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Cisco ASA App

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The Cisco ASA App gives you insight into website visitor patterns, monitors infrastructure operations, and provides easy access to threat monitoring. The App uses a predefined parser, searches, and Dashboards which provide visibility into your environment for analysis of overall usage and threats. The Cisco ASA App consists of the following main categories:

  • Connection statistics
  • Outbound connections
  • Denied connections

Log Types

The Cisco ASA App assumes logs from the Cisco Adaptive Security Appliance (ASA) firewall product.

Sample Log

Tue Aug 15 23:30:09 %ASA-6-302016: Teardown UDP connection 40 for outside:44.44.4.4/500 to inside:44.44.2.2/500 duration 0:02:02 bytes 1416

Configuring Log Collection for the Cisco ASA App

This section provides instructions for configuring log collection for the Cisco ASA App, as well as a sample log and field extraction rule.

To configure log collection, do the following:

  1. Configure your ASA to send its logs to a syslog server. ASA sends syslog on UDP port 514 by default, but you can set the protocol and port.
  2. Configure an Installed Collector appropriate for right for your host environment.
  3. Configure a Syslog Source to the same port and protocol used by your ASA.

Field Extraction Rule

This Field Extraction Rule (FER) is provided as an example to help you reduce your overall parsing time. Note that not all parse operators are supported in FERs. For more information, see Creating a Field Extraction Rule.

There is a 200 field name limit for Field Extraction Rules (FER) and once a field is persisted using a FER, it can’t be removed. You can assign different targets to the name, but do not create overlapping messages and source categories.

Click to expand
| parse regex "(?<protocol>TCP|tcp|UDP|udp|ICMP|icmp)" nodrop
| parse regex "%[\w-]+(?<log_level>\d)-(?<message_id>\d{6})" nodrop
| parse regex "bytes\s(?<bytes_in>\d*)" nodrop
| parse regex "(?<direction>[i|I]nbound|[O|o]utbound)" nodrop
| parse regex "(?:\(type\s(?<icmp_type>[^,]+),\scode\s(?<icmp_code>[^\)]+)\))?\s+by\s+access-group\s+\"\+(?<rule_name>[^\"]+)" nodrop
| parse regex "(?i)icmp\s*type=(?<icmp_type>\d+)" nodrop
| parse regex "\d{2}:\d{2}:\d{2}(?:\-\d{2}:\d{2})?\s(?<dvc>[^\s]+)" nodrop
| parse regex "(?<src_translated_ip>(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:[0-9A-Fa-f]{0,4}|:[0-9A-Fa-f]{1,4})?|(?::[0-9A-Fa-f]{1,4}){0,2})|(?::[0-9A-Fa-f]{1,4}){0,3})|(?::[0-9A-Fa-f]{1,4}){0,4})|:(?::[0-9A-Fa-f]{1,4}){0,5})(?:(?::[0-9A-Fa-f]{1,4}){2}|:(?:25[0-5]|(?:2[0-4]|1[0-9]|[1-9])?[0-9])(?:\.(?:25[0-5]|(?:2[0-4]|1[0-9]|[1-9])?[0-9])){3})|(?:(?:[0-9A-Fa-f]{1,4}:){1,6}|:):[0-9A-Fa-f]{0,4}|(?:[0-9A-Fa-f]{1,4}:){7}:)/(?:\d+)\)\s(?<src_translated_port>to|dst)\s" nodrop
| parse regex "\s+(?:to|dst(?! user)) (?:(?<dest_zone>\S+):)[\w-]*?(?<dest_ip>\d{1,3}\.\d{1,3}.\d{1,3}.\d{1,3})(?:\/(?<dest_port>\d+))?\s*(?:\(?(?<dest_translated_ip>\d{1,3}\.\d{1,3}.\d{1,3}.\d{1,3})?\/?(?<dest_translated_port>\d+)?\))?\s*(?:\((?:(?<dest_nt_domain>[\S^\\]+)\\)?(?<dest_user>[\w\-_]+)\))?" nodrop
| parse regex "\s(?:for|from|src)\s+(?:(?<src_zone>\S+):)?(?<src_ip>[\d\.]+)\/(?<src_port>\d+)\s+(?:to|dst)\s+(?:(?<dest_zone>[^:]+):)?(?<dest_ip>[\d\.]+)\/(?<dest_port>\w+)\s+" nodrop
| parse regex "\s+[Aa]ddress\s*(?<dest_ip>\d{1,3}\.\d{1,3}.\d{1,3}.\d{1,3})(?:/(?<dest_port>\d+))?\s*[Dd]iscovered\s*for\s*domain\s*(?<dest_nt_domain>[\S]+)" nodrop
| parse regex "\s+(?:to|dst(?! user)) (?:(?<dest_zone>[^\/]+)\/)?(?<dest_ipv6>(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:[0-9A-Fa-f]{0,4}|:[0-9A-Fa-f]{1,4})?|(?::[0-9A-Fa-f]{1,4}){0,2})|(?::[0-9A-Fa-f]{1,4}){0,3})|(?::[0-9A-Fa-f]{1,4}){0,4})|:(?::[0-9A-Fa-f]{1,4}){0,5})(?:(?::[0-9A-Fa-f]{1,4}){2}|:(?:25[0-5]|(?:2[0-4]|1[0-9]|[1-9])?[0-9])(?:\.(?:25[0-5]|(?:2[0-4]|1[0-9]|[1-9])?[0-9])){3})|(?:(?:[0-9A-Fa-f]{1,4}:){1,6}|:):[0-9A-Fa-f]{0,4}|(?:[0-9A-Fa-f]{1,4}:){7}:)(?:\/(?<dest_port>\S+))?\s*" nodrop
| parse regex "\s(?:to|dest)\s(?:[a-f|A-F|0-9|:]+)(?:\/\S+)?\s*\((?<dest_translated_ip>(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:[0-9A-Fa-f]{0,4}|:[0-9A-Fa-f]{1,4})?|(?::[0-9A-Fa-f]{1,4}){0,2})|(?::[0-9A-Fa-f]{1,4}){0,3})|(?::[0-9A-Fa-f]{1,4}){0,4})|:(?::[0-9A-Fa-f]{1,4}){0,5})(?:(?::[0-9A-Fa-f]{1,4}){2}|:(?:25[0-5]|(?:2[0-4]|1[0-9]|[1-9])?[0-9])(?:\.(?:25[0-5]|(?:2[0-4]|1[0-9]|[1-9])?[0-9])){3})|(?:(?:[0-9A-Fa-f]{1,4}:){1,6}|:):[0-9A-Fa-f]{0,4}|(?:[0-9A-Fa-f]{1,4}:){7}:)(?:\/(?<dest_translated_port>\S+))?\)" nodrop
| parse regex "\sfaddr (?:(?<dest_zone>\S+):)?(?<dest_ip>\d{1,3}\.\d{1,3}.\d{1,3}.\d{1,3})(?:\/(?<dest_port>\d+))?\s*(?:\((?:(?<dest_nt_domain>[^\\]+)\\)?(?<dest_user>[^\)]+)\))?" nodrop
| parse regex "\sfaddr\s(?:(?<dest_zone>[^\/]+)\/)?(?<dest_ipv6>(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:[0-9A-Fa-f]{0,4}|:[0-9A-Fa-f]{1,4})?|(?::[0-9A-Fa-f]{1,4}){0,2})|(?::[0-9A-Fa-f]{1,4}){0,3})|(?::[0-9A-Fa-f]{1,4}){0,4})|:(?::[0-9A-Fa-f]{1,4}){0,5})(?:(?::[0-9A-Fa-f]{1,4}){2}|:(?:25[0-5]|(?:2[0-4]|1[0-9]|[1-9])?[0-9])(?:\.(?:25[0-5]|(?:2[0-4]|1[0-9]|[1-9])?[0-9])){3})|(?:(?:[0-9A-Fa-f]{1,4}:){1,6}|:):[0-9A-Fa-f]{0,4}|(?:[0-9A-Fa-f]{1,4}:){7}:)\/?(?<dest_port>\d*)" nodrop
| parse regex "\sladdr (?:(?<src_zone>\S+):)?(?<src_ip>\d{1,3}\.\d{1,3}.\d{1,3}.\d{1,3})(?:\/(?<src_port>\S+))?\s*" nodrop
| parse regex "\sladdr\s(?:(?<src_zone>[^\/]+)\/)?(?<src_ipv6>(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:[0-9A-Fa-f]{0,4}|:[0-9A-Fa-f]{1,4})?|(?::[0-9A-Fa-f]{1,4}){0,2})|(?::[0-9A-Fa-f]{1,4}){0,3})|(?::[0-9A-Fa-f]{1,4}){0,4})|:(?::[0-9A-Fa-f]{1,4}){0,5})(?:(?::[0-9A-Fa-f]{1,4}){2}|:(?:25[0-5]|(?:2[0-4]|1[0-9]|[1-9])?[0-9])(?:\.(?:25[0-5]|(?:2[0-4]|1[0-9]|[1-9])?[0-9])){3})|(?:(?:[0-9A-Fa-f]{1,4}:){1,6}|:):[0-9A-Fa-f]{0,4}|(?:[0-9A-Fa-f]{1,4}:){7}:)\/?(?<src_port>\d*)" nodrop
| parse regex "\sgaddr (?<src_public_ip>\d{1,3}\.\d{1,3}.\d{1,3}.\d{1,3})\/?(?<src_public_port>\d*)" nodrop
| parse regex "\sgaddr (?<src_public_ip>(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:[0-9A-Fa-f]{0,4}|:[0-9A-Fa-f]{1,4})?|(?::[0-9A-Fa-f]{1,4}){0,2})|(?::[0-9A-Fa-f]{1,4}){0,3})|(?::[0-9A-Fa-f]{1,4}){0,4})|:(?::[0-9A-Fa-f]{1,4}){0,5})(?:(?::[0-9A-Fa-f]{1,4}){2}|:(?:25[0-5]|(?:2[0-4]|1[0-9]|[1-9])?[0-9])(?:\.(?:25[0-5]|(?:2[0-4]|1[0-9]|[1-9])?[0-9])){3})|(?:(?:[0-9A-Fa-f]{1,4}:){1,6}|:):[0-9A-Fa-f]{0,4}|(?:[0-9A-Fa-f]{1,4}:){7}:)\/?(?<src_public_port>\d*)" nodrop
| parse regex "(?:(?<src_zone>\S+)\/)?(?<src_ip>\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3})\((?<src_port>\d*)\)\s\->\s(?:(?<dest_zone>\S+)\/)?(?<dest_ip>\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3})\((?<dest_port>\d*)\)" nodrop
| parse regex "\s+(?:from|for|src(?! user)) (?:(?<src_zone>[^\/]+)\/)?(?<src_ipv6>(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:[0-9A-Fa-f]{0,4}|:[0-9A-Fa-f]{1,4})?|(?::[0-9A-Fa-f]{1,4}){0,2})|(?::[0-9A-Fa-f]{1,4}){0,3})|(?::[0-9A-Fa-f]{1,4}){0,4})|:(?::[0-9A-Fa-f]{1,4}){0,5})(?:(?::[0-9A-Fa-f]{1,4}){2}|:(?:25[0-5]|(?:2[0-4]|1[0-9]|[1-9])?[0-9])(?:\.(?:25[0-5]|(?:2[0-4]|1[0-9]|[1-9])?[0-9])){3})|(?:(?:[0-9A-Fa-f]{1,4}:){1,6}|:):[0-9A-Fa-f]{0,4}|(?:[0-9A-Fa-f]{1,4}:){7}:)(?:\/(?<src_port>\S+))?\s*" nodrop
| parse regex "\s\->\s(?:(?<dest_zone>\S+)\/)?(?<dest_ipv6>(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:(?:[0-9A-Fa-f]{1,4}:[0-9A-Fa-f]{0,4}|:[0-9A-Fa-f]{1,4})?|(?::[0-9A-Fa-f]{1,4}){0,2})|(?::[0-9A-Fa-f]{1,4}){0,3})|(?::[0-9A-Fa-f]{1,4}){0,4})|:(?::[0-9A-Fa-f]{1,4}){0,5})(?:(?::[0-9A-Fa-f]{1,4}){2}|:(?:25[0-5]|(?:2[0-4]|1[0-9]|[1-9])?[0-9])(?:\.(?:25[0-5]|(?:2[0-4]|1[0-9]|[1-9])?[0-9])){3})|(?:(?:[0-9A-Fa-f]{1,4}:){1,6}|:):[0-9A-Fa-f]{0,4}|(?:[0-9A-Fa-f]{1,4}:){7}:)\((?<dest_port>\d*)\)" nodrop
| parse regex "%ASA-\d-400\d+\sIPS:(?<signature_id>\d{4})\s(?<signature>.*)\sfrom" nodrop
| parse regex "access[\s-]group\s[\(\"]?(?<acl>[^\s\"\)]+)" nodrop
| parse regex "(?<src_ip>\d{1,3}\.\d{1,3}.\d{1,3}.\d{1,3})\s+(?<vendor_action>\S+)\s+(?:url|URL)\s+(?<dest_ip>\d{1,3}\.\d{1,3}.\d{1,3}.\d{1,3})\s*:\s*(?<url>\S*)" nodrop
| parse regex "threat-level\s*:\s*(?<vendor_severity>[^\s,]+)[\s,]+category\s*:\s*(?<vendor_category>[^\s,]+)" nodrop
| parse regex "(?<action>[Aa]uthentication [Ss]ucceeded|[Aa]uthorization [Pp]ermitted|authentication Successful|passed authentication|Login permitted|Authentication failed|Authorization denied|Can't find authorization|Authentication Failed|authentication Rejected|credentials rejected|Authentication:Dropping|login warning|login failed|failed authentication|[Cc]onnection denied|Deny inbound|Deny|Terminating|action locally|Unable to Pre-allocate|denied\s[tcp|udp|icmp]+|access denied|access requested|access permitted|limit exceeded|Dropped|Dropping|[B|b]uilt|[pP]ermitted|whitelisted|Pre-allocated|Rebuilt|redirected|discarded)" nodrop
| parse regex "(?<action>Teardown\s[A-Z]{3,4})\sconnection" nodrop
| parse regex "%ASA-\d-\d+: (?<msg>.+)" nodrop
| parse regex "\sconnection (?<session_id>\d+)" nodrop
| parse regex "access-list (?<rule>[^\s]+)" nodrop
| parse regex "[Dd]uration:?\s*(?:(?<duration_day>\d+)[dD])?\s*(?<duration_hour>\d+)[Hh]?:(?<duration_minute>\d+)[Mm]?:(?<duration_second>\d+)[Ss]?" nodrop
| parse regex "[Gg]roup\s+(?:=\s+)?(?<group>[^\s,]+)" nodrop
| parse regex "User <(?<user>\S+)>" nodrop
| parse regex "IP <(?<src_ip>\d{1,3}\.\d{1,3}.\d{1,3}.\d{1,3})>" nodrop
| parse regex "[Tt]unnel[Gg]roup\s+(?:=\s+)?(?<tunnelgroup>[^\s,]+)" nodrop | parse regex "Bytes xmt: (?<bytes_out>\d+), Bytes rcv: (?<bytes_in>\d+), Reason: (?<reason>.+)" nodrop
| parse regex "Authentication: (?<action>\S+)," nodrop
| parse regex "Session Type: (?<type>\S+)," nodrop
| parse regex "user-identity: (?<method>Add|Delete) (?:\S+) mapping (?<src_ip>\d{1,3}\.\d{1,3}.\d{1,3}.\d{1,3}) - (?<user>\S+) (?<action>\S+) - (?<reason>.+)" nodrop
| parse regex "[Aa]ddress\s\<?(?<assigned_ip>\d{1,3}\.\d{1,3}.\d{1,3}.\d{1,3})\>?\s" nodrop
| parse regex "DAP: User (?<user>\S+), Addr (?<src_ip>\d{1,3}\.\d{1,3}.\d{1,3}.\d{1,3})" nodrop
| parse regex "Connection (?<type>\S+), (?<dap_message>.+)" nodrop
| parse regex "acl\s*=\s*(?<acl>[^,\s\)]+)" nodrop
| parse regex "[gG]roup\s*=\s*(?<group>[^,\s\)]+)" nodrop
| parse regex "(?:[uU]sername|[uU]ser)\s*=\s*(?<user>[^,\s\)]+)" nodrop
| parse regex "msgid\s*=\s*(?<msgid>[^,\s\)]+)" nodrop
| parse regex "[Oo]utbound\s+\S+\s+connection\s+\d+\s+for\s+\S+\s*:\s*(?<dest_ip>[^\s\/\(]+)(?:\/(?<dest_port>\w+))?(?:\((?<dest_user>\S+)\))?\s*\(?(?<dest_translated_ip>[^\s\/\(]+)?\/?(?<dest_translated_port>\d+)?\)?\s+to\s+[^:]+:\s*(?<src_ip>[^\s\/\(]+)(?:\/(?<src_port>\w+))?(?:\((?<src_user>\S+)\))?\s*\(?(?<src_translated_ip>[^\s\/\(]+)?\/?(?<src_translated_port>\d+)?\)?"

Installing the Cisco ASA App

This section provides instructions on how to install the Cisco ASA App.

To install the app:

  1. From the left nav, select App Catalog.
    App_Catalog.png
  2. Search for your app name and select it.
  3. When you get to your app page:
    • If you want to see a preview of the dashboards included with the app before installing, scroll down to Dashboard Preview.
    • If your Sumo Logic app has multiple versions (not all apps do), select the version of the service you're using.
      add-version.png
    • Click Add Integration.
      add-integration.png
  4. On the next configuration page, Select Data Source for your App, complete the following fields:
    • Data Source. Select one of the following options:
      • Choose Source Category, and select a source category from the list; or
      • Choose Enter a Custom Data Filter, and enter a custom source category beginning with an underscore. For example, _sourceCategory=MyCategory.
    • Folder Name. You can retain the existing name or enter a custom name of your choice for the app.
    • All Folders (optional). Default location is the Personal folder in your Library. If desired, you can choose a different location and/or click New Folder to add it to a new folder.
  5. Click Next.
    next button
  6. You'll see a dialog confirming that the app was installed successfully.
    app-success.png

Once an app is installed, it will appear in your Personal folder, or other folder that you specified. From here, you can share it with your organization.

Panels will start to fill automatically. It's important to note that each panel slowly fills with data matching the time range query and received since the panel was created. Results won't be available immediately, but within 20 minutes, you'll see full graphs and maps.

Viewing Cisco ASA Dashboards

Once you've installed the Cisco ASA App, you can access preconfigured searches and dashboards that provide visual insights into your data.

Each dashboard has a set of filters that you can apply to the entire dashboard, as shown in the following example. Click the funnel icon in the top dashboard menu bar to display a scrollable list of filters that are applied across the entire dashboard.

You can use filters to drill down and examine the data on a granular level.

Each panel has a set of filters that are applied to the results for that panel only, as shown in the following example. Click the funnel icon in the top panel menu bar to display a list of panel-specific filters.

Overview

Outbound Destinations. A geolocation query tracks the number of outbound connection and displays their destinations on a map of the world. Results are displayed for the last hour. Click Show in Search to see more details of the query results.

Denied Connections by Location. Uses a geolocation query to track the number of denied connections and displays their destinations on a map of the world. Results are displayed for the last hour. Click Show in Search to see more details of the query results.

Total Denied Sources. Displays the total number of denied Sources as a single value chart for the last hour.

Bandwidth Served. Shows the amount of bandwidth served as a single value chart for the last hour.

Cisco_ASA dashboards

Firewall Detail

Connections Over Time. Provides information on inbound, outbound, and denied connections over the past hour in increments of five minutes in a stacked area chart.

Protocol Distribution Over Time. Displays data on the connection protocols being used, including GRE, UDP, and TCP, over the past hour in increments of five minutes. Displayed in a column chart.

Bandwidth Served in MBytes. Shows the bandwidth served in megabytes over the last hour in five-minute increments.

Most Severe Messages. Displays the top five most severe message alerts and their count over the last hour.

Outbound Destinations. A geolocation query tracks the number of outbound connection and displays their destinations on a map of the world. Results are displayed for the last hour. Click Show in Search to see more details of the query results.

Outbound Connections Over Time. Provides details on the number of outbound connections by country over the past hour in increments of five minutes.

Outbound Connections to High Risk Countries. Displays the number of outbound connections by country to countries considered high risk over the last hour in five-minute increments.

Denied Connections by Location. Uses a geolocation query to track the number of denied connections, and displays their destinations on a map of the world. Results are displayed for the last hour. Click Show in Search to see more details of the query results.

Top Denied Sources. Lists the top five denied sources by IP address over the last hour.

Top Denying ACLs. Displays the top ten denying ACL connections over the last hour in a bar chart.

Cisco_ASA dashboards

Logs Analytics

Count of ASA Logs by LogLevel. Displays the logs by LogLevel and Severity.

Count by Severity Code. Displays the logs by Severity Code.

Parameterized Search. Log Details with counts.

Cisco_ASA dashboards
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