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Cherry-pick #20469 to 7.x: Fix cisco asa/ftd parsing of msgs 106102/106103 #20493

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Aug 10, 2020
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Cherry-pick #20469 to 7.x: Fix cisco asa/ftd parsing of msgs 106102/106103 #20493

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145fe01
Fix cisco asa/ftd parsing of msgs 106102/106103 (#20469)
adriansr Aug 7, 2020
eb03b1a
Correct changelog
adriansr Aug 7, 2020
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1 change: 1 addition & 0 deletions CHANGELOG.next.asciidoc
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Expand Up @@ -265,6 +265,7 @@ field. You can revert this change by configuring tags for the module and omittin
- Fix support for message code 106100 in Cisco ASA and FTD. {issue}19350[19350] {pull}20245[20245]
- Fix `fortinet` setting `event.timezone` to the system one when no `tz` field present {pull}20273[20273]
- Fix `okta` geoip lookup in pipeline for `destination.ip` {pull}20454[20454]
- Fix `cisco` asa and ftd parsing of messages 106102 and 106103. {pull}20469[20469]

*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 @@ -7,3 +7,5 @@ Apr 17 2020 14:15:07 SNL-ASA-VPN-A01 : %ASA-3-313008: Denied IPv6-ICMP type=134,
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
Oct 20 2019 15:42:53: %ASA-6-106100: access-list incoming permitted udp dmz2/127.2.3.4(56575) -> inside/127.3.4.5(53) hit-cnt 1 first hit [0x93d0e533, 0x578ef52f]
Oct 20 2019 15:42:54: %ASA-6-106100: access-list incoming permitted udp dmz2/127.2.3.4(56575)(LOCAL\\username) -> inside/127.3.4.5(53) hit-cnt 1 first hit [0x93d0e533, 0x578ef52f]
Aug 6 2020 11:01:37: %ASA-session-3-106102: access-list dev_inward_client permitted udp for user redacted outside/10.123.123.20(49721) -> inside/10.223.223.40(53) hit-cnt 1 first hit [0x3c8b88c1, 0xbee595c3]
Aug 6 2020 11:01:38: %ASA-1-106103: access-list filter denied icmp for user joe inside/10.1.2.3(64321) -> outside/1.2.33.40(8080) hit-cnt 1 first hit [0x3c8b88c1, 0xbee595c3]
101 changes: 101 additions & 0 deletions x-pack/filebeat/module/cisco/asa/test/asa-fix.log-expected.json
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Expand Up @@ -385,5 +385,106 @@
"cisco-asa",
"forwarded"
]
},
{
"cisco.asa.destination_interface": "inside",
"cisco.asa.message_id": "106102",
"cisco.asa.rule_name": "dev_inward_client",
"cisco.asa.source_interface": "outside",
"cisco.asa.suffix": "session",
"destination.address": "10.223.223.40",
"destination.ip": "10.223.223.40",
"destination.port": 53,
"event.action": "firewall-rule",
"event.category": [
"network"
],
"event.code": 106102,
"event.dataset": "cisco.asa",
"event.kind": "event",
"event.module": "cisco",
"event.original": "%ASA-session-3-106102: access-list dev_inward_client permitted udp for user redacted outside/10.123.123.20(49721) -> inside/10.223.223.40(53) hit-cnt 1 first hit [0x3c8b88c1, 0xbee595c3]",
"event.outcome": "allow",
"event.severity": 3,
"event.timezone": "-02:00",
"event.type": [
"info",
"allowed"
],
"fileset.name": "asa",
"input.type": "log",
"log.level": "error",
"log.offset": 1514,
"network.iana_number": 17,
"network.transport": "udp",
"related.ip": [
"10.123.123.20",
"10.223.223.40"
],
"related.user": [
"redacted"
],
"service.type": "cisco",
"source.address": "10.123.123.20",
"source.ip": "10.123.123.20",
"source.port": 49721,
"tags": [
"cisco-asa",
"forwarded"
],
"user.name": "redacted"
},
{
"cisco.asa.destination_interface": "outside",
"cisco.asa.message_id": "106103",
"cisco.asa.rule_name": "filter",
"cisco.asa.source_interface": "inside",
"destination.address": "1.2.33.40",
"destination.geo.continent_name": "Asia",
"destination.geo.country_iso_code": "CN",
"destination.geo.location.lat": 23.1167,
"destination.geo.location.lon": 113.25,
"destination.geo.region_iso_code": "CN-GD",
"destination.geo.region_name": "Guangdong",
"destination.ip": "1.2.33.40",
"destination.port": 8080,
"event.action": "firewall-rule",
"event.category": [
"network"
],
"event.code": 106103,
"event.dataset": "cisco.asa",
"event.kind": "event",
"event.module": "cisco",
"event.original": "%ASA-1-106103: access-list filter denied icmp for user joe inside/10.1.2.3(64321) -> outside/1.2.33.40(8080) hit-cnt 1 first hit [0x3c8b88c1, 0xbee595c3]",
"event.outcome": "deny",
"event.severity": 1,
"event.timezone": "-02:00",
"event.type": [
"info",
"denied"
],
"fileset.name": "asa",
"input.type": "log",
"log.level": "alert",
"log.offset": 1723,
"network.iana_number": 1,
"network.transport": "icmp",
"related.ip": [
"10.1.2.3",
"1.2.33.40"
],
"related.user": [
"joe"
],
"service.type": "cisco",
"source.address": "10.1.2.3",
"source.ip": "10.1.2.3",
"source.port": 64321,
"tags": [
"cisco-asa",
"forwarded"
],
"user.name": "joe"
}
]
8 changes: 2 additions & 6 deletions x-pack/filebeat/module/cisco/shared/ingest/asa-ftd-pipeline.yml
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Expand Up @@ -255,13 +255,9 @@ processors:
field: "message"
pattern: "access-list %{_temp_.cisco.list_id} %{event.outcome} %{network.transport} %{_temp_.cisco.source_interface}/%{source.address}(%{source.port})%{}-> %{_temp_.cisco.destination_interface}/%{destination.address}(%{destination.port})%{}"
- dissect:
if: "ctx._temp_.cisco.message_id == '106102'"
if: "ctx._temp_.cisco.message_id == '106102' || ctx._temp_.cisco.message_id == '106103'"
field: "message"
pattern: "access-list %{_temp_.cisco.list_id} %{event.outcome} %{network.transport} for user %{_temp_.cisco.username} %{_temp_.cisco.source_interface}/%{source.address} %{source.port} %{_temp_.cisco.destination_interface}/%{destination.address} %{destination.port} %{}"
- dissect:
if: "ctx._temp_.cisco.message_id == '106103'"
field: "message"
pattern: "access-list %{_temp_.cisco.list_id} %{event.outcome} %{network.transport} for user %{_temp_.cisco.username} %{_temp_.cisco.source_interface}/%{source.address} %{source.port} %{_temp_.cisco.destination_interface}/%{destination.address} %{destination.port} %{}"
pattern: "access-list %{_temp_.cisco.list_id} %{event.outcome} %{network.transport} for user %{user.name} %{_temp_.cisco.source_interface}/%{source.address}(%{source.port})%{}-> %{_temp_.cisco.destination_interface}/%{destination.address}(%{destination.port})%{}"
- dissect:
if: "ctx._temp_.cisco.message_id == '304001'"
field: "message"
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