Stefan Schantl [Wed, 26 Sep 2018 12:11:31 +0000 (14:11 +0200)]
IDS: Introduce update-ids-ruleset
This script periodly will be called by fcron
and is responsible for downloading and altering
the ruleset, if autoupdate of the configured ruleset is
enabled.
Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>
Stefan Schantl [Thu, 6 Sep 2018 10:09:34 +0000 (12:09 +0200)]
logs.cgi/ids.dat: Adjust code to show suricata events
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>
Stefan Schantl [Thu, 30 Aug 2018 13:12:29 +0000 (15:12 +0200)]
Enable threshold file in suricata.yaml
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>
Stefan Schantl [Wed, 29 Aug 2018 09:50:59 +0000 (11:50 +0200)]
ids.cgi: Create file for used rulefiles on first execution if not present
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>
Stefan Schantl [Fri, 24 Aug 2018 12:55:40 +0000 (14:55 +0200)]
ids-functions.pl: Add priviate function _check_rulesdir_permissions()
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>
Stefan Schantl [Wed, 22 Aug 2018 06:39:57 +0000 (08:39 +0200)]
ids.cgi: Rework handling of enabled/disabled sids
Now the enabled or disabled sids are stored in a single
hash instead of two arrays, which easily can be modified.
When saving the ruleset, the new read_enabled_disabled_sids() function
will be used to read-in the current (old) saved enabled or disabled sids
and add them to the new hash structure.
After adding or modifiying sids to the hash, the entries will be written
to the corresponding files.
Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>
Stefan Schantl [Wed, 22 Aug 2018 06:38:16 +0000 (08:38 +0200)]
ids.cgi: Add function to read the enabled/disabled sid files
This function is used to read-in the files for enabled or disabled sid
files and stores the sid and their state into a temporary hash which will
be returned by the function.
Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>
Stefan Schantl [Sat, 18 Aug 2018 12:48:30 +0000 (14:48 +0200)]
ids.cgi: Add backend code to handle switch between IDS and IPS mode
This commit adds the required backend code to allow switching
between IDS and IPS mode of suricata.
Technically the behaviour of suricata is specified by the rules -
each of them can contain the action "alert" or "drop" (There are
more actions supported but these two are currently the important one)
When running in IDS mode, the ruleset does not need to be touched,
because the default action is "alert". When switching to IPS mode,
the CGI writes a single line to "oinkmaster-modify-sids.conf" which
is included by oinkmaster and modify the action for each single rule
from alert to drop.
Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>
Peter Müller [Thu, 16 Aug 2018 15:08:04 +0000 (17:08 +0200)]
Postfix: update to 3.3.1
This updates Postfix to recent 3.3.x series, which contains
some new features. Release announcement available at
http://www.postfix.org/announcements/postfix-3.3.1.html
The third version of this patch superseds the first and
second one which were broken due to bugs in the MUAs GPG
implementation.
Signed-off-by: Peter Müller <peter.mueller@link38.eu> Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
Matthias Fischer [Tue, 14 Aug 2018 19:34:38 +0000 (21:34 +0200)]
Fixes for 'backup.pl' (Bug #11816)
Hi,
Fixes #11816
(https://bugzilla.ipfire.org/show_bug.cgi?id=11816 and
https://bugzilla.ipfire.org/attachment.cgi?id=608):
"[root@ipfire ~]# backupctrl exclude
...
tar: The following options were used after any non-optional arguments in
archive create or update mode. These options are positional and affect
only arguments that follow them. Please, rearrange them properly.
tar: --exclude-from '/var/ipfire/backup/exclude.user' has no effect
tar: Exiting with failure status due to previous errors"
Please test - I got no errors anymore.
Best,
Matthias
Signed-off-by: Matthias Fischer <matthias.fischer@ipfire.org> Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
Michael Tremer [Tue, 14 Aug 2018 18:12:53 +0000 (19:12 +0100)]
openssl: Update to 1.1.0i and 1.0.2p
Changes between 1.1.0h and 1.1.0i [14 Aug 2018]
*) Client DoS due to large DH parameter
During key agreement in a TLS handshake using a DH(E) based ciphersuite a
malicious server can send a very large prime value to the client. This will
cause the client to spend an unreasonably long period of time generating a
key for this prime resulting in a hang until the client has finished. This
could be exploited in a Denial Of Service attack.
This issue was reported to OpenSSL on 5th June 2018 by Guido Vranken
(CVE-2018-0732)
[Guido Vranken]
*) Cache timing vulnerability in RSA Key Generation
The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to
a cache timing side channel attack. An attacker with sufficient access to
mount cache timing attacks during the RSA key generation process could
recover the private key.
This issue was reported to OpenSSL on 4th April 2018 by Alejandro Cabrera
Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia.
(CVE-2018-0737)
[Billy Brumley]
*) Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str
parameter is no longer accepted, as it leads to a corrupt table. NULL
pem_str is reserved for alias entries only.
[Richard Levitte]
*) Revert blinding in ECDSA sign and instead make problematic addition
length-invariant. Switch even to fixed-length Montgomery multiplication.
[Andy Polyakov]
*) Change generating and checking of primes so that the error rate of not
being prime depends on the intended use based on the size of the input.
For larger primes this will result in more rounds of Miller-Rabin.
The maximal error rate for primes with more than 1080 bits is lowered
to 2^-128.
[Kurt Roeckx, Annie Yousar]
*) Increase the number of Miller-Rabin rounds for DSA key generating to 64.
[Kurt Roeckx]
*) Add blinding to ECDSA and DSA signatures to protect against side channel
attacks discovered by Keegan Ryan (NCC Group).
[Matt Caswell]
*) When unlocking a pass phrase protected PEM file or PKCS#8 container, we
now allow empty (zero character) pass phrases.
[Richard Levitte]
*) Certificate time validation (X509_cmp_time) enforces stricter
compliance with RFC 5280. Fractional seconds and timezone offsets
are no longer allowed.
[Emilia Käsper]
*) Fixed a text canonicalisation bug in CMS
Where a CMS detached signature is used with text content the text goes
through a canonicalisation process first prior to signing or verifying a
signature. This process strips trailing space at the end of lines, converts
line terminators to CRLF and removes additional trailing line terminators
at the end of a file. A bug in the canonicalisation process meant that
some characters, such as form-feed, were incorrectly treated as whitespace
and removed. This is contrary to the specification (RFC5485). This fix
could mean that detached text data signed with an earlier version of
OpenSSL 1.1.0 may fail to verify using the fixed version, or text data
signed with a fixed OpenSSL may fail to verify with an earlier version of
OpenSSL 1.1.0. A workaround is to only verify the canonicalised text data
and use the "-binary" flag (for the "cms" command line application) or set
the SMIME_BINARY/PKCS7_BINARY/CMS_BINARY flags (if using CMS_verify()).
[Matt Caswell]
Changes between 1.0.2o and 1.0.2p [14 Aug 2018]
*) Client DoS due to large DH parameter
During key agreement in a TLS handshake using a DH(E) based ciphersuite a
malicious server can send a very large prime value to the client. This will
cause the client to spend an unreasonably long period of time generating a
key for this prime resulting in a hang until the client has finished. This
could be exploited in a Denial Of Service attack.
This issue was reported to OpenSSL on 5th June 2018 by Guido Vranken
(CVE-2018-0732)
[Guido Vranken]
*) Cache timing vulnerability in RSA Key Generation
The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to
a cache timing side channel attack. An attacker with sufficient access to
mount cache timing attacks during the RSA key generation process could
recover the private key.
This issue was reported to OpenSSL on 4th April 2018 by Alejandro Cabrera
Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia.
(CVE-2018-0737)
[Billy Brumley]
*) Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str
parameter is no longer accepted, as it leads to a corrupt table. NULL
pem_str is reserved for alias entries only.
[Richard Levitte]
*) Revert blinding in ECDSA sign and instead make problematic addition
length-invariant. Switch even to fixed-length Montgomery multiplication.
[Andy Polyakov]
*) Change generating and checking of primes so that the error rate of not
being prime depends on the intended use based on the size of the input.
For larger primes this will result in more rounds of Miller-Rabin.
The maximal error rate for primes with more than 1080 bits is lowered
to 2^-128.
[Kurt Roeckx, Annie Yousar]
*) Increase the number of Miller-Rabin rounds for DSA key generating to 64.
[Kurt Roeckx]
*) Add blinding to ECDSA and DSA signatures to protect against side channel
attacks discovered by Keegan Ryan (NCC Group).
[Matt Caswell]
*) When unlocking a pass phrase protected PEM file or PKCS#8 container, we
now allow empty (zero character) pass phrases.
[Richard Levitte]
*) Certificate time validation (X509_cmp_time) enforces stricter
compliance with RFC 5280. Fractional seconds and timezone offsets
are no longer allowed.
[Emilia Käsper]
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
projects / ipfire-2.x.git / log
