Collect Array Networks SSL VPN logs

Supported in:

Google secops SIEM

Note: This feature is covered by Pre-GA Offerings Terms of the Google Security Operations Service Specific Terms. Pre-GA features might have limited support, and changes to pre-GA features might not be compatible with other pre-GA versions. For more information, see the Google SecOps Technical Support Service guidelines and the Google SecOps Service Specific Terms.

This document explains how to ingest Array Networks SSL VPN logs to Google Security Operations using Bindplane. The parser extracts fields from the syslog messages, mapping them to the UDM. It uses grok patterns to identify various log formats, including HTTP requests, SSL messages, and generic status updates, then conditionally parses key-value pairs and CSV data within the messages to populate UDM fields like principal, target, network information, and security results. The parser also handles different event types based on the extracted data, categorizing them as network events, user events, or generic events.

Before you begin

Make sure you have the following prerequisites:

• A Google SecOps instance
• A Windows 2016 or later or Linux host with systemd
• If running behind a proxy, ensure firewall ports are open per the Bindplane agent requirements
• Privileged access to the Array Networks SSL VPN management console or appliance (AG Series or vxAG)

Get Google SecOps ingestion authentication file

1. Sign in to the Google SecOps console.
2. Go to SIEM Settings > Collection Agents.
3. Download the Ingestion Authentication File. Save the file securely on the system where Bindplane will be installed.

Get Google SecOps customer ID

1. Sign in to the Google SecOps console.
2. Go to SIEM Settings > Profile.
3. Copy and save the Customer ID from the Organization Details section.

Install the Bindplane agent

Install the Bindplane agent on your Windows or Linux operating system according to the following instructions.

Windows installation

1. Open the Command Prompt or PowerShell as an administrator.

2. Run the following command:

   msiexec /i "https://github.com/observIQ/bindplane-agent/releases/latest/download/observiq-otel-collector.msi" /quiet
   

Linux installation

1. Open a terminal with root or sudo privileges.

2. Run the following command:

   sudo sh -c "$(curl -fsSlL https://github.com/observiq/bindplane-agent/releases/latest/download/install_unix.sh)" install_unix.sh
   

Additional installation resources

• For additional installation options, consult this installation guide.

Configure the Bindplane agent to ingest Syslog and send to Google SecOps

1. Access the configuration file:

   1. Locate the config.yaml file. Typically, it's in the /etc/bindplane-agent/ directory on Linux or in the installation directory on Windows.
   2. Open the file using a text editor (for example, nano, vi, or Notepad).

2. Edit the config.yaml file as follows:

   receivers:
     udplog:
       # Replace the port and IP address as required
       listen_address: "0.0.0.0:514"
   
   exporters:
     chronicle/chronicle_w_labels:
       compression: gzip
       # Adjust the path to the credentials file you downloaded in Step 1
       creds_file_path: '/path/to/ingestion-authentication-file.json'
       # Replace with your actual customer ID from Step 2
       customer_id: <CUSTOMER_ID>
       endpoint: malachiteingestion-pa.googleapis.com
       # Add optional ingestion labels for better organization
       log_type: 'ARRAYNETWORKS_VPN'
       raw_log_field: body
       ingestion_labels:
   
   service:
     pipelines:
       logs/source0__chronicle_w_labels-0:
         receivers:
           - udplog
         exporters:
           - chronicle/chronicle_w_labels
   

   • Replace the port and IP address as required in your infrastructure.
   • Replace <CUSTOMER_ID> with the actual customer ID.
   • Update /path/to/ingestion-authentication-file.json to the path where the authentication file was saved in the Get Google SecOps ingestion authentication file section.

Restart the Bindplane agent to apply the changes

• To restart the Bindplane agent in Linux, run the following command:

  sudo systemctl restart bindplane-agent
  

• To restart the Bindplane agent in Windows, you can either use the Services console or enter the following command:

  net stop BindPlaneAgent && net start BindPlaneAgent
  

Configure Syslog forwarding on Array Networks SSL VPN

1. Sign in to the Array Networks SSL VPN Management Console web UI.
2. In the left navigation menu, click ADMIN TOOLS.
3. Click Monitoring.
4. Click the Logging tab.
5. Click the Syslog Servers sub-tab.
6. In the REMOTE SYSLOG SERVER CONFIGURATION section, click Add Server Entry.
7. Provide the following configuration details:
   • Host IP: Enter the Bindplane agent IP address.
   • Host Port: Enter the Bindplane agent port number (for example, 514).
   • Protocol: Select UDP or TCP, depending on your Bindplane agent configuration.
   • Source Port: Leave default or specify if required by your network configuration.
   • Level: Select Informational.
8. Click Save to apply the configuration.
9. Click Save Configuration at the top of the page to persist the changes.

Note: The UI paths are based on Array Networks AG Series and vxAG firmware. If your firmware version differs, the exact menu labels may vary slightly. Consult your Array Networks administration guide for firmware-specific instructions.

UDM Mapping Table

Log Field	UDM Mapping	Logic
clientip	principal.ip	The client's IP address extracted from the clientip field in the raw log message.
column1	principal.ip	IP address extracted from column1 in the raw log.
column1	principal.asset.ip	IP address extracted from column1 in the raw log.
column3	network.received_bytes	The number of received bytes, converted to an unsigned integer.
column4	network.http.method	The HTTP method extracted from column4 in the raw log.
column7	target.ip	The target IP address extracted from column7 in the raw log.
dport	target.port	Destination port, converted to an integer.
dst	target.ip	Destination IP address.
dst	target.asset.ip	Destination IP address.
hostname	principal.hostname	The hostname extracted from the hostname field in the raw log message.
hostname	principal.asset.hostname	The hostname extracted from the hostname field in the raw log message.
http_method	network.http.method	The HTTP method extracted from the raw log message.
id	principal.application	The application ID from the raw log.
mac	principal.mac	The MAC address extracted from the mac field in the raw log message.
msg	metadata.product_event_type	The message field from the raw log, used as the product event type. Also used for security_result.description after removing backslashes and quotes.
product_name	metadata.product_name	The product name extracted from the raw log message.
prxy_ip	intermediary.ip	Proxy IP address.
prxy_port	intermediary.port	Proxy port, converted to an integer.
response_code	network.http.response_code	The HTTP response code, converted to an integer.
security_result.action	security_result.action	Determined by the parser logic based on the value of column2. "BLOCK" if column2 contains "TCP_MISS", "UNKNOWN_ACTION" otherwise.
security_result.description	security_result.description	The message field from the raw log, after removing backslashes and quotes.
sport	principal.port	Source port, converted to an integer.
src	principal.ip	Source IP address.
src	principal.asset.ip	Source IP address.
target_hostname	target.hostname	The target hostname extracted from the raw log message.
timestamp	metadata.event_timestamp	The timestamp extracted from the raw log message and parsed into a timestamp object.
uri	target.url	Part of the target URL. Combined with uri_param to form the complete URL.
uri_param	target.url	Part of the target URL. Combined with uri to form the complete URL.
user	target.user.userid	The username extracted from the raw log message.
user_agent_string	network.http.user_agent	The user agent string extracted from the raw log message.
vpn	target.user.group_identifiers	The VPN name extracted from the raw log message.
metadata.event_type	metadata.event_type	Determined by the parser logic based on a combination of fields like has_principal, has_target, has_http_value, and user. Can be "NETWORK_HTTP", "NETWORK_CONNECTION", "STATUS_UPDATE", "USER_UNCATEGORIZED", or "GENERIC_EVENT".
network.ip_protocol	network.ip_protocol	Set to "TCP" if the message contains "TCP".

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