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Cherry-pick #19149 to 7.8: [Filebeat] Fix Cisco ASA dissect pattern for 313008 & 313009 #19267

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Jul 6, 2020
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Cherry-pick #19149 to 7.8: [Filebeat] Fix Cisco ASA dissect pattern for 313008 & 313009 #19267

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1 change: 1 addition & 0 deletions CHANGELOG.next.asciidoc
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Expand Up @@ -127,6 +127,7 @@ https://github.com/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d
- Fix `googlecloud.audit` pipeline to only take in fields that are explicitly defined by the dataset. {issue}18465[18465] {pull}18472[18472]
- Fix a rate limit related issue in httpjson input for Okta module. {issue}18530[18530] {pull}18534[18534]
- Fix tls mapping in suricata module {issue}19492[19492] {pull}19494[19494]
- Fix Cisco ASA dissect pattern for 313008 & 313009 messages. {pull}19149[19149]

*Heartbeat*

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2 changes: 2 additions & 0 deletions x-pack/filebeat/module/cisco/asa/test/asa-fix.log
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Expand Up @@ -3,3 +3,5 @@ Apr 17 2020 14:00:31 SNL-ASA-VPN-A01 : %ASA-4-106023: Deny icmp src Inside:10.12
Apr 15 2013 09:36:50: %ASA-4-106023: Deny tcp src dmz:10.123.123.123/6316 dst outside:10.123.123.123/53 type 3, code 0, by access-group "acl_dmz" [0xe3afb522, 0x0]
Apr 17 2020 14:16:20 SNL-ASA-VPN-A01 : %ASA-4-106023: Deny udp src Inside:10.123.123.123/57621(LOCAL\Elastic) dst Outside:10.123.123.123/57621 by access-group "Inside_access_in" [0x0, 0x0]
Apr 17 2020 14:15:07 SNL-ASA-VPN-A01 : %ASA-2-106017: Deny IP due to Land Attack from 10.123.123.123 to 10.123.123.123
Apr 17 2020 14:15:07 SNL-ASA-VPN-A01 : %ASA-3-313008: Denied IPv6-ICMP type=134, code=0 from fe80::1ff:fe23:4567:890a on interface ISP1
Jun 08 2020 12:59:57: %ASA-4-313009: Denied invalid ICMP code 9, for Inside:10.255.0.206/8795 (10.255.0.206/8795) to identity:10.12.31.51/0 (10.12.31.51/0), ICMP id 295, ICMP type 8
61 changes: 61 additions & 0 deletions x-pack/filebeat/module/cisco/asa/test/asa-fix.log-expected.json
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Expand Up @@ -148,5 +148,66 @@
"tags": [
"cisco-asa"
]
},
{
"cisco.asa.icmp_code": 0,
"cisco.asa.icmp_type": 134,
"cisco.asa.message_id": "313008",
"cisco.asa.source_interface": "ISP1",
"event.action": "firewall-rule",
"event.code": 313008,
"event.dataset": "cisco.asa",
"event.module": "cisco",
"event.original": "%ASA-3-313008: Denied IPv6-ICMP type=134, code=0 from fe80::1ff:fe23:4567:890a on interface ISP1",
"event.outcome": "deny",
"event.severity": 3,
"event.timezone": "-02:00",
"fileset.name": "asa",
"host.hostname": "SNL-ASA-VPN-A01",
"input.type": "log",
"log.level": "error",
"log.offset": 853,
"network.iana_number": 58,
"network.transport": "ipv6-icmp",
"service.type": "cisco",
"source.address": "fe80::1ff:fe23:4567:890a",
"source.ip": "fe80::1ff:fe23:4567:890a",
"tags": [
"cisco-asa"
]
},
{
"cisco.asa.destination_interface": "identity",
"cisco.asa.icmp_code": 9,
"cisco.asa.mapped_destination_ip": "10.12.31.51",
"cisco.asa.mapped_destination_port": 0,
"cisco.asa.mapped_source_ip": "10.255.0.206",
"cisco.asa.mapped_source_port": 8795,
"cisco.asa.message_id": "313009",
"cisco.asa.source_interface": "Inside",
"destination.address": "10.12.31.51",
"destination.ip": "10.12.31.51",
"destination.port": 0,
"event.action": "firewall-rule",
"event.code": 313009,
"event.dataset": "cisco.asa",
"event.module": "cisco",
"event.original": "%ASA-4-313009: Denied invalid ICMP code 9, for Inside:10.255.0.206/8795 (10.255.0.206/8795) to identity:10.12.31.51/0 (10.12.31.51/0), ICMP id 295, ICMP type 8",
"event.outcome": "deny",
"event.severity": 4,
"event.timezone": "-02:00",
"fileset.name": "asa",
"input.type": "log",
"log.level": "warning",
"log.offset": 989,
"network.iana_number": 1,
"network.transport": "icmp",
"service.type": "cisco",
"source.address": "10.255.0.206",
"source.ip": "10.255.0.206",
"source.port": 8795,
"tags": [
"cisco-asa"
]
}
]
4 changes: 2 additions & 2 deletions x-pack/filebeat/module/cisco/shared/ingest/asa-ftd-pipeline.yml
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Expand Up @@ -289,11 +289,11 @@ processors:
- dissect:
if: "ctx._temp_.cisco.message_id == '313008'"
field: "message"
pattern: "%{event.outcome} %{network.transport} type=%{_temp_.cisco.icmp_type} , code=%{_temp_.cisco.icmp_code} from %{source.address} on interface %{_temp_.cisco.source_interface}"
pattern: "%{event.outcome} %{network.transport} type=%{_temp_.cisco.icmp_type}, code=%{_temp_.cisco.icmp_code} from %{source.address} on interface %{_temp_.cisco.source_interface}"
- dissect:
if: "ctx._temp_.cisco.message_id == '313009'"
field: "message"
pattern: "%{event.outcome} invalid %{network.transport} code %{_temp_.cisco.icmp_code} , for %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} (%{_temp_.natsrcip}/%{_temp_.cisco.mapped_source_port}) to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} (%{_temp_.natdstip}/%{_temp_.cisco.mapped_destination_port})%{}"
pattern: "%{event.outcome} invalid %{network.transport} code %{_temp_.cisco.icmp_code}, for %{_temp_.cisco.source_interface}:%{source.address}/%{source.port} (%{_temp_.natsrcip}/%{_temp_.cisco.mapped_source_port}) to %{_temp_.cisco.destination_interface}:%{destination.address}/%{destination.port} (%{_temp_.natdstip}/%{_temp_.cisco.mapped_destination_port})%{}"
- dissect:
if: "ctx._temp_.cisco.message_id == '322001'"
field: "message"
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