Collect Cisco Secure ACS logs

Supported in:

Google secops SIEM

This document explains how to ingest Cisco Secure ACS logs to Google Security Operations using Bindplane.

The parser extracts fields from Cisco Secure ACS syslog and key-value formatted logs. It uses grok and/or kv to parse the log message and then maps these values to the Unified Data Model (UDM). It also sets default metadata values for the event source and type.

Before you begin

Make sure you have the following prerequisites:

A Google SecOps instance
Windows Server 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 Cisco Secure ACS web interface

Get Google SecOps ingestion authentication file

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

Get Google SecOps customer ID

Sign in to the Google SecOps console.
Go to SIEM Settings > Profile.
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

Open Command Prompt or PowerShell as an administrator.

Run the following command:

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

Wait for the installation to complete.
Verify the installation by running:
```
sc query observiq-otel-collector
```

The service should show as RUNNING.

Linux installation

Open a terminal with root or sudo privileges.

Run the following command:

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

Wait for the installation to complete.

Verify the installation by running:

sudo systemctl status observiq-otel-collector

The service should show as active (running).

Additional installation resources

For additional installation options and troubleshooting, see Bindplane agent installation guide.

Configure Bindplane agent to ingest syslog and send to Google SecOps

Locate the configuration file

Linux:

sudo nano /etc/bindplane-agent/config.yaml

Windows:

notepad "C:\Program Files\observIQ OpenTelemetry Collector\config.yaml"

Edit the configuration file

Replace the entire contents of config.yaml with the following configuration:

receivers:
    udplog:
        listen_address: "0.0.0.0:514"

exporters:
    chronicle/chronicle_w_labels:
        compression: gzip
        creds_file_path: '/path/to/ingestion-authentication-file.json'
        customer_id: 'YOUR_CUSTOMER_ID'
        endpoint: malachiteingestion-pa.googleapis.com
        log_type: 'CISCO_ACS'
        raw_log_field: body
        ingestion_labels:

service:
    pipelines:
        logs/source0__chronicle_w_labels-0:
            receivers:
                - udplog
            exporters:
                - chronicle/chronicle_w_labels

Configuration parameters

Replace the following placeholders:
- Receiver configuration:
  - udplog: Use udplog for UDP syslog or tcplog for TCP syslog
  - 0.0.0.0: IP address to listen on (0.0.0.0 to listen on all interfaces)
  - 514: Port number to listen on (standard syslog port)
- Exporter configuration:
  - creds_file_path: Full path to ingestion authentication file:
    - Linux: /etc/bindplane-agent/ingestion-auth.json
    - Windows: C:\Program Files\observIQ OpenTelemetry Collector\ingestion-auth.json
  - YOUR_CUSTOMER_ID: Customer ID from the Get customer ID section
  - endpoint: Regional endpoint URL:
    - US: malachiteingestion-pa.googleapis.com
    - Europe: europe-malachiteingestion-pa.googleapis.com
    - Asia: asia-southeast1-malachiteingestion-pa.googleapis.com
    - See Regional Endpoints for complete list
  - log_type: Log type exactly as it appears in Chronicle (CISCO_ACS)

Save the configuration file

After editing, save the file:
- Linux: Press Ctrl+O, then Enter, then Ctrl+X
- Windows: Click File > Save

Restart the Bindplane agent to apply the changes

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

sudo systemctl restart observiq-otel-collector

Verify the service is running:

  sudo systemctl status observiq-otel-collector

Check logs for errors:

  sudo journalctl -u observiq-otel-collector -f

To restart the Bindplane agent in Windows, choose one of the following options:
- Command Prompt or PowerShell as administrator:
```
net stop observiq-otel-collector && net start observiq-otel-collector
```
- Services console:
  1. Press Win+R, type services.msc, and press Enter.
  2. Locate observIQ OpenTelemetry Collector.
  3. Right-click and select Restart.
  4. Verify the service is running:
```
sc query observiq-otel-collector
```
  5. Check logs for errors:
```
type "C:\Program Files\observIQ OpenTelemetry Collector\log\collector.log"
```

Configure Syslog forwarding on Cisco Secure ACS

Sign in to the Cisco Secure ACS web interface.
Go to System Administration > Configuration > Log Configuration > Remote Log Targets.
Click Create to add a new remote log target.
Provide the following configuration details:
- Name: Enter a descriptive name (for example, Google-SecOps-Bindplane).
- Description: Enter a description (optional).
- IP Address: Enter the IP address of the Bindplane agent host.
- Port: Enter 514.
- Facility Code: Select LOCAL6 (or your preferred facility).
Click Submit.
Go to System Administration > Configuration > Log Configuration > Logging Categories.
Select the log categories to forward:
- AAA Audit
- AAA Diagnostics
- Administrative and Operational Audit
- System Diagnostics
For each selected category, click the category name.
Go to the Remote Log Target tab.
Move the created remote log target (for example, Google-SecOps-Bindplane) from Available to Selected.
Click Save.
Verify syslog messages are being sent by checking the Bindplane agent logs.

UDM mapping table

Log Field	UDM Mapping	Logic
Acct-Authentic	additional.fields[].value.string_value	Value is taken from the Acct-Authentic field.
Acct-Delay-Time	additional.fields[].value.string_value	Value is taken from the Acct-Delay-Time field.
Acct-Input-Octets	additional.fields[].value.string_value	Value is taken from the Acct-Input-Octets field.
Acct-Input-Packets	additional.fields[].value.string_value	Value is taken from the Acct-Input-Packets field.
Acct-Output-Octets	additional.fields[].value.string_value	Value is taken from the Acct-Output-Octets field.
Acct-Output-Packets	additional.fields[].value.string_value	Value is taken from the Acct-Output-Packets field.
Acct-Session-Id	additional.fields[].value.string_value	Value is taken from the Acct-Session-Id field.
Acct-Session-Time	additional.fields[].value.string_value	Value is taken from the Acct-Session-Time field.
Acct-Status-Type	additional.fields[].value.string_value	Value is taken from the Acct-Status-Type field.
Acct-Terminate-Cause	additional.fields[].value.string_value	Value is taken from the Acct-Terminate-Cause field.
ACSVersion	additional.fields[].value.string_value	Value is taken from the ACSVersion field.
AD-Domain	principal.group.group_display_name	Value is taken from the AD-Domain field.
AD-IP-Address	principal.ip	Value is taken from the AD-IP-Address field.
Called-Station-ID	additional.fields[].value.string_value	Value is taken from the Called-Station-ID field.
Calling-Station-ID	additional.fields[].value.string_value	Value is taken from the Calling-Station-ID field.
Class	additional.fields[].value.string_value	Value is taken from the Class field.
CmdSet	(not mapped)	Not mapped to the IDM object.
ConfigVersionId	additional.fields[].value.number_value	Value is taken from the ConfigVersionId field and converted to a float.
DestinationIPAddress	target.ip, intermediary.ip	Value is taken from the DestinationIPAddress field. intermediary.ip is derived from Device IP Address.
DestinationPort	target.port	Value is taken from the DestinationPort field and converted to an integer.
Device IP Address	intermediary.ip	Value is taken from the Device IP Address field.
Device Port	intermediary.port	Value is taken from the Device Port field and converted to an integer.
DetailedInfo	security_result.summary, security_result.description, security_result.action	If DetailedInfo is "Authentication succeed", security_result.summary is "successful login occurred" and security_result.action is ALLOW. If DetailedInfo contains "Invalid username or password specified", security_result.summary is "failed login occurred" and security_result.action is BLOCK. security_result.description is derived from log_header.
Framed-IP-Address	principal.ip	Value is taken from the Framed-IP-Address field.
Framed-Protocol	additional.fields[].value.string_value	Value is taken from the Framed-Protocol field.
NAS-IP-Address	target.ip	Value is taken from the NAS-IP-Address field.
NAS-Port	additional.fields[].value.string_value	Value is taken from the NAS-Port field.
NAS-Port-Id	target.port	Value is taken from the NAS-Port-Id field and converted to an integer.
NAS-Port-Type	additional.fields[].value.string_value	Value is taken from the NAS-Port-Type field.
NetworkDeviceName	target.hostname	Value is taken from the NetworkDeviceName field.
Protocol	additional.fields[].value.string_value	Value is taken from the Protocol field.
RadiusPacketType	(not mapped)	Not mapped to the IDM object.
Remote-Address	principal.ip, target.ip	Value is taken from the Remote-Address field and parsed as an IP address. It is mapped to principal.ip for authentication events and target.ip for accounting and diagnostic events.
RequestLatency	additional.fields[].value.string_value	Value is taken from the RequestLatency field.
Response	principal.user.userid	If Response contains "User-Name", the username is extracted and mapped to principal.user.userid.
SelectedAccessService	additional.fields[].value.string_value	Value is taken from the SelectedAccessService field.
SelectedAuthenticationIdentityStores	security_result.detection_fields[].value	Value is taken from the SelectedAuthenticationIdentityStores field.
SelectedAuthorizationProfiles	security_result.detection_fields[].value	Value is taken from the SelectedAuthorizationProfiles field.
Service-Type	additional.fields[].value.string_value	Value is taken from the Service-Type field.
Tunnel-Client-Endpoint	additional.fields[].value.string_value	Value is taken from the Tunnel-Client-Endpoint field and parsed as an IP address.
User	target.user.userid	Value is taken from the User field.
UserName	target.user.userid, principal.mac	If UserName is a MAC address, it is parsed and mapped to principal.mac. Otherwise, it is mapped to target.user.userid.
ac-user-agent	network.http.user_agent	Value is taken from the ac-user-agent field.
cat	metadata.description	Value is taken from the cat field.
device-mac	principal.mac	Value is taken from the device-mac field, colons are added, and the value is converted to lowercase. If device-mac is "00", it is replaced with "00:00:00:00:00:00".
device-platform	principal.asset.platform_software.platform	If device-platform is "win", the value "WINDOWS" is assigned to principal.asset.platform_software.platform.
device-platform-version	principal.asset.platform_software.platform_version	Value is taken from the device-platform-version field.
device-public-mac	principal.mac	Value is taken from the device-public-mac field, hyphens are replaced with colons, and the value is converted to lowercase.
device-type	principal.asset.hardware.model	Value is taken from the device-type field.
device-uid	principal.asset.asset_id	Value is taken from the device-uid field and prepended with "ASSET ID: ".
device-uid-global	principal.asset.product_object_id	Value is taken from the device-uid-global field.
hostname	principal.hostname	Value is taken from the hostname field.
ip:source-ip	principal.ip	Value is taken from the ip:source-ip field.
kv.ADDomain	(not mapped)	Not mapped to the IDM object.
kv.Airespace-Wlan-Id	(not mapped)	Not mapped to the IDM object.
kv.AuthenticationIdentityStore	(not mapped)	Not mapped to the IDM object.
kv.AVPair	(not mapped)	Not mapped to the IDM object.
kv.CVPN3000/ASA/PIX7.x-DAP-Tunnel-Group-Name	(not mapped)	Not mapped to the IDM object.
kv.CVPN3000/ASA/PIX7.x-Group-Based-Address-Pools	(not mapped)	Not mapped to the IDM object.
kv.ExternalGroups	(not mapped)	Not mapped to the IDM object.
kv.FailureReason	(not mapped)	Not mapped to the IDM object.
kv.IdentityAccessRestricted	(not mapped)	Not mapped to the IDM object.
kv.IdentityGroup	(not mapped)	Not mapped to the IDM object.
kv.NAS-Identifier	(not mapped)	Not mapped to the IDM object.
kv.SelectedShellProfile	(not mapped)	Not mapped to the IDM object.
kv.ServiceSelectionMatchedRule	(not mapped)	Not mapped to the IDM object.
kv.State	(not mapped)	Not mapped to the IDM object.
kv.Step	(not mapped)	Not mapped to the IDM object.
kv.Tunnel-Medium-Type	(not mapped)	Not mapped to the IDM object.
kv.Tunnel-Private-Group-ID	(not mapped)	Not mapped to the IDM object.
kv.Tunnel-Type	(not mapped)	Not mapped to the IDM object.
kv.UseCase	(not mapped)	Not mapped to the IDM object.
kv.UserIdentityGroup	(not mapped)	Not mapped to the IDM object.
kv.VendorSpecific	(not mapped)	Not mapped to the IDM object.
kv.attribute-131	(not mapped)	Not mapped to the IDM object.
kv.attribute-89	(not mapped)	Not mapped to the IDM object.
kv.cisco-av-pair	(not mapped)	Not mapped to the IDM object.
kv.cisco-av-pair:CiscoSecure-Group-Id	(not mapped)	Not mapped to the IDM object.
leef_version	(not mapped)	Not mapped to the IDM object.
log_header	metadata.description	Value is taken from the log_header field.
log_id	metadata.product_log_id	Value is taken from the log_id field.
log_type	metadata.product_event_type	Value is taken from the log_type field.
message_severity	(not mapped)	Not mapped to the IDM object.
product	metadata.product_name	Value is taken from the product field.
product_version	metadata.product_version	Value is taken from the product_version field.
server_host	target.hostname	Value is taken from the server_host field.
timestamp	metadata.event_timestamp	Value is taken from the timestamp field and the timezone field (after removing the colon). The combined value is parsed as a timestamp.
url	network.dns.questions[].name	Value is taken from the url field.
vendor	metadata.vendor_name	Value is taken from the vendor field. Set to "GENERIC_EVENT" initially, then potentially overwritten based on the log_type and parsed fields. Can be "USER_LOGIN", "USER_UNCATEGORIZED", "NETWORK_DNS", "NETWORK_CONNECTION", "STATUS_UPDATE", or "STATUS_UNCATEGORIZED". Set to "Cisco" initially, then potentially overwritten by the vendor field. Set to "ACS" initially, then potentially overwritten by the product field. Set to "CISCO_ACS". Set to "USERNAME_PASSWORD". Set to "TACACS". Set to "UDP" for RADIUS accounting and diagnostic events. Set to "DNS" for DNS events. Derived from the security_action field, which is set based on whether the login was successful or not. Set to "successful login occurred" for successful logins and "failed login occurred" for failed logins. May also be set to "passed" for certain identity store diagnostic events. Set to "LOW" for failed login attempts. Constructed by prepending "ASSET ID: " to the device-uid field.

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