This parameter was passed to some shell commands without any
sanitisation which allowed an attacker who was authenticated to
the web UI to download arbitrary files from some directories
and delete any file from the filesystem.
References: #11830
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
Only set the state of a used rulefile to "on" if it is present in
the %idsrules hash. This happens if it contains at least one rule.
This prevents from showing a rulefile in the ruleset section if, it
does not exist anymore or does not contains any rules at all.
Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>
If an IP-address has been added to the whitelist, any traffic from
this host will not longer inspected by suricata.
Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>
Most of these files still used old dates and/or domain names for contact
mail addresses. This is now replaced by an up-to-date copyright line.
Just some housekeeping... :-)
Signed-off-by: Peter Müller <peter.mueller@link38.eu>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
Introduce a custom OpenSSH client configuration file for IPFire.
Some people use it as a jumping host, so applying hardening options
system-wide improves security.
Cryptography setup is the same as for OpenSSH server configuration.
The second version of this patch re-adds some non-AEAD cipher suites
which are needed for connecting to older RHEL systems.
Partially fixes#11751
Signed-off-by: Peter Müller <peter.mueller@link38.eu>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
Attempt to detect DNS spoofing attacks by inserting 0x20-encoded
random bits into upstream queries. Upstream documentation claims
it to be an experimental implementation, it did not cause any trouble
on productive systems here.
See https://nlnetlabs.nl/documentation/unbound/unbound.conf/ for
further details.
Signed-off-by: Peter Müller <peter.mueller@link38.eu>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
By default, Unbound neither keeps track of the number of unwanted
replies nor initiates countermeasures if they become too large (DNS
cache poisoning).
This sets the maximum number of tolerated unwanted replies to
1M, causing the cache to be flushed afterwards. (Upstream documentation
recommends 10M as a threshold, but this turned out to be ineffective
against attacks in the wild.)
See https://nlnetlabs.nl/documentation/unbound/unbound.conf/ for
details. This version of the patch uses 1M as threshold instead of
5M and supersedes the first and second version.
Signed-off-by: Peter Müller <peter.mueller@link38.eu>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
Embed the IPFire background image into the redirect template
directly via CSS instead of loading it from somewhere else.
This is necessary because of Content Security Policy (CSP).
This patch inserts the base64 encoded image during build so
nothing needs to be updated twice in case background image
changes.
It supersedes first to fourth version of this patch and has
been successfully tested during a clean build.
Fixes#11650
Signed-off-by: Peter Müller <peter.mueller@link38.eu>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
As default show the events generated by suricata and if
for a certain selected date no suricata log is available
try to fall-back to read the events from the old snort
alert files (if available).
Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>
Enable and specify the path to the threshold-file in the suricata.yaml,
otherwise the programm is trying to read it from a build-in default
location and prints the following error message:
Error opening file: "/etc/suricata//threshold.config": No such file or directory
Fixes#11837.
Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>
Now all oinkmaster related config files and suricata
related yaml files in "/var/ipfire/suricata/" will be
included into the backups.
Also the entire ruleset is part of the backup, so after a
backup has been restored, the IDS can be used in the same way
as before.
Fixes#11835.
Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>
Create this file on first execution of the script if it does not exist yet.
This will allow suricata to imediately be started. Otherwise the ruleset has
to be downloaded and configured before this file has been created and suricata
could be launched.
Fixes#11833.
Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>
Change the get_memory_usage() function to grab and return the
memory usage of the entire process, containing all sub-processes and
threads.
Fixes#11821
Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>
The concept has been retired a very log time ago
and the web service only responds with 200 what ever
it is being sent.
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
This is not really necessary because pakfire will automatically
failover to the next mirror anyways and that a mirror responds
to an ICMP echo request doesn't necessarily mean that it can
deliver the requested file.
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
This function checks if all files located in /etc/suricata/rules are
writable by the effective user and group (nobody:nobody) and if not
calls suricatactl to fix it.
Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>
This command is used to set the ownership and permissions
back to nobody:nobdoy which is used by the WUI to write the
ruleset.
Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>
Remove a lot of stuff and options which are deactivated during compiling,
unsupported by the plattform or not used in IPFire.
Add an advice to the full documented suricata-example.yaml file which also
is shipped by IPFire.
More work needs to be done.
See #11808
Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>
