Getting Data In

How do I get Splunk to log Cisco ASA Bad Password Attempts?

bihslogging
New Member

I am trying to log "Bad Passwords" or "Access Denied" attempts on the ASA and alert on them with Splunk:

I have the Cisco ASA 5510 Syslog setup and pointed to Splunk and I am getting data into Splunk but cannot search and see find the bad password attempts. I am running Cisco 8.2.1 I have changed the logging trap warnings to notifications with no effect.

logging enable
logging console notifications
logging trap warnings
logging device-id hostname
logging host inside 10.1.100.110

ASAXO# show logging
Syslog logging: enabled
Facility: 20
Timestamp logging: disabled
Standby logging: disabled
Debug-trace logging: disabled
Console logging: level notifications, 5513 messages logged
Monitor logging: disabled
Buffer logging: disabled
Trap logging: level warnings, facility 20, 5704731 messages logged
Logging to inside 10.1.100.110
History logging: disabled
Device ID: hostname "ProPathASAXO"
Mail logging: disabled
ASDM logging: disabled
ASAXO#
ASAXO#

Tags (2)
0 Karma
1 Solution

krugger
Communicator

You should be looking for:

%ASA-6-605004: Login denied from source-address/source-port to interface:destination/service for user “username”

%ASA-6-605005: Login permitted from source-address/source-port to interface:destination/service for user “username”

Log level has to be set to informational. Event ID is 605004.

View solution in original post

0 Karma

krugger
Communicator

You should be looking for:

%ASA-6-605004: Login denied from source-address/source-port to interface:destination/service for user “username”

%ASA-6-605005: Login permitted from source-address/source-port to interface:destination/service for user “username”

Log level has to be set to informational. Event ID is 605004.

0 Karma

bihslogging
New Member

Thanks that is the information i needed.

0 Karma
Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

SOK it to Me: Top 3 Benefits of Using Splunk Operator on Kubernetes that’ll Make ...

    Thursday, July 9, 2026  |  11:00AM–12:00PM PDT Duration: 1 hour (includes Q&A) Managing can feel like a ...

Upgrade Prep for 10.4, Network Observability Deep Dives, and More from Splunk Lantern

Splunk Lantern is Splunk’s customer success center that provides practical guidance from Splunk experts on key ...

Splunk Developer Day announcements: AI agents, MCP tools, Forecasting, and Custom ...

Splunk Developer Day was packed with product and platform updates for developers building in the AI ...