certfr_avis - CERTFR-2023-AVI-0765

CERTFR-2023-AVI-0765

Vulnerability from certfr_avis - Published: - Updated:

Une vulnérabilité a été découverte dans les produits ElasticSearch. Elle permet à un attaquant de provoquer un contournement de la politique de sécurité.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

None

Impacted products

Vendor	Product	Description
Elastic	Elasticsearch	Elastic Agent versions 8.x.x antérieures à 8.10.1
Elastic	Elasticsearch	Fleet Server versions versions 8.x.x antérieures à 8.10.1
Elastic	Elasticsearch	Beats versions 8.x.x antérieures à 8.10.1

References

Title

Publication Time

Tags

Bulletin de sécurité ElasticSearch 343385 du 19 septembre 2023	None	vendor-advisory
Bulletin de sécurité ElasticSearch 343385 du 19 septembre 2023	-	other

Show details on source website

JSON

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{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Elastic Agent versions 8.x.x ant\u00e9rieures \u00e0 8.10.1",
      "product": {
        "name": "Elasticsearch",
        "vendor": {
          "name": "Elastic",
          "scada": false
        }
      }
    },
    {
      "description": "Fleet Server versions versions 8.x.x ant\u00e9rieures \u00e0 8.10.1",
      "product": {
        "name": "Elasticsearch",
        "vendor": {
          "name": "Elastic",
          "scada": false
        }
      }
    },
    {
      "description": "Beats versions 8.x.x ant\u00e9rieures \u00e0 8.10.1",
      "product": {
        "name": "Elasticsearch",
        "vendor": {
          "name": "Elastic",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": null,
  "content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
  "cves": [
    {
      "name": "CVE-2023-31421",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-31421"
    }
  ],
  "links": [
    {
      "title": "Bulletin de s\u00e9curit\u00e9 ElasticSearch\u00a0343385 du 19 septembre 2023",
      "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"
    }
  ],
  "reference": "CERTFR-2023-AVI-0765",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2023-09-20T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Contournement de la politique de s\u00e9curit\u00e9"
    }
  ],
  "summary": "Une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 d\u00e9couverte dans \u003cspan class=\"textit\"\u003eles\nproduits ElasticSearch\u003c/span\u003e. Elle permet \u00e0 un attaquant de provoquer\nun contournement de la politique de s\u00e9curit\u00e9.\n",
  "title": "Vuln\u00e9rabilit\u00e9 dans les produits ElasticSearch",
  "vendor_advisories": [
    {
      "published_at": null,
      "title": "Bulletin de s\u00e9curit\u00e9 ElasticSearch 343385 du 19 septembre 2023",
      "url": null
    }
  ]
}

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

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

Summary

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

CWE

CWE-295 - Improper Certificate Validation

Assigner

elastic

References

URL

Tags

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

Impacted 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

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T14:53:30.714Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "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"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.elastic.co/community/security"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Beats",
          "vendor": "Elastic",
          "versions": [
            {
              "status": "affected",
              "version": "8.0.0, 8.9.2"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Elastic Agent",
          "vendor": "Elastic",
          "versions": [
            {
              "status": "affected",
              "version": "8.0.0, 8.9.2"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "APM Server",
          "vendor": "Elastic",
          "versions": [
            {
              "status": "affected",
              "version": "8.0.0, 8.9.2"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Fleet Server",
          "vendor": "Elastic",
          "versions": [
            {
              "status": "affected",
              "version": "8.0.0, 8.9.2"
            }
          ]
        }
      ],
      "datePublic": "2023-09-19T15:32:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cspan style=\"background-color: var(--wht);\"\u003eIt 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.\u003c/span\u003e"
            }
          ],
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
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      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-295",
              "description": "CWE-295: Improper Certificate Validation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-10-26T03:10:52.684Z",
        "orgId": "271b6943-45a9-4f3a-ab4e-976f3fa05b5a",
        "shortName": "elastic"
      },
      "references": [
        {
          "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"
        },
        {
          "url": "https://www.elastic.co/community/security"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Beats, Elastic Agent, APM Server, and Fleet Server Improper Certificate Validation issue",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "271b6943-45a9-4f3a-ab4e-976f3fa05b5a",
    "assignerShortName": "elastic",
    "cveId": "CVE-2023-31421",
    "datePublished": "2023-10-26T03:10:52.684Z",
    "dateReserved": "2023-04-27T18:54:56.705Z",
    "dateUpdated": "2024-08-02T14:53:30.714Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

CERTFR-2023-AVI-0765

Solution

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

Tags

Sightings

Nomenclature