Cisco Firesight Appliance – Allowing Domain Authentication


KB ID 0001117 Dtd 18/12/15


Once deployed, authentication is handled by the appliances own internal user database, in larger organisations this is a little impractical. So the ability to create an Active Directory Group, and delegate access to Firesight to members of that group is a little more versatile.


I’m making the assumption that the appliance does not already have external authentication setup at all, so I’ll cover everything from start to finish.

Logon to the Appliance > System > Local User Management > External Authentication > Create External Authentication Object.

Foresight Active Directory
  • Authentication Method: LDAP
  • Name: Chose a sensible name for the connection.
  • Server Type: MS Active Directory
  • Host Name/IP Address: the IP of your domain controller
  • Port:389 (this is standard LDAP)
Sourcefire LDAP

If you have a second Domain Controller enter the details here.

Foresight Backup Server

Note: In Active Directory,¬†I’ve created a USER to make the connection to Active Directory with, and I’ve also created a SECURITY GROUP that my administrators will be in.

AD users and Groups Firesight

You can use the ldp.exe tool to locate and find the correct LDAP path for the user you created, (and the group because you will need that in a minute as well).

  • Base DN: Usually the root of the domain, in standard LDAP format.
  • Username: The LDAP path to the user you created.
  • Password: For the user above.
  • UI Access Attribute: sAMAccountName
  • Shell¬†Access Attribute: sAMAccountName
LDAP Parameters Firesight

I’m simply having one administrative group, if you have a granular RBAC requirement, there are a number of pre-configured roles you can assign your AD groups to, (or you can create custom ones). So I’m adding the LDAP path of my administrators group to the ‘Administrator’ role.

Also set the default role to ‘Security Analyst (Read Only).

Group Authentication firesight
  • Group Member Attribute: member.
  • Username: A user in the AD Administrative group you created.
  • Password: Password for the above account.

Press ‘Test’

Test AD Authentication

All being well you should see a success.

External Authentication Test

You now need to add this to the policy being applied to this appliance. System > Local System Policy > Select the policy in use  >Edit.

System Policy AD Authentication

External Authentication

  • Status: Enabled
  • Default User Role: System Analyst (Read Only)

Finally change the slider button and ensure it is ticked. Save policy and exit.

Firepower Services AD

Now apply the policy (green tick).

SourceFire System Policy

Tick the appliance > Apply.

Apply Sourcefire Policy


Initial System Policy

Now you can login with your administrative AD accounts.

FireSight Logon

You can also create a local user to match an AD account.

Firesight Local User

And get the appliance to use AD for authentication of this user.


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Author: PeteLong

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