Vulnerability-Lookup

GHSA-4X46-8GG7-F9VX

Vulnerability from github – Published: 2023-10-26 06:30 – Updated: 2023-11-08 15:30

Details

It was discovered that when acting as TLS clients, Beats, Elastic Agent, APM Server, and Fleet Server did not verify whether the server certificate is valid for the target IP address; however, certificate signature validation is still performed. More specifically, when the client is configured to connect to an IP address (instead of a hostname) it does not validate the server certificate's IP SAN values against that IP address and certificate validation fails, and therefore the connection is not blocked as expected.

Severity

5.9 (Medium)


                  
                    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2023-31421"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-10-26T04:15:16Z",
    "severity": "HIGH"
  },
  "details": "It was discovered that when acting as TLS clients, Beats, Elastic Agent, APM Server, and Fleet Server did not verify whether the server certificate is valid for the target IP address; however, certificate signature validation is still performed. More specifically, when the client is configured to connect to an IP address (instead of a hostname) it does not validate the server certificate\u0027s IP SAN values against that IP address and certificate validation fails, and therefore the connection is not blocked as expected.",
  "id": "GHSA-4x46-8gg7-f9vx",
  "modified": "2023-11-08T15:30:32Z",
  "published": "2023-10-26T06:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-31421"
    },
    {
      "type": "WEB",
      "url": "https://discuss.elastic.co/t/beats-elastic-agent-apm-server-and-fleet-server-8-10-1-security-update-improper-certificate-validation-issue-esa-2023-16/343385"
    },
    {
      "type": "WEB",
      "url": "https://www.elastic.co/community/security"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2023-31421 (GCVE-0-2023-31421)

Vulnerability from cvelistv5 – Published: 2023-10-26 03:10 – Updated: 2024-08-02 14:53

Title

Beats, Elastic Agent, APM Server, and Fleet Server Improper Certificate Validation issue

Summary

Severity

5.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CWE

CWE-295 - Improper Certificate Validation

Assigner

elastic mitre root Scorecard

References

2 references

URL	Tags
https://discuss.elastic.co/t/beats-elastic-agent-…
https://www.elastic.co/community/security

Impacted products

4 products

Vendor	Product	Version
Elastic	Beats	Affected: 8.0.0, 8.9.2
Elastic	Elastic Agent	Affected: 8.0.0, 8.9.2
Elastic	APM Server	Affected: 8.0.0, 8.9.2
Elastic	Fleet Server	Affected: 8.0.0, 8.9.2

Date Public

2023-09-19 15:32

Show details on NVD website

JSON

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  "containers": {
    "adp": [
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        "providerMetadata": {
          "dateUpdated": "2024-08-02T14:53:30.714Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
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            "tags": [
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          },
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            "url": "https://www.elastic.co/community/security"
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    ],
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          "vendor": "Elastic",
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            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-4X46-8GG7-F9VX

CVE-2023-31421 (GCVE-0-2023-31421)

Tags

Sightings

Nomenclature

Related by attack behaviour