I have a general IPS profile with a rule (named block-crit,high) which includes all signatures with severity 'critical' and 'high'. Action for the rule is set to 'block'. I have automatic updates on for IPS signatures. Yesterday a new signature (OpenSSL SSL/TLS MITM vulnerability) was released with severity critical. When I checked my IPS profile today i noticed that signature was correctly included in above rule (block-crit,high) but the action for this signature was set to 'default (alert)' despite the action for rule being 'block'.
Is this expected behaviour? Are all new signatures set to default action? Can you set new signatures to block?
Yes, I understand how security policy and security profiles work. I was just wondering about rules inside specific security profile in cases when one signature matches more than one rule.
So far I got 2 answers:
- rules inside security profile are matched from top to bottom
- action is set by the most strict rule for given signature
Can someone confirm which is correct?
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