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Cherry-pick #20245 to 7.9: Cisco ASA: Fix message 106100 #20277

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Jul 29, 2020
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Cherry-pick #20245 to 7.9: Cisco ASA: Fix message 106100 #20277

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1 change: 1 addition & 0 deletions CHANGELOG.next.asciidoc
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Original file line number Diff line number Diff line change
Expand Up @@ -125,6 +125,7 @@ https://github.com/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d
- Fix s3 input parsing json file without expand_event_list_from_field. {issue}19902[19902] {pull}19962[19962]
- Ignore missing in Zeek module when dropping unnecessary fields. {pull}19984[19984]
- Fix millisecond timestamp normalization issues in CrowdStrike module {issue}20035[20035], {pull}20138[20138]
- Fix support for message code 106100 in Cisco ASA and FTD. {issue}19350[19350] {pull}20245[20245]

*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 @@ -5,3 +5,5 @@ Apr 17 2020 14:16:20 SNL-ASA-VPN-A01 : %ASA-4-106023: Deny udp src Inside:10.123
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
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]
86 changes: 86 additions & 0 deletions x-pack/filebeat/module/cisco/asa/test/asa-fix.log-expected.json
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Expand Up @@ -299,5 +299,91 @@
"cisco-asa",
"forwarded"
]
},
{
"cisco.asa.destination_interface": "inside",
"cisco.asa.message_id": "106100",
"cisco.asa.rule_name": "incoming",
"cisco.asa.source_interface": "dmz2",
"destination.address": "127.3.4.5",
"destination.ip": "127.3.4.5",
"destination.port": 53,
"event.action": "firewall-rule",
"event.category": [
"network"
],
"event.code": 106100,
"event.dataset": "cisco.asa",
"event.kind": "event",
"event.module": "cisco",
"event.original": "%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]",
"event.outcome": "allow",
"event.severity": 6,
"event.timezone": "-02:00",
"event.type": [
"info",
"allowed"
],
"fileset.name": "asa",
"input.type": "log",
"log.level": "informational",
"log.offset": 1171,
"network.iana_number": 17,
"network.transport": "udp",
"related.ip": [
"127.2.3.4",
"127.3.4.5"
],
"service.type": "cisco",
"source.address": "127.2.3.4",
"source.ip": "127.2.3.4",
"source.port": 56575,
"tags": [
"cisco-asa",
"forwarded"
]
},
{
"cisco.asa.destination_interface": "inside",
"cisco.asa.message_id": "106100",
"cisco.asa.rule_name": "incoming",
"cisco.asa.source_interface": "dmz2",
"destination.address": "127.3.4.5",
"destination.ip": "127.3.4.5",
"destination.port": 53,
"event.action": "firewall-rule",
"event.category": [
"network"
],
"event.code": 106100,
"event.dataset": "cisco.asa",
"event.kind": "event",
"event.module": "cisco",
"event.original": "%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]",
"event.outcome": "allow",
"event.severity": 6,
"event.timezone": "-02:00",
"event.type": [
"info",
"allowed"
],
"fileset.name": "asa",
"input.type": "log",
"log.level": "informational",
"log.offset": 1334,
"network.iana_number": 17,
"network.transport": "udp",
"related.ip": [
"127.2.3.4",
"127.3.4.5"
],
"service.type": "cisco",
"source.address": "127.2.3.4",
"source.ip": "127.2.3.4",
"source.port": 56575,
"tags": [
"cisco-asa",
"forwarded"
]
}
]
2 changes: 1 addition & 1 deletion x-pack/filebeat/module/cisco/shared/ingest/asa-ftd-pipeline.yml
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Expand Up @@ -253,7 +253,7 @@ processors:
- dissect:
if: "ctx._temp_.cisco.message_id == '106100'"
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}) %{}"
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'"
field: "message"
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