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MISP/docs/INSTALL.rhel7.md

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INSTALLATION INSTRUCTIONS for RHEL 7.x

0/ Overview and Assumptions

{!generic/rhelVScentos.md!}

!!! warning The core MISP team cannot verify if this guide is working or not. Please help us in keeping it up to date and accurate. Thus we also have difficulties in supporting RHEL issues but will do a best effort on a similar yet slightly different setup.

This document details the steps to install MISP on Red Hat Enterprise Linux 7.x (RHEL 7.x). At time of this writing it was tested on version 7.6.

The following assumptions with regard to this installation have been made.

0.1/ A valid support agreement allowing the system to register to the Red Hat Customer Portal and receive updates

0.2/ The ability to enable additional RPM repositories, specifically the EPEL and Software Collections (SCL) repos

0.3/ This system will have direct or proxy access to the Internet for updates. Or connected to a Red Hat Satellite Server

0.4/ This document is to get a MISP instance up and running over HTTP. I haven't done a full test of all features

1/ OS Install and additional repositories

1.1/ Complete a minimal RHEL installation, configure IP address to connect automatically.

1.2/ Configure system hostname

sudo hostnamectl set-hostname misp # Your choice, in a production environment, it's best to use a FQDN

1.3/ Register the system for updates with Red Hat Subscription Manager

sudo subscription-manager register --auto-attach # register your system to an account and attach to a current subscription

1.4/ Enable the optional, extras and Software Collections (SCL) repos

sudo subscription-manager refresh 
sudo subscription-manager repos --enable rhel-7-server-optional-rpms
sudo subscription-manager repos --enable rhel-7-server-extras-rpms
sudo subscription-manager repos --enable rhel-server-rhscl-7-rpms

1.5a/ OPTIONAL: Install the deltarpm package to help reduce download size when installing updates

sudo yum install deltarpm -y

1.5/ Update the system and reboot

yum update -y

!!! note As time of writing performing a yum update results in the rhel-7-server-rt-beta-rpms being forbidden.
The repo can be disabled using the following command bash subscription-manager repos --disable rhel-7-server-rt-beta-rpms

1.6/ Install the EPEL repo

yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm -y

2/ Install Dependencies

Once the system is installed and updated, the following steps can be performed as root

2.01/ Install some base system dependencies

yum install gcc git httpd zip python-devel libxslt-devel zlib-devel python-pip ssdeep-devel

2.02/ Install MariaDB 10.2 from SCL

yum install rh-mariadb102

2.03/ Start the MariaDB service and enable it to start on boot

systemctl enable --now rh-mariadb102-mariadb.service

!!! note MISP 2.4 requires PHP 5.6 as a minimum, so we need a higher version than base RHEL provides.
This guide installs PHP 7.2 from SCL

!!! warning PHP 5.6 and 7.0 aren't supported since December 2018. Please update accordingly. In the future only PHP7 will be supported.

2.04/ Install PHP 7.2 from SCL

yum install rh-php72 rh-php72-php-fpm rh-php72-php-devel rh-php72-php-mysqlnd rh-php72-php-mbstring rh-php72-php-xml rh-php72-php-bcmath rh-php72-php-opcache rh-php72-php-gd

!!! note If we want to use httpd from RHEL base we can use the rh-php72-php-fpm service instead

2.05/ Start the PHP FPM service and enable to start on boot

systemctl enable --now rh-php72-php-fpm.service

2.06/ Install redis 3.2 from SCL

yum install rh-redis32

2.07/ Start redis service and enable to start on boot

systemctl enable --now rh-redis32-redis.service

2.08/ Secure the MariaDB installation

scl enable rh-mariadb102 'mysql_secure_installation'

2.09/ Update the PHP extension repository and install required package

scl enable rh-php72 rh-redis32 bash
pear channel-update pear.php.net
pear install Crypt_GPG

2.10/ Install haveged and enable to start on boot to provide entropy for GPG

yum install haveged
systemctl enable --now haveged

2.11/ Install Python 3.6 from SCL

yum install rh-python36

3/ MISP Download

3.01/ Download MISP code using git in /var/www/ directory

cd /var/www
git clone https://github.com/MISP/MISP.git
cd MISP
git checkout tags/$(git describe --tags `git rev-list --tags --max-count=1`)
# if the last shortcut doesn't work, specify the latest version manually
# example: git checkout tags/v2.4.XY
# the message regarding a "detached HEAD state" is expected behaviour
# (you only have to create a new branch, if you want to change stuff and do a pull request for example)
git submodule update --init --recursive
# Make git ignore filesystem permission differences for submodules
git submodule foreach --recursive git config core.filemode false

3.02/ Make git ignore filesystem permission differences

git config core.filemode false

3.03/ Install Mitre's STIX, STIX2 and their dependencies by running the following commands

yum install python-six
cd /var/www/MISP/app/files/scripts
git clone https://github.com/CybOXProject/python-cybox.git
git clone https://github.com/STIXProject/python-stix.git
cd /var/www/MISP/app/files/scripts/python-cybox
git config core.filemode false
# If your umask has been changed from the default, it is a good idea to reset it to 0022 before installing python modules
UMASK=$(umask)
umask 0022
scl enable rh-python36 'python3 setup.py install'
cd /var/www/MISP/app/files/scripts/python-stix
git config core.filemode false
scl enable rh-python36 'python3 setup.py install'
cd /var/www/MISP/cti-python-stix2
scl enable rh-python36 'python3 setup.py install'

3.04/ Install mixbox to accommodate the new STIX dependencies

cd /var/www/MISP/app/files/scripts/
git clone https://github.com/CybOXProject/mixbox.git
cd /var/www/MISP/app/files/scripts/mixbox
git config core.filemode false
scl enable rh-python36 'python3 setup.py install'
umask $UMASK

3.05/ Enable python3 for php-fpm

echo 'source scl_source enable rh-python36' >> /etc/opt/rh/rh-php72/sysconfig/php-fpm
sed -i.org -e 's/^;\(clear_env = no\)/\1/' /etc/opt/rh/rh-php72/php-fpm.d/www.conf
systemctl restart rh-php72-php-fpm.service

3.06/ Enable dependencies detection in the diagnostics page

Add the following content to /etc/opt/rh/rh-php72/php-fpm.d/www.conf :

env[PATH] =/opt/rh/rh-redis32/root/usr/bin:/opt/rh/rh-python36/root/usr/bin:/opt/rh/rh-php72/root/usr/bin:/usr/local/bin:/usr/bin:/bin

Then run systemctl restart rh-php72-php-fpm.service. This allows MISP to detect GnuPG, the Python modules' versions and to read the PHP settings.

4/ CakePHP

4.01/ Install CakeResque along with its dependencies if you intend to use the built in background jobs

cd /var/www/MISP/app
php composer.phar require kamisama/cake-resque:4.1.2
php composer.phar config vendor-dir Vendor
php composer.phar install

4.02/ Install and configure php redis connector through pecl

scl enable rh-php72 'pecl install redis'
echo "extension=redis.so" > /etc/opt/rh/rh-php72/php-fpm.d/redis.ini
ln -s /etc/opt/rh/rh-php72/php-fpm.d/redis.ini /etc/opt/rh/rh-php72/php.d/99-redis.ini
systemctl restart rh-php72-php-fpm.service

4.03/ Set a timezone in php.ini

echo 'date.timezone = "Australia/Sydney"' > /etc/opt/rh/rh-php72/php-fpm.d/timezone.ini
ln -s /etc/opt/rh/rh-php72/php-fpm.d/timezone.ini /etc/opt/rh/rh-php72/php.d/99-timezone.ini

4.04/ To use the scheduler worker for scheduled tasks, do the following:

cp -fa /var/www/MISP/INSTALL/setup/config.php /var/www/MISP/app/Plugin/CakeResque/Config/config.php

4.05/ Install Crypt_GPG and Console_CommandLine

sudo -H -u apache scl enable rh-php72 'pear install ${PATH_TO_MISP}/INSTALL/dependencies/Console_CommandLine/package.xml'
sudo -H -u apache scl enable rh-php72 'pear install ${PATH_TO_MISP}/INSTALL/dependencies/Crypt_GPG/package.xml'

5/ Set file permissions

chown -R apache:apache /var/www/MISP
find /var/www/MISP -type d -exec chmod g=rx {} \;
chmod -R g+r,o= /var/www/MISP

Note : For updates through the web interface to work, apache must own the /var/www/MISP folder and its subfolders as shown above, which can lead to security issues. If you do not require updates through the web interface to work, you can use the following more restrictive permissions :

chown -R root:apache /var/www/MISP
find /var/www/MISP -type d -exec chmod g=rx {} \;
chmod -R g+r,o= /var/www/MISP
chown apache:apache /var/www/MISP/app/files
chown apache:apache /var/www/MISP/app/files/terms
chown apache:apache /var/www/MISP/app/files/scripts/tmp
chown apache:apache /var/www/MISP/app/Plugin/CakeResque/tmp
chown -R apache:apache /var/www/MISP/app/tmp
chown -R apache:apache /var/www/MISP/app/webroot/img/orgs
chown -R apache:apache /var/www/MISP/app/webroot/img/custom

6/ Create database and user

6.01/ Set database to listen on localhost only

echo [mysqld] > /etc/opt/rh/rh-mariadb102/my.cnf.d/bind-address.cnf
echo bind-address=127.0.0.1 >> /etc/opt/rh/rh-mariadb102/my.cnf.d/bind-address.cnf
systemctl restart rh-mariadb102-mariadb

6.02/ Start a MariaDB shell and create the database

scl enable rh-mariadb102 'mysql -u root -p'

MariaDB [(none)]> create database misp;
MariaDB [(none)]> grant usage on *.* to misp@localhost identified by 'XXXXXXXXX';
MariaDB [(none)]> grant all privileges on misp.* to misp@localhost ;
MariaDB [(none)]> exit

6.03/ Import the empty MySQL database from MYSQL.sql

cd /var/www/MISP
mysql -u misp -p misp < INSTALL/MYSQL.sql

7/ Apache Configuration

7.01/ Copy a sample vhost config to Apache configuration directory

cp /var/www/MISP/INSTALL/apache.misp.centos7 /etc/httpd/conf.d/misp.conf

7.02/ Since SELinux is enabled, we need to allow httpd to write to certain directories

chcon -t httpd_sys_rw_content_t /var/www/MISP/app/files
chcon -t httpd_sys_rw_content_t /var/www/MISP/app/files/terms
chcon -t httpd_sys_rw_content_t /var/www/MISP/app/files/scripts/tmp
chcon -t httpd_sys_rw_content_t /var/www/MISP/app/Plugin/CakeResque/tmp
chcon -R -t httpd_sys_rw_content_t /var/www/MISP/app/tmp
chcon -R -t httpd_sys_rw_content_t /var/www/MISP/app/webroot/img/orgs
chcon -R -t httpd_sys_rw_content_t /var/www/MISP/app/webroot/img/custom

7.03/ Allow httpd to connect to the redis server and php-fpm over tcp/ip

setsebool -P httpd_can_network_connect on

7.04/ Enable and start the httpd service

systemctl enable --now httpd.service

7.05/ Open a hole in the firewalld service

firewall-cmd --zone=public --add-port=80/tcp --permanent
firewall-cmd --reload

!!! warning We seriously recommend using only HTTPS / SSL ! Add SSL support by running: yum install mod_ssl Check out the apache.misp.ssl file for an example

8/ Log Rotation

8.01/ Enable log rotation

MISP saves the stdout and stderr of it's workers in /var/www/MISP/app/tmp/logs To rotate these logs install the supplied logrotate script:

cp INSTALL/misp.logrotate /etc/logrotate.d/misp
chmod 0640 /etc/logrotate.d/misp

8.02/ Allow logrotate to work under SELinux and modify the log files

semanage fcontext -a -t httpd_log_t "/var/www/MISP/app/tmp/logs(/.*)?"
chcon -R -t httpd_log_t /var/www/MISP/app/tmp/logs

8.03/ Allow logrotate to read /var/www

checkmodule -M -m -o /tmp/misplogrotate.mod INSTALL/misplogrotate.te
semodule_package -o /tmp/misplogrotate.pp -m /tmp/misplogrotate.mod
semodule -i /tmp/misplogrotate.pp

9/ MISP Configuration

9.01/ There are 4 sample configuration files in /var/www/MISP/app/Config that need to be copied

cd /var/www/MISP/app/Config
cp -a bootstrap.default.php bootstrap.php
cp -a database.default.php database.php
cp -a core.default.php core.php
cp -a config.default.php config.php

9.02/ Configure the fields in the newly created files

# Configure the fields in the newly created files:
# config.php   : baseurl (example: 'baseurl' => 'http://misp',) - don't use "localhost" it causes issues when browsing externally
# core.php   : Uncomment and set the timezone: `// date_default_timezone_set('UTC');`
# database.php : login, port, password, database
# DATABASE_CONFIG has to be filled
# With the default values provided in section 6, this would look like:
# class DATABASE_CONFIG {
#   public $default = array(
#       'datasource' => 'Database/Mysql',
#       'persistent' => false,
#       'host' => 'localhost',
#       'login' => 'misp', // grant usage on *.* to misp@localhost
#       'port' => 3306,
#       'password' => 'XXXXdbpasswordhereXXXXX', // identified by 'XXXXdbpasswordhereXXXXX';
#       'database' => 'misp', // create database misp;
#       'prefix' => '',
#       'encoding' => 'utf8',
#   );
#}

# Important! Change the salt key in /var/www/MISP/app/Config/config.php
# The admin user account will be generated on the first login, make sure that the salt is changed before you create that user
# If you forget to do this step, and you are still dealing with a fresh installation, just alter the salt,
# delete the user from mysql and log in again using the default admin credentials (admin@admin.test / admin)

9.03/ If you want to be able to change configuration parameters from the webinterface:

chown apache:apache /var/www/MISP/app/Config/config.php
chcon -t httpd_sys_rw_content_t /var/www/MISP/app/Config/config.php

9.04/ Generate an encryption key

gpg --gen-key
mv ~/.gnupg /var/www/MISP/
chown -R apache:apache /var/www/MISP/.gnupg
chcon -R -t httpd_sys_rw_content_t /var/www/MISP/.gnupg

!!! note There is a bug that if a passphrase is added MISP will produce an error on the diagnostic page.
/!\ THIS WANTS TO BE VERIFIED AND LINKED WITH A CORRESPONDING ISSUE.

!!! note The email address should match the one set in the config.php configuration file Make sure that you use the same settings in the MISP Server Settings tool

9.05/ Export the public key to the webroot

sudo -u apache gpg --homedir /var/www/MISP/.gnupg --export --armor YOUR-EMAIL > /var/www/MISP/app/webroot/gpg.asc

9.06/ Use MISP's background workers

9.06a/ Create a systemd unit for the workers

Create the following file : /etc/systemd/system/misp-workers.service

[Unit]
Description=MISP's background workers
After=rh-mariadb102-mariadb.service rh-redis32-redis.service rh-php72-php-fpm.service

[Service]
Type=forking
User=apache
Group=apache
ExecStart=/usr/bin/scl enable rh-php72 rh-redis32 rh-mariadb102 /var/www/MISP/app/Console/worker/start.sh
Restart=always
RestartSec=10

[Install]
WantedBy=multi-user.target

Make the workers' script executable and reload the systemd units :

chmod +x /var/www/MISP/app/Console/worker/start.sh
systemctl daemon-reload

9.06b/ Start the workers and enable them on boot

systemctl enable --now misp-workers.service

{!generic/INSTALL.done.md!}

{!generic/recommended.actions.md!}

10/ Post Install

10.01/ Allow apache to write to /var/www/MISP/app/tmp/logs

If the result from the diagnostic page is that the directory is not writable, try the following.

chcon -R -t httpd_sys_rw_content_t /var/www/MISP/app/tmp/logs/

!!! note This may mean that logrotate cannot access the logs directory, will require further investigation

10.02/ Change php.ini settings to suggested limits from diagnostic page.

# Edit /etc/opt/rh/rh-php72/php.ini and set the following settings
max_execution_time = 300
memory_limit = 512M
upload_max_filesize = 50M
post_max_size = 50M

10.03/ Restart rh-php72 for settings to take effect

systemctl restart rh-php72-php-fpm

10.04/ Install pydeep and pymisp

scl enable rh-python36 'python3 -m pip install pymisp git+https://github.com/kbandla/pydeep.git'

11/ LIEF Installation

lief is required for the Advanced Attachment Handler and requires manual compilation

11.01/ Install cmake3 devtoolset-7 from SCL

yum install devtoolset-7 cmake3

11.02/ Create the directory and download the source code

cd /var/www/MISP/app/files/scripts
git clone --branch master --single-branch https://github.com/lief-project/LIEF.git lief

11.03/ Compile lief and install it

cd /var/www/MISP/app/files/scripts/lief
mkdir build
cd build
scl enable devtoolset-7 rh-python36 'bash -c "cmake3 \
-DLIEF_PYTHON_API=on \
-DLIEF_DOC=off \
-DCMAKE_INSTALL_PREFIX=$LIEF_INSTALL \
-DCMAKE_BUILD_TYPE=Release \
-DPYTHON_VERSION=3.6 \
.."'
make -j3
cd api/python
scl enable rh-python36 'python3 setup.py install || :'
# when running setup.py, pip will download and install remote LIEF packages that will prevent MISP from detecting the packages that you compiled ; remove them
find /opt/rh/rh-python36/root/ -name "*lief*" -exec rm -rf {} \;

11.04/ Test lief installation, if no error, package installed

scl enable rh-python36 python3
>> import lief

12/ Known Issues

12.01/ Workers cannot be started or restarted from the web page

Possible also due to package being installed via SCL, attempting to start workers through the web page will result in error. Worker's can be restarted via the CLI using the following command.

systemctl restart misp-workers.service

!!! note No other functions were tested after the conclusion of this install. There may be issue that aren't addressed
via this guide and will need additional investigation.

{!generic/hardening.md!}