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- Log ----------------------------------------------------------------- commit 06988eaf4961be6c74a9aefb8203eb7b53157bd6 Author: Michael Tremer michael.tremer@ipfire.org Date: Wed Nov 18 17:31:32 2015 +0000

core96: Ship updated core initscript

Signed-off-by: Michael Tremer michael.tremer@ipfire.org

commit c77e962d565b1ae07c9b44e3c864c9bacc9f6b78 Author: Stefan Schantl stefan.schantl@ipfire.org Date: Fri Oct 16 18:49:15 2015 +0200

snort: Also monitor assigned alias addresses on red.

These changes will allow snort to also inspect the traffic for one or more configured alias addresses, which has not been done in the past.

The current situation is, that snort if enabled on red, only inspects the traffic which is desired to the statically configured red address.

If some alias addresses have been assigned to the red interface the traffic to these addresses will not be checked by snort and completely bypasses the IDS.

There is no user interaction required, nor visible-effects or any backward-compatiblity required, only a restart of snort after the update process to protect all red addresses.

To do this we will now check if, the RED interface has been set to STATIC (which is required to use the aliases function) and any aliases have been configured. In case of this, the modified code will add all enabled alias addresses to the HOMENET variable in which snort is storing all the monitored addresses.

Fixes #10619.

Signed-off-by: Stefan Schantl stefan.schantl@ipfire.org Signed-off-by: Michael Tremer michael.tremer@ipfire.org

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Summary of changes: config/rootfiles/core/96/filelists/files | 1 + src/initscripts/init.d/snort | 15 +++++++++++++++ 2 files changed, 16 insertions(+)

Difference in files: diff --git a/config/rootfiles/core/96/filelists/files b/config/rootfiles/core/96/filelists/files index c9f5f4e..9e120af 100644 --- a/config/rootfiles/core/96/filelists/files +++ b/config/rootfiles/core/96/filelists/files @@ -1,3 +1,4 @@ etc/system-release etc/issue +etc/rc.d/init.d/snort opt/pakfire/lib/functions.pl diff --git a/src/initscripts/init.d/snort b/src/initscripts/init.d/snort index e03c80f..58edf1e 100644 --- a/src/initscripts/init.d/snort +++ b/src/initscripts/init.d/snort @@ -20,6 +20,8 @@ PATH=/usr/local/sbin:/usr/local/bin:/bin:/usr/bin:/sbin:/usr/sbin; export PATH eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings) eval $(/usr/local/bin/readhash /var/ipfire/snort/settings)

+ALIASFILE="/var/ipfire/ethernet/aliases" + case "$1" in start) if [ "$BLUE_NETADDRESS" ]; then @@ -59,6 +61,19 @@ case "$1" in if [ "$LOCAL_IP" ]; then HOMENET+="$LOCAL_IP," fi + + # Check if the red device is set to static and + # any aliases have been configured. + if [ "${RED_TYPE}" == "STATIC" ] && [ -s "${ALIASFILE}" ]; then + # Read in aliases file. + while IFS="," read -r address mode remark; do + # Check if the alias is enabled. + [ "${mode}" = "on" ] || continue + + # Add alias to the list of HOMENET addresses. + HOMENET+="${address}," + done < "${ALIASFILE}" + fi fi HOMENET+="127.0.0.1" echo "ipvar HOME_NET [$HOMENET]" > /etc/snort/vars

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