"Fortigate Signatures" produces wrong alarms

Hello everybody,

I think the “Fortigate Signatures” service monitoring produces some false WARN/CRIT messages in the following situation:

  • on the FortiGate you can select between the standard and the extended IPS signature package at System → FortiGuard:
    grafik
  • as the screenshot shows, I am using the extended version
  • verifying the current updates on the CLI of the FortiGate shows that only the “Attack Extended Definitions” are updated (have a look at the two LOOK HERE signs):
fg2 # diagnose autoupdate versions

Attack Definitions
---------
Version: 18.00177
Contract Expiry Date: Sun May  5 2024
Last Updated using scheduled update on Wed Oct 13 19:48:54 2021
Last Update Attempt: Thu Oct 14 07:52:19 2021 <<<<<---- LOOK HERE
Result: No Updates

Attack Extended Definitions
---------
Version: 18.00195
Contract Expiry Date: Sun May  5 2024
Last Updated using scheduled update on Thu Nov 11 18:49:36 2021
Last Update Attempt: Mon Nov 15 20:48:11 2021 <<<<<---- LOOK HERE
Result: No Updates

I think some other posting complained about the same behaviour, but none of them pointed into that direction (?)

→ I think a possible solution for the plugin would be to check if ANY of those two “IPS … age” tests are up to date. I don’t think that you will ever have a situation where BOTH are up to date at the same time (unless you toggle the option at the FortiGate every other day. :))

What do you think?
Cheers
Johannes

[checkmk cre 2.0.0p12, FortiOS v6.4.7 build1911 (GA)]

1 Like

Actually there’s a Fortigate Signature rule

Yes, sure. I am using that rule in the same way.

However, I was thinking about “fixing the problem” rather than “finding a workaround”. :slight_smile:

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