Cb Defense Syslog TLS Connector

This connector allows you to forward alert notifications from your Cb Defense cloud instance into local, on-premise SIEM systems that accept industry standard syslog notifications. By default, it will generate pipe-delimited syslog messages containing the key metadata associated with any alert identified by the Cb Defense streaming prevention system.

The syslog connector will aggregate data from one or more Cb Defense organizations into a single syslog stream. The connector can be configured to use UDP, TCP, or encrypted (TCP over TLS) syslog protocols.

This connector is distributed as a binary RPM package compatible with any Red Hat or CentOS Linux distribution, CentOS/RHEL 6.x and above, running on a 64-bit Intel platform.

Installation

1. Install the software. As root on your Carbon Black or other RPM based 64-bit Linux distribution server:

   cd /etc/yum.repos.d
   

   curl -O https://opensource.carbonblack.com/release/x86_64/CbOpenSource.repo
   

   yum install python-cb-defense-syslog
   

2. Copy the example config file:

   cd /etc/cb/integrations/cb-defense-syslog
   

   cp cb-defense-syslog.conf.example cb-defense-syslog.conf
   

3. Modify the config file /etc/cb/integrations/cb-defense-syslog/cb-defense-syslog.conf as needed

4. Test the new connector. As root, execute:

   /usr/share/cb/integrations/cb-defense-syslog/cb-defense-syslog --config-file /etc/cb/integrations/cb-defense-syslog/cb-defense-syslog.conf --log-file /var/log/cb/integrations/cb-defense-syslog/cb-defense-syslog.log
   

   Then:

   cat /var/log/cb/integrations/cb-defense-syslog/cb-defense-syslog.log
   

   A successful run will look like:

   2017-06-27 09:24:10,747 - __main__ - INFO - Found 1 Cb Defense Servers in config file
   2017-06-27 09:24:10,748 - __main__ - INFO - Handling notifications for https://api-eap01.conferdeploy.net
   2017-06-27 09:24:10,748 - __main__ - INFO - Attempting to connect to url: https://api-eap01.conferdeploy.net
   2017-06-27 09:24:10,748 - __main__ - INFO - connectorID = XXXX
   2017-06-27 09:24:10,845 - __main__ - INFO - <Response [200]>
   2017-06-27 09:24:10,845 - __main__ - INFO - sessionId = XXXX
   2017-06-27 09:24:10,888 - __main__ - INFO - <Response [200]>
   2017-06-27 09:24:10,889 - __main__ - INFO - successfully connected, no alerts at this time
   2017-06-27 09:24:10,889 - __main__ - INFO - There are no messages to forward to host
   

5. Start the connector by enabling it in cron. Uncomment the Cb Defense Connector (remove the beginning # from the last line) in /etc/cron.d/cb-defense-syslog. By default, the connector will run once per hour.

Debug Logs

Debug Logs are stored in /var/log/cb/integrations/cb-defense-syslog/

Sample Config File

[general]

#
# Template for syslog output.
# This is a jinja 2 template
# NOTE: The source variable corresponds to the Cb Defense Server used to retrieve results
#
template = {{source}}|{{version}}|{{vendor}}|{{product}}|{{dev_version}}|{{signature}}|{{name}}|{{severity}}|{{extension}}

#
# Configure the specific output.
# Valid options are: 'udp', 'tcp', 'tcp+tls'
#
#  udp     - Have the events sent over a UDP socket
#  tcp     - Have the events sent over a TCP socket
#  tcp+tls - Have the events sent over a TLS+TCP socket
#
output_type=tcp

#
# Output format of the data sent. Currently support json or cef formats
#
# Warning: if using json output_format, we recommend NOT using UDP output_type
#
output_format=cef

#
# tcpout=IP:port - ie 1.2.3.5:8080
#
tcp_out=

#
# udpout=IP:port - ie 1.2.3.5:8080
#
udp_out=

[tls]

#
# Specify a file containing PEM-encoded CA certificates for verifying the peer server when using TLS+TCP syslog
#
#ca_cert = /etc/cb/integrations/cb-defense/cert.pem

#
# Optionally specify a file containing PEM-encoded client certificate for verifying this client when using TLS+TCP syslog
# If cert is specified, key is a required parameter
#
#cert = /etc/cb/integrations/cb-defense/cert.pem

#
# Optionally specify a file containing PEM-encoded private key for verifying this client when using TLS+TCP syslog
# If key is specified, cert is a required parameter
#
#key = /etc/cb/integrations/cb-defense/cert.key

#
# Optionally specify the password to decrypt the given private key when using TLS+TCP syslog
#
#key_password = p@ssw0rd1

#
# Uncomment tls_verify and set to "false" in order to disable verification of the peer server certificate
#
#tls_verify = true

[cbdefense1]

#
# Cb Defense Connector ID
#
connector_id = F8KF111111

#
# Cb Defense API Key
#
api_key = WT9T3QDP4UGCK2NS96111111

#
# Cb Defense Server URL
# NOTE: this is not the url to the web ui, but to the API URL
#
server_url = https://server.yourcompany.com

#
# For more than one Cb Defense Server, add another server using the following template including the stanza
#
#[cbdefenseserver2]
#connector_id = F8KF111111
#api_key = WT9T3QDP4UGCK2NS96111111
#server_url = https://server2.yourcompany.com