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CVE-2020-5415

Estado: ModificadaCrítica (10)—

Concourse, versions prior to 6.3.1 and 6.4.1, in installations which use the GitLab auth connector, is vulnerable to identity spoofing by way of configuring a GitLab account with the same full name as another user who is granted access to a Concourse team. GitLab groups do not have this vulnerability, so GitLab users may be moved into groups which are then configured in the Concourse team.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Pivotal Software — Concourse

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-5415",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Secondary",
        "source": "security@pivotal.io",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.0",
          "baseScore": 10,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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    ],
    "cvssMetricV31": [
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        "type": "Primary",
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        "cvssData": {
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          "version": "3.1",
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          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
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          "attackComplexity": "LOW",
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          "confidentialityImpact": "HIGH"
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        "impactScore": 5.8,
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  "affected": [
    {
      "source": "security@pivotal.io",
      "affectedData": [
        {
          "vendor": "VMware Tanzu",
          "product": "Concourse",
          "versions": [
            {
              "status": "affected",
              "version": "6.4",
              "lessThan": "6.4.1",
              "versionType": "custom"
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              "version": "6.3",
              "lessThan": "6.3.1",
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  ],
  "published": "2020-08-12T17:15:12.633",
  "references": [
    {
      "url": "https://github.com/concourse/concourse/security/advisories/GHSA-627p-rr78-99rj",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "security@pivotal.io"
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    {
      "url": "https://tanzu.vmware.com/security/cve-2020-5415",
      "tags": [
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      "source": "security@pivotal.io"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@pivotal.io",
      "description": [
        {
          "lang": "en",
          "value": "CWE-290"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-290"
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      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Concourse, versions prior to 6.3.1 and 6.4.1, in installations which use the GitLab auth connector, is vulnerable to identity spoofing by way of configuring a GitLab account with the same full name as another user who is granted access to a Concourse team. GitLab groups do not have this vulnerability, so GitLab users may be moved into groups which are then configured in the Concourse team."
    },
    {
      "lang": "es",
      "value": "Concourse, versiones anteriores a 6.3.1 y 6.4.1, en instalaciones que utilizan el conector de autenticación de GitLab, es vulnerable a la suplantación de identidad mediante la configuración de una cuenta de GitLab con el mismo nombre completo que otro usuario al que se le concede acceso a un equipo de Concourse. Los grupos de GitLab no tienen esta vulnerabilidad, por lo que los usuarios de GitLab pueden ser movidos a grupos que luego son configurados en el equipo de Concourse"
    }
  ],
  "lastModified": "2026-06-17T03:21:27.147",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "versionEndExcluding": "6.4.1",
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  "sourceIdentifier": "security@pivotal.io"
}