
if [ "$FOUND" = 1 ]; then
crit "$PATTERN is present in $FILES"
else
ok "$PATTERN is not present in $FILES"
fi
fi
}
# This function will be called if the script status is on enabled mode
apply() {
info "Not implemented yet"
FOUND=0
FILES="$SYSLOG_BASEDIR/syslog-ng.conf $(find -L "$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 [[ "$REMOTE_HOST" ]]; then
info "This is the remote host, checking that it only accepts logs from specified zone"
if [ "$FOUND" = 1 ]; then
ok "$PATTERN is present in $FILES"
else
crit "$PATTERN is not present in $FILES, setup the machine to receive the logs"
fi
else
info "This is the not the remote host checking that it doesn't accept remote logs"
if [ "$FOUND" = 1 ]; then
warn "$PATTERN is present in $FILES, "
else
ok "$PATTERN is not present in $FILES"
fi
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'
# Put here if it's the remote host or not
REMOTE_HOST=false
EOF
}
# This function will check config parameters required