Falcon Exposure Management - Hosts & CVEs¶
The CrowdStrike Falcon Exposure Management integration will download data about all hosts with CVE’s that match the provided criteria. If no “entity_type” is specified, all known entities (that have a current IP address) will be listed. If no CVE “status” or “severity” is specified, all CVE’s who’s status is NOT “closed” will be downloaded.
CrowdStrike Falcon Exposure Management relies on endpoint agents and (if configured) performs “network scans” to identify network entities and vulnerabilities. As a result, frequently downloading data from Falcon Exposure Management can provide near-realtime updates. If the ‘interval_hours’ is set to 0, the integration will attempt to download additional content each time the Corelight-update service runs. See Configuration settings
Once downloaded, the data will be used to create an Input Framework file that can be used by a Zeek script to generate new logs, or enrich existing logs, such as the known_hosts.log, suricata_corelight.log or notice.log.
The input file will be published with any other input files from other integrations (if there are any). If “input” in enabled in the “push_content” settings, the file will automatically get pushed to the Fleet Manager policy and/or all sensors in the policy. See Push content settings for more details.
CrowdStrike configuration settings:
crowdstrike: id: # Falcon API Client ID secret: # Falcon API Secret member_cid: # Falcon API Member_CID (multi-tenant only) cloud: # Falcon Cloud (us-1, us-2, eu-1, us-gov-1) host_override: base_path_override: debug: false interval_hours: 0 hosts_enabled: false hosts_filename: hosts_data.tsv hosts_entity_type: # managed, unmanaged, or unsupported. If omitted, the export will include all entity types. cve_enabled: false cve_filename: cve_data.tsv cve_request_limit: 5000 # max 5000 cve_status: open,reopen # comma separated, one or more of: open, reopen, closed, expired. If omitted, the export will include all statuses. cve_severity: critical # comma separated, one or more of: critical, high, medium, low, unknown, none. If omitted, the export will include all severities.
Hosts Input file¶
The input file contains the following information (if it’s available):
IP address (required)
MAC address
Hostname
Host Unique ID: Provided by the
'aid'
field of vulnerability data.OS version
Endpoint status
Machine domain
Additional description
Customer ID
Endpoint information source (required)
The following is a sample input file created by this integration, using tab-separated values.
#fields ip mac hostname host_uid os_version status machine_domain cid desc source
192.168.56.103 00-50-56-A3-B1-C2 WEF ced83f0c26493b638086fdc7b8b2c01d - managed - e29b670f12d342e3bcc7170a288a0xxx Exposure Management CrowdStrike
10.21.0.102 00-50-56-A1-B1-C4 DC c53fdc3178ba36759c471d6b6655e324 - managed - e29b670f12d342e3bcc7170a288a0xxx Exposure Management CrowdStrike
192.168.56.104 00-50-56-A2-B1-C2 WIN10 abb6c27309cf3730bb73e8cfd732d838 Windows 10 managed lab.local e29b670f12d342e3bcc7170a288a0xxx Exposure Management CrowdStrike
192.168.1.155 92-91-E0-3E-66-A8 ss2oh 9caa11e26d1f371797e73e9b9199d481 - managed - e29b670f12d342e3bcc7170a288a0xxx Exposure Management CrowdStrike
192.168.1.120 00-0C-29-AB-75-05 fleet 81f845fe72ae32168aba94707fc8a49f - managed - e29b670f12d342e3bcc7170a288a0xxx Exposure Management CrowdStrike
192.168.12.1 - - 613cd0e8a671350e83dec735143db1e0 - unsupported - e29b670f12d342e3bcc7170a288a0xxx Exposure Management CrowdStrike
192.168.12.210 - - 5f67453d7e833b0f82ac1d7a5788142a - unmanaged - e29b670f12d342e3bcc7170a288a0xxx Exposure Management CrowdStrike
192.168.12.222 - - 5abcec34b3443f3cb7fe17c4f7100e02 - unmanaged - e29b670f12d342e3bcc7170a288a0xxx Exposure Management CrowdStrike
192.168.12.212 00-50-56-A1-1F-07 skynet 439293445449716808dec735143db1e9 Ubuntu 22.04 managed - e29b670f12d342e3bcc7170a288a0xxx Exposure Management CrowdStrike
CVE Input file¶
The input file contains the following information (if it’s available):
IP address (required)
Hostname
Host Unique ID: Provided by the
'aid'
field of vulnerability data.Machine domain
OS version
Endpoint information source (required)
Customer ID
CVE list
The following is a sample input file created by this integration, using tab-separated values.
#fields ip hostname host_uid machine_domain os_version source cid cve_list
10.21.0.102 DC fb5946b0422e4da49e4575995fb89060 windomain.local Windows Server 2016 CrowdStrike e29b670f12d342e3bcc7170a288a0xxx CVE-2022-26904,CVE-2022-34701,CVE-2020-0911,CVE-2022-24479,CVE-2020-1477
192.168.1.120 fleet 04a15f26ace249f68c583fd7be70f9db - Ubuntu 20.04 CrowdStrike e29b670f12d342e3bcc7170a288a0xxx CVE-2020-12313,CVE-2020-12319,CVE-2022-36402,CVE-2022-38096,CVE-2022-38457
192.168.1.155 ss2oh 62c850ec617843f8959f1442843bb816 - Ubuntu 20.04 CrowdStrike e29b670f12d342e3bcc7170a288a0xxx CVE-2020-12313,CVE-2020-12319,CVE-2022-36402,CVE-2022-38096,CVE-2022-38457
192.168.12.212 skynet fae3f73ce1404e0aae1626dbddfc3fe8 - Ubuntu 22.04 CrowdStrike e29b670f12d342e3bcc7170a288a0xxx CVE-2020-12313,CVE-2016-1585,CVE-2022-36227,CVE-2022-45884,CVE-2023-22995,CVE-2022-38457
192.168.56.102 DC 34a6b864b61146d6ad051a9d63a5585f windomain.local Windows Server 2016 CrowdStrike e29b670f12d342e3bcc7170a288a0xxx CVE-2017-11771,CVE-2022-34718,CVE-2019-0736,CVE-2022-35744
192.168.56.103 WEF c6f3d2351739482baf36cc6e4af65163 windomain.local Windows Server 2016 CrowdStrike e29b670f12d342e3bcc7170a288a0xxx CVE-2017-11771,CVE-2022-34718,CVE-2019-0736,CVE-2022-35744
192.168.56.103 WEF 0bb70f50a9a3470dbc3e09bd6eb18fc4 windomain.local Windows Server 2016 CrowdStrike e29b670f12d342e3bcc7170a288a0xxx CVE-2022-26904,CVE-2022-34701,CVE-2020-0911,CVE-2022-24479
192.168.56.104 WIN10 a71be784db1a40e5b0fd7e6b73f6c7b7 windomain.local Windows 10 CrowdStrike e29b670f12d342e3bcc7170a288a0xxx CVE-2021-36965,CVE-2021-43217,CVE-2022-22012,CVE-2020-9633,CVE-2021-24077
192.168.56.104 WIN10 23fac76b0e5246f8b8ba22d1bbd6bc04 windomain.local Windows 10 CrowdStrike e29b670f12d342e3bcc7170a288a0xxx CVE-2022-23279,CVE-2020-1286,CVE-2021-33784,CVE-2022-23299,CVE-2020-1391
Attention
The CrowdStrike Exposure Management integrations only create Input Framework files to be loaded on sensors. Additional Zeek scripts are required to be loaded on the sensors to use this data. If you enable these integrations, Corelight-update will upload the input files to the sensor. But if the desired script isn’t available on the sensor, the input data won’t be used.
See Zeek package management for information about using Corelight-update to manage Zeek package bundles.
See Zeek package references for examples of Zeek packages that can use this data.