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Cherry-pick #13903 to 7.4: [SIEM] Fix Cisco ASA and FTD message 106001 producing bad network.direction #13912

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Oct 4, 2019
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Cherry-pick #13903 to 7.4: [SIEM] Fix Cisco ASA and FTD message 106001 producing bad network.direction #13912

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[SIEM] Fix Cisco ASA and FTD message 106001 producing bad network.dir…
adriansr Oct 4, 2019
976de1b
Fix changelog
adriansr Oct 4, 2019
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1 change: 1 addition & 0 deletions CHANGELOG.next.asciidoc
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Expand Up @@ -48,6 +48,7 @@ https://github.com/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d

- Fixed early expiration of templates (Netflow v9 and IPFIX). {pull}13821[13821]
- Fixed bad handling of sequence numbers when multiple observation domains were exported by a single device (Netflow V9 and IPFIX). {pull}13821[13821]
- cisco asa and ftd filesets: Fix parsing of message 106001. {issue}13891[13891] {pull}13903[13903]

*Heartbeat*

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1 change: 1 addition & 0 deletions x-pack/filebeat/module/cisco/asa/test/filtered.log
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@@ -1,2 +1,3 @@
Jan 1 01:00:27 beats asa[1234]: %ASA-7-999999: This message is not filtered.
Jan 1 01:00:30 beats asa[1234]: %ASA-8-999999: This phony message is dropped due to log level.
Jan 1 01:02:12 beats asa[1234]: %ASA-2-106001: Inbound TCP connection denied from 10.13.12.11/45321 to 192.168.33.12/443 flags URG+SYN+RST on interface eth0
31 changes: 31 additions & 0 deletions x-pack/filebeat/module/cisco/asa/test/filtered.log-expected.json
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Expand Up @@ -20,5 +20,36 @@
"tags": [
"cisco-asa"
]
},
{
"@timestamp": "2019-01-01T01:02:12.000Z",
"cisco.asa.message_id": "106001",
"cisco.asa.source_interface": "eth0",
"destination.ip": "192.168.33.12",
"destination.port": 443,
"event.action": "firewall-rule",
"event.code": 106001,
"event.dataset": "cisco.asa",
"event.module": "cisco",
"event.original": "%ASA-2-106001: Inbound TCP connection denied from 10.13.12.11/45321 to 192.168.33.12/443 flags URG+SYN+RST on interface eth0",
"event.outcome": "deny",
"event.severity": 2,
"event.timezone": "+00:00",
"fileset.name": "asa",
"host.hostname": "beats",
"input.type": "log",
"log.level": "critical",
"log.offset": 174,
"network.direction": "inbound",
"network.iana_number": 6,
"network.transport": "tcp",
"process.name": "asa",
"process.pid": 1234,
"service.type": "cisco",
"source.ip": "10.13.12.11",
"source.port": 45321,
"tags": [
"cisco-asa"
]
}
]
3 changes: 3 additions & 0 deletions x-pack/filebeat/module/cisco/shared/ingest/asa-ftd-pipeline.yml
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Expand Up @@ -960,6 +960,9 @@ processors:
- lowercase:
field: "file.type"
ignore_failure: true
- lowercase:
field: "network.direction"
ignore_failure: true

#
# Populate network.iana_number from network.transport. Also does reverse
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