FKIE_CVE-2020-26214

Vulnerability from fkie_nvd - Published: 2020-11-06 18:15 - Updated: 2024-11-21 05:19
Severity ?
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
In Alerta before version 8.1.0, users may be able to bypass LDAP authentication if they provide an empty password when Alerta server is configure to use LDAP as the authorization provider. Only deployments where LDAP servers are configured to allow unauthenticated authentication mechanism for anonymous authorization are affected. A fix has been implemented in version 8.1.0 that returns HTTP 401 Unauthorized response for any authentication attempts where the password field is empty. As a workaround LDAP administrators can disallow unauthenticated bind requests by clients.
References
security-advisories@github.comhttps://github.com/alerta/alerta/commit/2bfa31779a4c9df2fa68fa4d0c5c909698c5ef65Patch, Third Party Advisory
security-advisories@github.comhttps://github.com/alerta/alerta/issues/1277Third Party Advisory
security-advisories@github.comhttps://github.com/alerta/alerta/pull/1345Third Party Advisory
security-advisories@github.comhttps://github.com/alerta/alerta/security/advisories/GHSA-5hmm-x8q8-w5jhThird Party Advisory
security-advisories@github.comhttps://pypi.org/project/alerta-server/8.1.0/Third Party Advisory
security-advisories@github.comhttps://tools.ietf.org/html/rfc4513#section-5.1.2Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/alerta/alerta/commit/2bfa31779a4c9df2fa68fa4d0c5c909698c5ef65Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/alerta/alerta/issues/1277Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/alerta/alerta/pull/1345Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/alerta/alerta/security/advisories/GHSA-5hmm-x8q8-w5jhThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://pypi.org/project/alerta-server/8.1.0/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://tools.ietf.org/html/rfc4513#section-5.1.2Third Party Advisory
Impacted products
Vendor Product Version
alerta_project alerta *
alerta_project alerta *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:alerta_project:alerta:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2C53AE9D-6FD9-4608-BD7E-9AF7088726E6",
              "versionEndExcluding": "7.5.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:alerta_project:alerta:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C22E7117-7A0F-4B6C-A0D7-717D92653221",
              "versionEndExcluding": "8.1.0",
              "versionStartIncluding": "8.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Alerta before version 8.1.0, users may be able to bypass LDAP authentication if they provide an empty password when Alerta server is configure to use LDAP as the authorization provider. Only deployments where LDAP servers are configured to allow unauthenticated authentication mechanism for anonymous authorization are affected. A fix has been implemented in version 8.1.0 that returns HTTP 401 Unauthorized response for any authentication attempts where the password field is empty. As a workaround LDAP administrators can disallow unauthenticated bind requests by clients."
    },
    {
      "lang": "es",
      "value": "En Alerta versiones anteriores a 8.1.0, los usuarios pueden ser capaces de omitir la autenticaci\u00f3n LDAP si proporcionan una contrase\u00f1a vac\u00eda cuando el servidor de Alerta est\u00e1 configurado para usar LDAP como proveedor de autorizaci\u00f3n.\u0026#xa0;Solo est\u00e1n afectadas las implementaciones en las que los servidores LDAP est\u00e1n configurados para permitir un mecanismo de autenticaci\u00f3n no autenticado para la autorizaci\u00f3n an\u00f3nima.\u0026#xa0;Una correcci\u00f3n ha sido implementada en la versi\u00f3n 8.1.0, que devuelve una respuesta HTTP 401 no autorizada para cualquier intento de autenticaci\u00f3n donde el campo de contrase\u00f1a est\u00e1 vac\u00edo.\u0026#xa0;Como soluci\u00f3n alternativa, los administradores de LDAP pueden rechazar las peticiones de vinculaci\u00f3n no autenticadas de los clientes"
    }
  ],
  "id": "CVE-2020-26214",
  "lastModified": "2024-11-21T05:19:32.727",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.2,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-11-06T18:15:12.437",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/alerta/alerta/commit/2bfa31779a4c9df2fa68fa4d0c5c909698c5ef65"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/alerta/alerta/issues/1277"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/alerta/alerta/pull/1345"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/alerta/alerta/security/advisories/GHSA-5hmm-x8q8-w5jh"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://pypi.org/project/alerta-server/8.1.0/"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://tools.ietf.org/html/rfc4513#section-5.1.2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/alerta/alerta/commit/2bfa31779a4c9df2fa68fa4d0c5c909698c5ef65"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/alerta/alerta/issues/1277"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/alerta/alerta/pull/1345"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/alerta/alerta/security/advisories/GHSA-5hmm-x8q8-w5jh"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://pypi.org/project/alerta-server/8.1.0/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://tools.ietf.org/html/rfc4513#section-5.1.2"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.