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[Cisco ASA] Fix the processing of the protocol field for 313005 #8089

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Merged
chemamartinez merged 2 commits into from
Oct 4, 2023
Merged

[Cisco ASA] Fix the processing of the protocol field for 313005 #8089

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6946bc2
Fix the processing of the protocol field for 313005
chemamartinez Oct 4, 2023
d6a4b1b
Update changelog
chemamartinez Oct 4, 2023
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5 changes: 5 additions & 0 deletions packages/cisco_asa/changelog.yml
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@@ -1,4 +1,9 @@
# newer versions go on top
- version: 2.25.2
changes:
- description: Fix the protocol field processing in 313005.
type: bugfix
link: https://github.com/elastic/integrations/pull/8089
- version: 2.25.1
changes:
- description: Remove redundant regular expression quantifier.
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1 change: 1 addition & 0 deletions packages/cisco_asa/data_stream/log/_dev/test/pipeline/test-additional-messages.log
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Expand Up @@ -13,6 +13,7 @@ May 5 17:51:17 dev01: %FTD-4-313005: No matching connection for ICMP error mess
May 5 17:51:17 dev01: %FTD-4-313005: No matching connection for ICMP error message: icmp src srcif:192.168.2.2(LOCAL\testgroup\testuser) dst dstif:192.168.2.3 (type 3, code 3) on myif interface. Original IP payload: udp src 192.168.2.2/53 dst 192.168.2.3/10872.
May 5 17:51:17 dev01: %FTD-4-313005: No matching connection for ICMP error message: icmp src srcif:192.168.2.2(LOCAL\testuser) dst dstif:192.168.2.3 (type 3, code 3) on myif interface. Original IP payload: udp src 192.168.2.2/53 dst 192.168.2.3/10872.
<188>May 5 17:51:17: %ASA-4-313005: No matching connection for ICMP error message: icmp src srcif:192.168.2.2 dst dstif:192.168.2.3 (type 3, code 2) on srcif interface. Original IP payload: icmp src 192.168.2.2 dst 192.168.2.3 (type 0, code 0).
<188>May 5 17:51:17 dev01: %ASA-4-313005: No matching connection for ICMP error message: icmp src srcif:192.168.2.2 dst dstif:192.168.2.3 (type 3, code 2) on srcif interface. Original IP payload: protocol 51 src 192.168.2.2 dst 192.168.2.3.
May 5 18:16:21 dev01: %ASA-6-302021: Teardown ICMP connection for faddr 192.168.2.2/0 gaddr 81.2.69.144/2 laddr 10.10.10.10/2 type 8 code 0
May 5 18:22:35 dev01: %ASA-7-609001: Built local-host net:10.10.10.10
May 5 18:24:31 dev01: %ASA-7-609002: Teardown local-host identity:10.10.10.10 duration 0:00:00
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83 changes: 83 additions & 0 deletions ...s/cisco_asa/data_stream/log/_dev/test/pipeline/test-additional-messages.log-expected.json
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Expand Up @@ -1121,6 +1121,89 @@
"preserve_original_event"
]
},
{
"@timestamp": "2023-05-05T17:51:17.000Z",
"cisco": {
"asa": {
"destination_interface": "dstif",
"icmp_code": 2,
"icmp_type": 3,
"original_iana_number": 51,
"source_interface": "srcif"
}
},
"destination": {
"ip": "192.168.2.3"
},
"ecs": {
"version": "8.10.0"
},
"event": {
"action": "firewall-rule",
"category": [
"network"
],
"code": "313005",
"kind": "event",
"original": "\u003c188\u003eMay 5 17:51:17 dev01: %ASA-4-313005: No matching connection for ICMP error message: icmp src srcif:192.168.2.2 dst dstif:192.168.2.3 (type 3, code 2) on srcif interface. Original IP payload: protocol 51 src 192.168.2.2 dst 192.168.2.3.",
"severity": 4,
"timezone": "UTC",
"type": [
"info"
]
},
"host": {
"hostname": "dev01"
},
"log": {
"level": "warning",
"syslog": {
"facility": {
"code": 23
},
"priority": 188,
"severity": {
"code": 4
}
}
},
"network": {
"community_id": "1:E6cKJx0lLYUlU1tO5oQTlY25dBg=",
"iana_number": "1",
"transport": "icmp"
},
"observer": {
"egress": {
"interface": {
"name": "dstif"
}
},
"hostname": "dev01",
"ingress": {
"interface": {
"name": "srcif"
}
},
"product": "asa",
"type": "firewall",
"vendor": "Cisco"
},
"related": {
"hosts": [
"dev01"
],
"ip": [
"192.168.2.2",
"192.168.2.3"
]
},
"source": {
"ip": "192.168.2.2"
},
"tags": [
"preserve_original_event"
]
},
{
"@timestamp": "2023-05-05T18:16:21.000Z",
"cisco": {
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10 changes: 10 additions & 0 deletions packages/cisco_asa/data_stream/log/elasticsearch/ingest_pipeline/default.yml
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Expand Up @@ -607,6 +607,7 @@ processors:
description: "313005"
patterns:
- "No matching connection for ICMP error message: %{NOTSPACE:network.transport} src %{NOTCOLON:_temp_.cisco.source_interface}:%{IPORHOST} dst %{NOTCOLON:_temp_.cisco.destination_interface}:%{IPORHOST} \\(type %{NUMBER:_temp_.cisco.icmp_type}, code %{NUMBER:_temp_.cisco.icmp_code}\\) on %{NOTCOLON} interface.%{SPACE}Original IP payload: %{NOTSPACE:input.type} src %{IPORHOST:source.ip}(/%{NUMBER:source.port})? dst %{IPORHOST:destination.ip}(/%{NUMBER:destination.port})?[.]?"
- "No matching connection for ICMP error message: %{NOTSPACE:network.transport} src %{NOTCOLON:_temp_.cisco.source_interface}:%{IPORHOST} dst %{NOTCOLON:_temp_.cisco.destination_interface}:%{IPORHOST} \\(type %{NUMBER:_temp_.cisco.icmp_type}, code %{NUMBER:_temp_.cisco.icmp_code}\\) on %{NOTCOLON} interface.%{SPACE}Original IP payload: protocol %{NUMBER:_temp_.cisco.original_iana_number} src %{IPORHOST:source.ip}(/%{NUMBER:source.port})? dst %{IPORHOST:destination.ip}(/%{NUMBER:destination.port})?[.]?"
- "No matching connection for ICMP error message: %{NOTSPACE:network.transport} src %{NOTCOLON:_temp_.cisco.source_interface}:%{IPORHOST}\\(%{NOTCOLON:source.user.domain}\\\\%{NOTSPACE:source.user.group.name}\\\\%{NOTSPACE:source.user.name}\\) dst %{NOTCOLON:_temp_.cisco.destination_interface}:%{IPORHOST} \\(type %{NUMBER:_temp_.cisco.icmp_type}, code %{NUMBER:_temp_.cisco.icmp_code}\\) on %{NOTCOLON} interface.%{SPACE}Original IP payload: %{NOTSPACE:input.type} src %{IPORHOST:source.ip}(/%{NUMBER:source.port})? dst %{IPORHOST:destination.ip}(/%{NUMBER:destination.port})?[.]?"
- "No matching connection for ICMP error message: %{NOTSPACE:network.transport} src %{NOTCOLON:_temp_.cisco.source_interface}:%{IPORHOST}\\(%{NOTCOLON:source.user.domain}\\\\%{NOTSPACE:source.user.name}\\) dst %{NOTCOLON:_temp_.cisco.destination_interface}:%{IPORHOST} \\(type %{NUMBER:_temp_.cisco.icmp_type}, code %{NUMBER:_temp_.cisco.icmp_code}\\) on %{NOTCOLON} interface.%{SPACE}Original IP payload: %{NOTSPACE:input.type} src %{IPORHOST:source.ip}(/%{NUMBER:source.port})? dst %{IPORHOST:destination.ip}(/%{NUMBER:destination.port})?[.]?"
pattern_definitions:
Expand Down Expand Up @@ -1956,6 +1957,15 @@ processors:
- append:
field: error.message
value: "Processor {{{ _ingest.on_failure_processor_type }}} with tag {{{ _ingest.on_failure_processor_tag }}} in pipeline {{{ _ingest.on_failure_pipeline }}} failed with message: {{{ _ingest.on_failure_message }}}"
- convert:
field: _temp_.cisco.original_iana_number
tag: "convert_original_iana_number"
type: integer
ignore_missing: true
on_failure:
- append:
field: error.message
value: "Processor {{{ _ingest.on_failure_processor_type }}} with tag {{{ _ingest.on_failure_processor_tag }}} in pipeline {{{ _ingest.on_failure_pipeline }}} failed with message: {{{ _ingest.on_failure_message }}}"
- convert:
field: http.response.status_code
tag: "convert_http_resp_status_code"
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4 changes: 4 additions & 0 deletions packages/cisco_asa/data_stream/log/fields/fields.yml
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Expand Up @@ -225,4 +225,8 @@
type: keyword
description: >
Reason for an AAA authentication rejection.
- name: original_iana_number
type: short
description: >
IANA Protocol Number of the original IP payload.

1 change: 1 addition & 0 deletions packages/cisco_asa/docs/README.md
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Expand Up @@ -157,6 +157,7 @@ An example event for `log` looks as following:
| cisco.asa.mapped_source_port | The translated source port. | long |
| cisco.asa.message | The message associated with SIP and Skinny VoIP events | keyword |
| cisco.asa.message_id | The Cisco ASA message identifier. | keyword |
| cisco.asa.original_iana_number | IANA Protocol Number of the original IP payload. | short |
| cisco.asa.privilege.new | When a users privilege is changed this is the new value | keyword |
| cisco.asa.privilege.old | When a users privilege is changed this is the old value | keyword |
| cisco.asa.rejection_reason | Reason for an AAA authentication rejection. | keyword |
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2 changes: 1 addition & 1 deletion packages/cisco_asa/manifest.yml
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@@ -1,7 +1,7 @@
format_version: "3.0.0"
name: cisco_asa
title: Cisco ASA
version: "2.25.1"
version: "2.25.2"
description: Collect logs from Cisco ASA with Elastic Agent.
type: integration
categories:
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