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Add 21 Sigma detection rules for Cisco Meraki under tm-v1-sigma-rules/third_party_logs/Cisco/Meraki. Rules cover 802.1X deauth/failed auth, blocked DHCP responses, VPN/IKE Phase 1/2 establish/teardown, IPsec/ISAKMP legacy events, IDS signature matches (ingress/egress/blocked), AMP dispositions (malicious/blocked/retrospective), L3 firewall rule matches, rogue SSID/SSID spoofing, spanning-tree guard state changes, VRRP virtual router collisions, wireless packet flood detection, and VPN connectivity changes. Each rule targets THIRD_PARTY_LOG Meraki events using vendorParsed string conditions and is tagged under the tm-v1 taxonomy to improve Meraki detection coverage.
Update Sigma rules for Cisco/Meraki third-party logs: change logsource.product from 'Meraki' to 'Cisco' and add a productName detection (pname: 'Meraki') to each rule, combining it with the existing string conditions. This groups the rules under the Cisco third-party product while ensuring they still match Meraki-specific vendorParsed fields.
AdremelR
approved these changes
Mar 2, 2026
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Add 21 Sigma detection rules for Cisco Meraki under tm-v1-sigma-rules/third_party_logs/Cisco/Meraki. Rules cover 802.1X deauth/failed auth, blocked DHCP responses, VPN/IKE Phase 1/2 establish/teardown, IPsec/ISAKMP legacy events, IDS signature matches (ingress/egress/blocked), AMP dispositions (malicious/blocked/retrospective), L3 firewall rule matches, rogue SSID/SSID spoofing, spanning-tree guard state changes, VRRP virtual router collisions, wireless packet flood detection, and VPN connectivity changes. Each rule targets THIRD_PARTY_LOG Meraki events using vendorParsed string conditions and is tagged under the tm-v1 taxonomy to improve Meraki detection coverage.