FKIE_CVE-2021-3636

Vulnerability from fkie_nvd - Published: 2021-07-30 20:15 - Updated: 2024-11-21 06:22
Severity ?
4.6 (Medium) - CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Summary
It was found in OpenShift, before version 4.8, that the generated certificate for the in-cluster Service CA, incorrectly included additional certificates. The Service CA is automatically mounted into all pods, allowing them to safely connect to trusted in-cluster services that present certificates signed by the trusted Service CA. The incorrect inclusion of additional CAs in this certificate would allow an attacker that compromises any of the additional CAs to masquerade as a trusted in-cluster service.
References
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1978621Exploit, Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1978621Exploit, Issue Tracking, Patch, Third Party Advisory
Impacted products
Vendor Product Version
redhat openshift *
To clipboard 

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              "criteria": "cpe:2.3:a:redhat:openshift:*:*:*:*:*:*:*:*",
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  "descriptions": [
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      "value": "It was found in OpenShift, before version 4.8, that the generated certificate for the in-cluster Service CA, incorrectly included additional certificates. The Service CA is automatically mounted into all pods, allowing them to safely connect to trusted in-cluster services that present certificates signed by the trusted Service CA. The incorrect inclusion of additional CAs in this certificate would allow an attacker that compromises any of the additional CAs to masquerade as a trusted in-cluster service."
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    }
  ],
  "id": "CVE-2021-3636",
  "lastModified": "2024-11-21T06:22:02.467",
  "metrics": {
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        "baseSeverity": "MEDIUM",
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          "accessVector": "ADJACENT_NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
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          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:A/AC:L/Au:S/C:P/I:P/A:N",
          "version": "2.0"
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          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
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        "impactScore": 2.5,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2021-07-30T20:15:07.687",
  "references": [
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      "source": "secalert@redhat.com",
      "tags": [
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  "vulnStatus": "Modified",
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          "value": "CWE-295"
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      "type": "Secondary"
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      "description": [
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          "lang": "en",
          "value": "CWE-287"
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      ],
      "source": "nvd@nist.gov",
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    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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