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CVE-2023-47090

Estado: ModificadaMedia (6.5)—

NATS nats-server before 2.9.23 and 2.10.x before 2.10.2 has an authentication bypass. An implicit $G user in an authorization block can sometimes be used for unauthenticated access, even when the intention of the configuration was for each user to have an account. The earliest affected version is 2.2.0.

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)

Linuxfoundation — Nats-server

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2023-47090",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-47090",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-09-09T20:29:52.062187Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2023-10-30T17:15:52.467",
  "references": [
    {
      "url": "http://www.openwall.com/lists/oss-security/2023/10/30/1",
      "tags": [
        "Mailing List"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/nats-io/nats-server/security/advisories/GHSA-fr2g-9hjm-wr23",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.openwall.com/lists/oss-security/2023/10/13/2",
      "tags": [
        "Mailing List",
        "Mitigation"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2023/10/30/1",
      "tags": [
        "Mailing List"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/nats-io/nats-server/security/advisories/GHSA-fr2g-9hjm-wr23",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.openwall.com/lists/oss-security/2023/10/13/2",
      "tags": [
        "Mailing List",
        "Mitigation"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "NATS nats-server before 2.9.23 and 2.10.x before 2.10.2 has an authentication bypass. An implicit $G user in an authorization block can sometimes be used for unauthenticated access, even when the intention of the configuration was for each user to have an account. The earliest affected version is 2.2.0."
    },
    {
      "lang": "es",
      "value": "NATS nats-server anterior a 2.9.23 y 2.10.x anterior a 2.10.2 tiene una omisión de autenticación. Un usuario $G implícito en un bloque de autorización a veces se puede utilizar para acceso no autenticado, incluso cuando la intención de la configuración era que cada usuario tuviera una cuenta. La primera versión afectada es la 2.2.0."
    }
  ],
  "lastModified": "2026-06-17T06:32:07.110",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "614FF4B7-8B2D-473A-8455-441CA8A74915",
              "versionEndExcluding": "2.9.23",
              "versionStartIncluding": "2.2.0"
            },
            {
              "criteria": "cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "852E9346-57E4-4B4A-8EC7-AE9F4532BE18",
              "versionEndExcluding": "2.10.2",
              "versionStartIncluding": "2.10.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}