Block older SSL and TLS versions

HochStufe 1Manuelle Prüfungcisco-ftd

Beschreibung

Transport Layer Protocol or TLS utilities cryptography to encrypt web traffic. Firepower Threat Defense can block older TLS and SSL version to help protect the network from compromise. It is recommended that you move to TLS 1.3 for your enterprise. By using TLS 1.3 you can enhance the security and performance of you network communications while maintaining privacy and complying with modern standards. Not reliably checkable from an exported configuration. Reported as SKIP with review instructions.

So wird geprüft

Prüfmethode: Manuelle Prüfung

Diese Empfehlung kann nicht automatisch geprüft werden. Ein Scan führt sie mit diesen Anweisungen auf, wenn Sie --include-manual übergeben.

Not reliably checkable from an exported configuration. Policies > Access Control > SSL Ensure that a rule exists blocking older versions of SSL and TLS.

So wird behoben

Behebungsmethode: Anleitung oder Infrastruktur-Patch

Policies > Access Control > SSL 1. Click add rule 2. In the _Name_ field enter a name for the rule 3. From the _Action_ list select Block or Block with reset 4. Click _Version_ 5. Select older versions of TLS 6. Save Rule Because this is a specific rule, order it earlier in your policy than more general rules such as application-matching rules.

Eigenschaften

Betriebssysteme: Beliebig
Tags: cisco-ftdnetworkhardening
Referenz: CIS Cisco Firepower Threat Defense Benchmark v1.0.0 - 3.2.2 Block older SSL and TLS versions