SANS ISC: Submit Dshield ASA Logs

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SANS ISC InfoSec Forums

Recently I made some small modifications to the Dshield Linux Cisco PIX submission perl script (https://www.dshield.org/clients/framework/cisco.tar.gz).  This allows anyone with an ASA or Cisco Security Manager(CSM) to submit logs to the project with ease.

1. Setup the ASA or CSM to syslog to a server. (http://bit.ly/1AF6vOv)

2. Edit the config of the dshield.cnf and place it into /etc/

   1. Note: If sending emails, you need a SMTP setup. This script does not have it built-in.

3. Setup a cron, to submit the logs.

Troubleshooting

• Initially it's best to have it cc you the logs so you can validate that everything is working via the dshield.cnf file.

• If using postfix, make sure that the message size limit is very high, as this will not attach a compressed file, it’s actually has the logs in the message of the email. Default size is 10MB

  • /etc/postfix/main.cf

  • message_size_limit =

• If the email goes through, check the ISC portal My Account -> My Reports. You should see when you last submitted logs. This may lag behind several hours before the website updates, so don’t worry on first submission if it takes a bit.

Now get submitting your logs!

--

Tom Webb