CISA Known Exploited Vulnerabilities

This package allows the ingest of known exploited vulnerabilities according to the Cybersecurity and Infrastructure Security Agency of the United States of America. This information could be used to enrich or track exisiting vulnerabilities that are known to be exploited in the wild.

Version
1.2.0 (View all)
Compatible Kibana version(s)
8.13.0 or higher
Supported Serverless project types

Security
Observability
Subscription level
Basic
Level of support
Community

This integration is for CISA KEV logs. This data can be useful for current awareness of Known Exploited Vulnerabilities according to CISA and also for enriching other vulnerability scan data in the Elastic stack. The integration periodically checks for the latest CISA KEV list. It includes the following datasets for retrieving logs from the CISA KEV website:

  • vulnerability dataset: Supports vulnerabilities classified as known exploited from CISA.

Example Enrich Policy and ES|QL Correlation Query

An enrich policy can be created to have other vulnerability information be enriched based on the CVE number.

The following requests can be used to create and execute the enrich policy after the integration has been installed:

PUT /_enrich/policy/enrich_cve_with_context_cisa_kev
{
  "match": {
    "indices": ".ds-logs-cisa_kevs.vulnerability-*",
    "match_field": "vulnerability.id",
    "enrich_fields": ["cisa_kev.vulnerability.date_added", "cisa_kev.vulnerability.due_date", "cisa_kev.vulnerability.known_ransomware_campaign_use", "cisa_kev.vulnerability.name", "cisa_kev.vulnerability.notes","cisa_kev.vulnerability.product","cisa_kev.vulnerability.required_action","cisa_kev.vulnerability.vendor_project"]
  }
}

PUT /_enrich/policy/enrich_cve_with_context_cisa_kev/_execute

Here is an example ES|QL query that uses the index pattern of logs-nessus.vulnerability* to enrich the data source with CISA KEV information and keeping the top 10 results. Note, the enrich policy (shown above) must be created first:

from logs-nessus.vulnerability*
| where vulnerability.id IS NOT NULL
| keep vulnerability.*, nessus.plugin.name, host.name
| enrich enrich_cve_with_context_cisa_kev with cisa_kev.vulnerability.due_date, cisa_kev.vulnerability.known_ransomware_campaign_use, cisa_kev.vulnerability.name, cisa_kev.vulnerability.notes, cisa_kev.vulnerability.product, cisa_kev.vulnerability.required_action, cisa_kev.vulnerability.vendor_project, cisa_kev.vulnerability.date_added
| where cisa_kev.vulnerability.name IS NOT NULL
| stats count = COUNT(host.name) BY nessus.plugin.name, vulnerability.severity, cisa_kev.vulnerability.date_added, cisa_kev.vulnerability.product
| sort count desc
| keep nessus.plugin.name, vulnerability.severity, cisa_kev.vulnerability.product, cisa_kev.vulnerability.date_added, count
| limit 10

Logs

Vulnerabilities

The CISA KEV data_stream retrieves vulnerability information from the endpoint https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json.

An example event for vulnerability looks as following:

{
    "@timestamp": "2024-02-15T00:00:00.000Z",
    "agent": {
        "ephemeral_id": "39957f93-aff4-4e3f-84f0-66d18441ccd6",
        "id": "7edf8be5-ad5d-4c57-a6bd-b86bddc66601",
        "name": "docker-fleet-agent",
        "type": "filebeat",
        "version": "8.12.2"
    },
    "cisa_kev": {
        "vulnerability": {
            "date_added": "2024-02-15",
            "due_date": "2024-03-07",
            "known_ransomware_campaign_use": "Known",
            "name": "Cisco ASA and FTD Information Disclosure Vulnerability",
            "notes": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-info-disclose-9eJtycMB",
            "product": "Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)",
            "required_action": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.",
            "vendor_project": "Cisco"
        }
    },
    "data_stream": {
        "dataset": "cisa_kevs.vulnerability",
        "namespace": "ep",
        "type": "logs"
    },
    "ecs": {
        "version": "8.11.0"
    },
    "elastic_agent": {
        "id": "7edf8be5-ad5d-4c57-a6bd-b86bddc66601",
        "snapshot": false,
        "version": "8.12.2"
    },
    "event": {
        "agent_id_status": "verified",
        "category": [
            "vulnerability"
        ],
        "created": "2024-03-13T01:01:09.893Z",
        "dataset": "cisa_kevs.vulnerability",
        "ingested": "2024-03-13T01:01:21Z",
        "kind": "enrichment",
        "original": "{\"cveID\":\"CVE-2020-3259\",\"dateAdded\":\"2024-02-15\",\"dueDate\":\"2024-03-07\",\"knownRansomwareCampaignUse\":\"Known\",\"notes\":\"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-info-disclose-9eJtycMB\",\"product\":\"Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)\",\"requiredAction\":\"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.\",\"shortDescription\":\"Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) contain an information disclosure vulnerability. An attacker could retrieve memory contents on an affected device, which could lead to the disclosure of confidential information due to a buffer tracking issue when the software parses invalid URLs that are requested from the web services interface. This vulnerability affects only specific AnyConnect and WebVPN configurations.\",\"vendorProject\":\"Cisco\",\"vulnerabilityName\":\"Cisco ASA and FTD Information Disclosure Vulnerability\"}",
        "type": [
            "info"
        ]
    },
    "input": {
        "type": "httpjson"
    },
    "tags": [
        "preserve_original_event",
        "forwarded",
        "cisa-kev"
    ],
    "vulnerability": {
        "description": "Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) contain an information disclosure vulnerability. An attacker could retrieve memory contents on an affected device, which could lead to the disclosure of confidential information due to a buffer tracking issue when the software parses invalid URLs that are requested from the web services interface. This vulnerability affects only specific AnyConnect and WebVPN configurations.",
        "id": "CVE-2020-3259"
    }
}

Exported fields

FieldDescriptionType
@timestamp
Event timestamp.
date
cisa_kev.vulnerability.date_added
The date the vulnerability was added to the catalog in the format YYYY-MM-DD
date
cisa_kev.vulnerability.due_date
The date the required action is due in the format YYYY-MM-DD
date
cisa_kev.vulnerability.known_ransomware_campaign_use
'Known' if this vulnerability is known to have been leveraged as part of a ransomware campaign; 'Unknown' if CISA lacks confirmation that the vulnerability has been utilized for ransomware
keyword
cisa_kev.vulnerability.name
The name of the vulnerability
keyword
cisa_kev.vulnerability.notes
Any additional notes about the vulnerability
keyword
cisa_kev.vulnerability.product
The vulnerability product
keyword
cisa_kev.vulnerability.required_action
The required action to address the vulnerability
keyword
cisa_kev.vulnerability.vendor_project
The vendor or project name for the vulnerability
keyword
data_stream.dataset
Data stream dataset.
constant_keyword
data_stream.namespace
Data stream namespace.
constant_keyword
data_stream.type
Data stream type.
constant_keyword
input.type
Type of Filebeat input.
keyword

Changelog

VersionDetailsKibana version(s)

1.2.0

Enhancement View pull request
Update the kibana constraint to ^8.13.0. Modified the field definitions to remove ECS fields made redundant by the ecs@mappings component template.

8.13.0 or higher

1.1.0

Enhancement View pull request
Improve handling of empty responses.

8.11.4 or higher

1.0.1

Bug fix View pull request
Update logo to align w/ Elastic Integrations page, fix description wording

8.11.4 or higher

1.0.0

Enhancement View pull request
Add Enrich/ES|QL Samples to Readme, make GA.

8.11.4 or higher

0.1.0

Enhancement View pull request
Initial draft of the package

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