Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Fix tls mapping in suricata module #19494

Merged
merged 4 commits into from
Jul 2, 2020
Merged
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 1 addition & 0 deletions CHANGELOG.next.asciidoc
Original file line number Diff line number Diff line change
Expand Up @@ -199,6 +199,7 @@ https://github.com/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d
- Fix date and timestamp formats for fortigate module {pull}19316[19316]
- Fix memory leak in tcp and unix input sources. {pull}19459[19459]
- Add missing `default_field: false` to aws filesets fields.yml. {pull}19568[19568]
- Fix tls mapping in suricata module {issue}19492[19492] {pull}19494[19494]

*Heartbeat*

Expand Down
30 changes: 30 additions & 0 deletions filebeat/docs/fields.asciidoc
Original file line number Diff line number Diff line change
Expand Up @@ -34596,6 +34596,36 @@ type: keyword
--
*`suricata.eve.tls.ja3s.string`*::
+
--
type: keyword
--
*`suricata.eve.tls.ja3s.hash`*::
+
--
type: keyword
--
*`suricata.eve.tls.ja3.string`*::
+
--
type: keyword
--
*`suricata.eve.tls.ja3.hash`*::
+
--
type: keyword
--
*`suricata.eve.app_proto_ts`*::
+
--
Expand Down
18 changes: 18 additions & 0 deletions x-pack/filebeat/module/suricata/eve/_meta/fields.yml
Original file line number Diff line number Diff line change
Expand Up @@ -665,6 +665,24 @@
- name: subject
type: keyword

- name: ja3s
type: group
default_field: false
fields:
- name: string
type: keyword
- name: hash
type: keyword

- name: ja3
type: group
default_field: false
fields:
- name: string
type: keyword
- name: hash
type: keyword

- name: app_proto_ts
type: keyword

Expand Down
37 changes: 17 additions & 20 deletions x-pack/filebeat/module/suricata/eve/config/eve.yml
Original file line number Diff line number Diff line change
Expand Up @@ -373,26 +373,23 @@ processors:
addTlsVersion(evt);
cleanupTlsSni(evt);
}
- if:
equals:
suricata.eve.event_type: tls
then:
- convert:
ignore_missing: true
ignore_failure: true
mode: copy
fields:
- {from: suricata.eve.tls.subject, to: tls.server.subject}
- {from: suricata.eve.tls.issuerdn, to: tls.server.issuer}
- {from: suricata.eve.tls.session_resumed, to: tls.resumed, type: boolean}
- {from: suricata.eve.tls.fingerprint, to: tls.server.hash.sha1}
- {from: suricata.eve.tls.sni, to: tls.client.server_name}
- {from: suricata.eve.tls.sni, to: destination.domain}
- {from: suricata.eve.tls.notbefore, to: tls.server.not_before}
- {from: suricata.eve.tls.notafter, to: tls.server.not_after}
- {from: suricata.eve.tls.ja3s, to: tls.server.ja3s}
- {from: suricata.eve.tls.certificate, to: tls.server.certificate}
- {from: suricata.eve.tls.chain, to: tls.server.certificate_chain}
- convert:
ignore_missing: true
fail_on_error: false
mode: copy
fields:
- {from: suricata.eve.tls.subject, to: tls.server.subject}
- {from: suricata.eve.tls.issuerdn, to: tls.server.issuer}
- {from: suricata.eve.tls.session_resumed, to: tls.resumed, type: boolean}
- {from: suricata.eve.tls.fingerprint, to: tls.server.hash.sha1}
- {from: suricata.eve.tls.sni, to: tls.client.server_name}
- {from: suricata.eve.tls.sni, to: destination.domain}
- {from: suricata.eve.tls.notbefore, to: tls.server.not_before}
- {from: suricata.eve.tls.notafter, to: tls.server.not_after}
- {from: suricata.eve.tls.ja3s.hash, to: tls.server.ja3s}
- {from: suricata.eve.tls.ja3.hash, to: tls.client.ja3}
- {from: suricata.eve.tls.certificate, to: tls.server.certificate}
- {from: suricata.eve.tls.chain, to: tls.server.certificate_chain}
- drop_fields:
ignore_missing: true
fields:
Expand Down
2 changes: 2 additions & 0 deletions x-pack/filebeat/module/suricata/eve/test/eve-alerts.log
Original file line number Diff line number Diff line change
Expand Up @@ -18,3 +18,5 @@
{"timestamp":"2018-10-04T09:35:00.897009+0000","flow_id":112424506237238,"in_iface":"enp0s3","event_type":"alert","src_ip":"192.168.1.146","src_port":52340,"dest_ip":"91.189.91.23","dest_port":80,"proto":"TCP","tx_id":7,"alert":{"action":"allowed","gid":1,"signature_id":2013504,"rev":5,"signature":"ET POLICY GNU\/Linux APT User-Agent Outbound likely related to package management","category":"Not Suspicious Traffic","severity":3},"http":{"hostname":"archive.ubuntu.com","url":"\/ubuntu\/dists\/bionic-updates\/universe\/binary-amd64\/by-hash\/SHA256\/5190f7afbee38b3cb32225db478fdbabd46f76eaa9c5921a13091891bf3e9bbc","http_user_agent":"Debian APT-HTTP\/1.3 (1.6.3ubuntu0.1)","http_method":"GET","protocol":"HTTP\/1.1","status":200,"length":2687},"app_proto":"http","flow":{"pkts_toserver":330,"pkts_toclient":591,"bytes_toserver":23758,"bytes_toclient":884342,"start":"2018-10-04T09:34:58.926006+0000"}}
{"timestamp":"2018-10-04T09:35:01.362208+0000","flow_id":112424506237238,"in_iface":"enp0s3","event_type":"alert","src_ip":"192.168.1.146","src_port":52340,"dest_ip":"91.189.91.23","dest_port":80,"proto":"TCP","tx_id":8,"alert":{"action":"allowed","gid":1,"signature_id":2013504,"rev":5,"signature":"ET POLICY GNU\/Linux APT User-Agent Outbound likely related to package management","category":"Not Suspicious Traffic","severity":3},"http":{"hostname":"archive.ubuntu.com","url":"\/ubuntu\/dists\/bionic-updates\/universe\/i18n\/by-hash\/SHA256\/9fe539b7036e51327cd85ca5e0a4dd4eb47f69168875de2ac9842a5e36ebd4a4","http_user_agent":"Debian APT-HTTP\/1.3 (1.6.3ubuntu0.1)","http_method":"GET","protocol":"HTTP\/1.1","length":0},"app_proto":"http","flow":{"pkts_toserver":524,"pkts_toclient":979,"bytes_toserver":36819,"bytes_toclient":1467603,"start":"2018-10-04T09:34:58.926006+0000"}}
{"timestamp":"2018-10-04T09:35:01.575088+0000","flow_id":112424506237238,"in_iface":"enp0s3","event_type":"alert","src_ip":"192.168.1.146","src_port":52340,"dest_ip":"91.189.91.23","dest_port":80,"proto":"TCP","tx_id":9,"alert":{"action":"allowed","gid":1,"signature_id":2013504,"rev":5,"signature":"ET POLICY GNU\/Linux APT User-Agent Outbound likely related to package management","category":"Not Suspicious Traffic","severity":3},"http":{"hostname":"archive.ubuntu.com","url":"\/ubuntu\/dists\/bionic-updates\/multiverse\/binary-amd64\/by-hash\/SHA256\/8ab8cb220c0e50521c589acc2bc2b43a3121210f0b035a0605972bcffd73dd16","http_user_agent":"Debian APT-HTTP\/1.3 (1.6.3ubuntu0.1)","http_method":"GET","protocol":"HTTP\/1.1","length":0},"app_proto":"http","flow":{"pkts_toserver":575,"pkts_toclient":1079,"bytes_toserver":40452,"bytes_toclient":1618380,"start":"2018-10-04T09:34:58.926006+0000"}}
{"tls":{"ja3s":{"string":"333,55555,66666-22","hash":"0993626a07ad09e1ce91293be7aa5721"},"ja3":{"string":"001,22222-33333-00-44444-66666-333-333-55555-55555-22-55555-44444-22-33-66666-77777-22-88888-99999-333-22-66666-77777-22-99999-96611-22-33-88888-33333-88888-333-22222-33333-333-222-88888-444-99999-22222-666-777-888,22-33-44-55-6,77-88-99-0-11-11-22-33-44-55,0","hash":"d92325c876e7279f4eb8c62415e3a6b7"},"notafter":"2024-07-16T14:52:35","notbefore":"2019-07-17T14:52:35","version":"TLS 1.2","sni":"hostname.domain.net","fingerprint":"00:11:22:33:44:55:66:77:88:99:aa:bb:cc:dd:ee:ff:00:11:22:33","serial":"00:11:22:33:44:55:66:77:88","issuerdn":"CN=UNKNOWN/DC=UNKNOWN/DC=UNKNOWN/C=UNKNOWN/ST=UNKNOWN/O=UNK-NOWN/OU=UNKNOWN","subject":"C=UNKNOWN, ST=UNKNOWN, L=UNKNOWN, O=UNKNOWN, OU=UNKNOWN, CN=hostname.domain.net/emailAddress=user@domain.com"},"proto":"TCP","dest_port":9080,"dest_ip":"10.232.0.237","src_port":45884,"src_ip":"10.126.2.140","event_type":"tls","in_iface":"enp5s0","flow_id":1091813059495729,"timestamp":"2018-10-04T09:35:02.796615+0000"}
{"flow":{"start":"2020-06-26T11:00:02.970011-0400","bytes_toclient":4660,"bytes_toserver":1074,"pkts_toclient":8,"pkts_toserver":7},"app_proto":"tls","tls":{"ja3s":{"string":"742,48172,30210-30","hash":"391231ba5675e42807b9e1f457b2614e"},"ja3":{"string":"718,4682-2687-2686-41992-41911-53292-53297-41969-22905-41926-41924-94181-94711-15-23-95-12-11-205,0-33-50-53-6-61-39-23-34-85-81,93-04-52,3-9-3","hash":"3f1ea03f5822e8021b60cc3e4b233181"},"notafter":"2026-06-25T17:36:29","notbefore":"2016-06-27T17:36:29","version":"TLS 1.2","sni":"host.domain.net","fingerprint":"36:3f:ee:2a:1c:fa:de:ad:be:ef:42:99:cf:a9:b0:91:01:eb:a9:cc","serial":"72:A9:2C:51","issuerdn":"C=Unknown, ST=Unknown, L=Unknown, O=Unknown, OU=Unknown, CN=Unknown","subject":"C=Unknown, ST=Unknown, L=Unknown, O=Unknown, OU=Unknown, CN=Unknown"},"alert":{"severity":3,"category":"","signature":"SURICATA TLS on unusual port","rev":1,"signature_id":2610003,"gid":1,"action":"allowed"},"proto":"TCP","dest_port":8443,"dest_ip":"10.128.2.48","src_port":64389,"src_ip":"10.137.3.54","event_type":"alert","in_iface":"enp0s31f6","flow_id":991192778198299,"timestamp":"2020-06-26T11:00:03.342282-0400"}
141 changes: 141 additions & 0 deletions x-pack/filebeat/module/suricata/eve/test/eve-alerts.log-expected.json
Original file line number Diff line number Diff line change
Expand Up @@ -1536,5 +1536,146 @@
"user_agent.original": "Debian APT-HTTP/1.3 (1.6.3ubuntu0.1)",
"user_agent.os.name": "Debian",
"user_agent.version": "1.3"
},
{
"@timestamp": "2018-10-04T09:35:02.796Z",
"destination.address": "10.232.0.237",
"destination.domain": "hostname.domain.net",
"destination.ip": "10.232.0.237",
"destination.port": 9080,
"event.category": [
"network"
],
"event.dataset": "suricata.eve",
"event.kind": "event",
"event.module": "suricata",
"event.original": "{\"tls\":{\"ja3s\":{\"string\":\"333,55555,66666-22\",\"hash\":\"0993626a07ad09e1ce91293be7aa5721\"},\"ja3\":{\"string\":\"001,22222-33333-00-44444-66666-333-333-55555-55555-22-55555-44444-22-33-66666-77777-22-88888-99999-333-22-66666-77777-22-99999-96611-22-33-88888-33333-88888-333-22222-33333-333-222-88888-444-99999-22222-666-777-888,22-33-44-55-6,77-88-99-0-11-11-22-33-44-55,0\",\"hash\":\"d92325c876e7279f4eb8c62415e3a6b7\"},\"notafter\":\"2024-07-16T14:52:35\",\"notbefore\":\"2019-07-17T14:52:35\",\"version\":\"TLS 1.2\",\"sni\":\"hostname.domain.net\",\"fingerprint\":\"00:11:22:33:44:55:66:77:88:99:aa:bb:cc:dd:ee:ff:00:11:22:33\",\"serial\":\"00:11:22:33:44:55:66:77:88\",\"issuerdn\":\"CN=UNKNOWN/DC=UNKNOWN/DC=UNKNOWN/C=UNKNOWN/ST=UNKNOWN/O=UNK-NOWN/OU=UNKNOWN\",\"subject\":\"C=UNKNOWN, ST=UNKNOWN, L=UNKNOWN, O=UNKNOWN, OU=UNKNOWN, CN=hostname.domain.net/emailAddress=user@domain.com\"},\"proto\":\"TCP\",\"dest_port\":9080,\"dest_ip\":\"10.232.0.237\",\"src_port\":45884,\"src_ip\":\"10.126.2.140\",\"event_type\":\"tls\",\"in_iface\":\"enp5s0\",\"flow_id\":1091813059495729,\"timestamp\":\"2018-10-04T09:35:02.796615+0000\"}",
"event.type": [
"protocol"
],
"fileset.name": "eve",
"input.type": "log",
"log.offset": 16546,
"network.community_id": "1:qsGDjYDIWp+kHhxotTdhPbUaWSo=",
"network.protocol": "tls",
"network.transport": "tcp",
"related.hash": [
"00112233445566778899AABBCCDDEEFF00112233"
],
"related.ip": [
"10.126.2.140",
"10.232.0.237"
],
"service.type": "suricata",
"source.address": "10.126.2.140",
"source.ip": "10.126.2.140",
"source.port": 45884,
"suricata.eve.event_type": "tls",
"suricata.eve.flow_id": 1091813059495729,
"suricata.eve.in_iface": "enp5s0",
"suricata.eve.tls.fingerprint": "00:11:22:33:44:55:66:77:88:99:aa:bb:cc:dd:ee:ff:00:11:22:33",
"suricata.eve.tls.issuerdn": "CN=UNKNOWN/DC=UNKNOWN/DC=UNKNOWN/C=UNKNOWN/ST=UNKNOWN/O=UNK-NOWN/OU=UNKNOWN",
"suricata.eve.tls.ja3.hash": "d92325c876e7279f4eb8c62415e3a6b7",
"suricata.eve.tls.ja3.string": "001,22222-33333-00-44444-66666-333-333-55555-55555-22-55555-44444-22-33-66666-77777-22-88888-99999-333-22-66666-77777-22-99999-96611-22-33-88888-33333-88888-333-22222-33333-333-222-88888-444-99999-22222-666-777-888,22-33-44-55-6,77-88-99-0-11-11-22-33-44-55,0",
"suricata.eve.tls.ja3s.hash": "0993626a07ad09e1ce91293be7aa5721",
"suricata.eve.tls.ja3s.string": "333,55555,66666-22",
"suricata.eve.tls.notafter": "2024-07-16T14:52:35",
"suricata.eve.tls.notbefore": "2019-07-17T14:52:35",
"suricata.eve.tls.serial": "00:11:22:33:44:55:66:77:88",
"suricata.eve.tls.sni": "hostname.domain.net",
"suricata.eve.tls.subject": "C=UNKNOWN, ST=UNKNOWN, L=UNKNOWN, O=UNKNOWN, OU=UNKNOWN, CN=hostname.domain.net/emailAddress=user@domain.com",
"suricata.eve.tls.version": "TLS 1.2",
"tags": [
"suricata"
],
"tls.client.ja3": "d92325c876e7279f4eb8c62415e3a6b7",
"tls.client.server_name": "hostname.domain.net",
"tls.server.hash.sha1": "00112233445566778899AABBCCDDEEFF00112233",
"tls.server.issuer": "CN=UNKNOWN/DC=UNKNOWN/DC=UNKNOWN/C=UNKNOWN/ST=UNKNOWN/O=UNK-NOWN/OU=UNKNOWN",
"tls.server.ja3s": "0993626a07ad09e1ce91293be7aa5721",
"tls.server.not_after": "2024-07-16T14:52:35",
"tls.server.not_before": "2019-07-17T14:52:35",
"tls.server.subject": "C=UNKNOWN, ST=UNKNOWN, L=UNKNOWN, O=UNKNOWN, OU=UNKNOWN, CN=hostname.domain.net/emailAddress=user@domain.com",
"tls.version": "1.2",
"tls.version_protocol": "tls"
},
{
"@timestamp": "2020-06-26T15:00:03.342Z",
"destination.address": "10.128.2.48",
"destination.bytes": 4660,
"destination.domain": "host.domain.net",
"destination.ip": "10.128.2.48",
"destination.packets": 8,
"destination.port": 8443,
"event.category": [
"network",
"intrusion_detection"
],
"event.dataset": "suricata.eve",
"event.kind": "alert",
"event.module": "suricata",
"event.original": "{\"flow\":{\"start\":\"2020-06-26T11:00:02.970011-0400\",\"bytes_toclient\":4660,\"bytes_toserver\":1074,\"pkts_toclient\":8,\"pkts_toserver\":7},\"app_proto\":\"tls\",\"tls\":{\"ja3s\":{\"string\":\"742,48172,30210-30\",\"hash\":\"391231ba5675e42807b9e1f457b2614e\"},\"ja3\":{\"string\":\"718,4682-2687-2686-41992-41911-53292-53297-41969-22905-41926-41924-94181-94711-15-23-95-12-11-205,0-33-50-53-6-61-39-23-34-85-81,93-04-52,3-9-3\",\"hash\":\"3f1ea03f5822e8021b60cc3e4b233181\"},\"notafter\":\"2026-06-25T17:36:29\",\"notbefore\":\"2016-06-27T17:36:29\",\"version\":\"TLS 1.2\",\"sni\":\"host.domain.net\",\"fingerprint\":\"36:3f:ee:2a:1c:fa:de:ad:be:ef:42:99:cf:a9:b0:91:01:eb:a9:cc\",\"serial\":\"72:A9:2C:51\",\"issuerdn\":\"C=Unknown, ST=Unknown, L=Unknown, O=Unknown, OU=Unknown, CN=Unknown\",\"subject\":\"C=Unknown, ST=Unknown, L=Unknown, O=Unknown, OU=Unknown, CN=Unknown\"},\"alert\":{\"severity\":3,\"category\":\"\",\"signature\":\"SURICATA TLS on unusual port\",\"rev\":1,\"signature_id\":2610003,\"gid\":1,\"action\":\"allowed\"},\"proto\":\"TCP\",\"dest_port\":8443,\"dest_ip\":\"10.128.2.48\",\"src_port\":64389,\"src_ip\":\"10.137.3.54\",\"event_type\":\"alert\",\"in_iface\":\"enp0s31f6\",\"flow_id\":991192778198299,\"timestamp\":\"2020-06-26T11:00:03.342282-0400\"}",
"event.severity": 3,
"event.start": "2020-06-26T15:00:02.970Z",
"event.type": [
"allowed"
],
"fileset.name": "eve",
"input.type": "log",
"log.offset": 17606,
"message": "",
"network.bytes": 5734,
"network.community_id": "1:W6fjhboFUwyEchJ3ELaqSBzDEJE=",
"network.packets": 15,
"network.protocol": "tls",
"network.transport": "tcp",
"related.hash": [
"363FEE2A1CFADEADBEEF4299CFA9B09101EBA9CC"
],
"related.ip": [
"10.137.3.54",
"10.128.2.48"
],
"rule.id": "2610003",
"rule.name": "SURICATA TLS on unusual port",
"service.type": "suricata",
"source.address": "10.137.3.54",
"source.bytes": 1074,
"source.ip": "10.137.3.54",
"source.packets": 7,
"source.port": 64389,
"suricata.eve.alert.category": "",
"suricata.eve.alert.gid": 1,
"suricata.eve.alert.rev": 1,
"suricata.eve.alert.signature": "SURICATA TLS on unusual port",
"suricata.eve.alert.signature_id": 2610003,
"suricata.eve.event_type": "alert",
"suricata.eve.flow_id": 991192778198299,
"suricata.eve.in_iface": "enp0s31f6",
"suricata.eve.tls.fingerprint": "36:3f:ee:2a:1c:fa:de:ad:be:ef:42:99:cf:a9:b0:91:01:eb:a9:cc",
"suricata.eve.tls.issuerdn": "C=Unknown, ST=Unknown, L=Unknown, O=Unknown, OU=Unknown, CN=Unknown",
"suricata.eve.tls.ja3.hash": "3f1ea03f5822e8021b60cc3e4b233181",
"suricata.eve.tls.ja3.string": "718,4682-2687-2686-41992-41911-53292-53297-41969-22905-41926-41924-94181-94711-15-23-95-12-11-205,0-33-50-53-6-61-39-23-34-85-81,93-04-52,3-9-3",
"suricata.eve.tls.ja3s.hash": "391231ba5675e42807b9e1f457b2614e",
"suricata.eve.tls.ja3s.string": "742,48172,30210-30",
"suricata.eve.tls.notafter": "2026-06-25T17:36:29",
"suricata.eve.tls.notbefore": "2016-06-27T17:36:29",
"suricata.eve.tls.serial": "72:A9:2C:51",
"suricata.eve.tls.sni": "host.domain.net",
"suricata.eve.tls.subject": "C=Unknown, ST=Unknown, L=Unknown, O=Unknown, OU=Unknown, CN=Unknown",
"suricata.eve.tls.version": "TLS 1.2",
"tags": [
"suricata"
],
"tls.client.ja3": "3f1ea03f5822e8021b60cc3e4b233181",
"tls.client.server_name": "host.domain.net",
"tls.server.hash.sha1": "363FEE2A1CFADEADBEEF4299CFA9B09101EBA9CC",
"tls.server.issuer": "C=Unknown, ST=Unknown, L=Unknown, O=Unknown, OU=Unknown, CN=Unknown",
"tls.server.ja3s": "391231ba5675e42807b9e1f457b2614e",
"tls.server.not_after": "2026-06-25T17:36:29",
"tls.server.not_before": "2016-06-27T17:36:29",
"tls.server.subject": "C=Unknown, ST=Unknown, L=Unknown, O=Unknown, OU=Unknown, CN=Unknown",
"tls.version": "1.2",
"tls.version_protocol": "tls"
}
]
Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,7 @@
"@timestamp": "2018-07-05T19:07:20.910Z",
"destination.address": "192.168.156.70",
"destination.bytes": 343,
"destination.domain": "l2.io",
"destination.ip": "192.168.156.70",
"destination.packets": 3,
"destination.port": 443,
Expand Down Expand Up @@ -96,6 +97,8 @@
"tags": [
"suricata"
],
"tls.client.server_name": "l2.io",
"tls.resumed": true,
"tls.version": "1.2",
"tls.version_protocol": "tls"
},
Expand Down
Loading