Ensure all zones have Zone Protection Profiles that drop specially crafted packets

Méthode de vérification

Méthode d'audit: Revue manuelle

Cette recommandation ne peut pas être vérifiée automatiquement. Une analyse la liste avec ces instructions lorsque vous passez --include-manual.

Network > Network Profiles > Zone Protection > Packet Based Attack Protection: confirm Spoofed IP address, Mismatched overlapping TCP segment, Strict Source Routing, Loose Source Routing and Malformed are checked (set ... discard-ip-spoof yes, discard-overlapping-tcp-segment-mismatch yes, discard-strict-source-routing yes, discard-loose-source-routing yes, discard-malformed-option yes) and that all zones use the profile.

Méthode de correction

Méthode de correction: Recommandation ou correctif d'infrastructure

configure set network profiles zone-protection-profile ZPP discard-ip-spoof yes set network profiles zone-protection-profile ZPP discard-overlapping-tcp-segment-mismatch yes set network profiles zone-protection-profile ZPP discard-strict-source-routing yes set network profiles zone-protection-profile ZPP discard-loose-source-routing yes set network profiles zone-protection-profile ZPP discard-malformed-option yes commit # CIS guidance: Navigate to Network > Network Profiles > Zone Protection > Zone Protection Profile > Packet Based Attack Protection > TCP/IP Drop. Set Spoofed IP address to be checked. Set Mismatched overlapping TCP segment to be checked. Under IP Option Drop, set Strict Source Routing, Loose Source Routing, and Malformed to all be checked. Additional options may also be set if desired.