Vulnerabilites related to nextcloud - openid_connect_user_backend
CVE-2022-39338 (GCVE-0-2022-39338)
Vulnerability from cvelistv5
Published
2022-11-25 00:00
Modified
2025-04-23 16:35
Severity ?
3.5 (Low) - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N
CWE
  • CWE-20 - Improper Input Validation
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
user_oidc is an OpenID Connect user backend for Nextcloud. Versions prior to 1.2.1 did not properly validate discovery urls which may lead to a stored cross site scripting attack vector. The impact is limited due to the restrictive CSP that is applied on this endpoint. Additionally this vulnerability has only been shown to be exploitable in the Safari web browser. This issue has been addressed in version 1.2.1. Users are advised to upgrade. Users unable to upgrade should urge their users to avoid using the Safari web browser.
References
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-5fpw-795h-rg57
https://github.com/nextcloud/user_oidc/pull/496
https://hackerone.com/reports/1687410
Impacted products
Vendor Product Version
nextcloud security-advisories Version: < 1.2.1
 Create a notification for this product.
Show details on NVD website

To clipboard 

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      "source": {
        "advisory": "GHSA-5fpw-795h-rg57",
        "discovery": "UNKNOWN"
      },
      "title": "Stored cross site scripting (XSS) vulnerability via Authorization Endpoint in user_oidc"
    }
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}

CVE-2022-39339 (GCVE-0-2022-39339)
Vulnerability from cvelistv5
Published
2022-11-25 00:00
Modified
2025-04-23 16:35
Severity ?
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CWE
  • CWE-319 - Cleartext Transmission of Sensitive Information
Summary
user_oidc is an OpenID Connect user backend for Nextcloud. In versions prior to 1.2.1 sensitive information such as the OIDC client credentials and tokens are sent in plain text of HTTP without TLS. Any malicious actor with access to monitor user traffic may have been able to compromise account security. This issue has been addressed in in user_oidc v1.2.1. Users are advised to upgrade. Users unable to upgrade may use https to access Nextcloud. Set an HTTPS discovery URL in the provider settings (in Nextcloud OIDC admin settings).
References
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2vff-cq8h-chhg
https://github.com/nextcloud/user_oidc/pull/495
https://hackerone.com/reports/1687005
Impacted products
Vendor Product Version
nextcloud security-advisories Version: < 1.2.1
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
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    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T12:00:44.166Z",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        }
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      "metrics": [
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    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Vulnerability from fkie_nvd
Published
2022-11-25 19:15
Modified
2024-11-21 07:18
Severity ?
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Summary
user_oidc is an OpenID Connect user backend for Nextcloud. In versions prior to 1.2.1 sensitive information such as the OIDC client credentials and tokens are sent in plain text of HTTP without TLS. Any malicious actor with access to monitor user traffic may have been able to compromise account security. This issue has been addressed in in user_oidc v1.2.1. Users are advised to upgrade. Users unable to upgrade may use https to access Nextcloud. Set an HTTPS discovery URL in the provider settings (in Nextcloud OIDC admin settings).
References
security-advisories@github.comhttps://github.com/nextcloud/security-advisories/security/advisories/GHSA-2vff-cq8h-chhgPatch, Third Party Advisory
security-advisories@github.comhttps://github.com/nextcloud/user_oidc/pull/495Patch, Third Party Advisory
security-advisories@github.comhttps://hackerone.com/reports/1687005Permissions Required, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2vff-cq8h-chhgPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/nextcloud/user_oidc/pull/495Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://hackerone.com/reports/1687005Permissions Required, Third Party Advisory
Impacted products
Vendor Product Version
nextcloud openid_connect_user_backend *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:nextcloud:openid_connect_user_backend:*:*:*:*:*:nextcloud:*:*",
              "matchCriteriaId": "A6DF3630-82F0-4917-B4CD-8B93EE5DF79B",
              "versionEndExcluding": "1.2.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "user_oidc is an OpenID Connect user backend for Nextcloud. In versions prior to 1.2.1 sensitive information such as the OIDC client credentials and tokens are sent in plain text of HTTP without TLS. Any malicious actor with access to monitor user traffic may have been able to compromise account security. This issue has been addressed in in user_oidc v1.2.1. Users are advised to upgrade. Users unable to upgrade may use https to access Nextcloud. Set an HTTPS discovery URL in the provider settings (in Nextcloud OIDC admin settings)."
    },
    {
      "lang": "es",
      "value": "user_oidc es un backend de usuario de OpenID Connect para Nextcloud. En versiones anteriores a la 1.2.1, la informaci\u00f3n sensible, como las credenciales y los tokens del cliente OIDC, se env\u00edan en texto plano de HTTP sin TLS. Cualquier actor malintencionado con acceso para monitorear el tr\u00e1fico de los usuarios puede haber podido comprometer la seguridad de la cuenta. Este problema se solucion\u00f3 en user_oidc v1.2.1. Se recomienda a los usuarios que actualicen. Los usuarios que no puedan actualizar pueden usar https para acceder a Nextcloud. Establezca una URL de descubrimiento HTTPS en la configuraci\u00f3n del proveedor (en la configuraci\u00f3n de administrador de Nextcloud OIDC)."
    }
  ],
  "id": "CVE-2022-39339",
  "lastModified": "2024-11-21T07:18:04.260",
  "metrics": {
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          "confidentialityImpact": "LOW",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
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          "confidentialityImpact": "LOW",
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          "privilegesRequired": "LOW",
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          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
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        "source": "nvd@nist.gov",
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    },
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}

Vulnerability from fkie_nvd
Published
2022-11-25 19:15
Modified
2024-11-21 07:18
Severity ?
3.5 (Low) - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Summary
user_oidc is an OpenID Connect user backend for Nextcloud. Versions prior to 1.2.1 did not properly validate discovery urls which may lead to a stored cross site scripting attack vector. The impact is limited due to the restrictive CSP that is applied on this endpoint. Additionally this vulnerability has only been shown to be exploitable in the Safari web browser. This issue has been addressed in version 1.2.1. Users are advised to upgrade. Users unable to upgrade should urge their users to avoid using the Safari web browser.
References
security-advisories@github.comhttps://github.com/nextcloud/security-advisories/security/advisories/GHSA-5fpw-795h-rg57Third Party Advisory
security-advisories@github.comhttps://github.com/nextcloud/user_oidc/pull/496Patch, Third Party Advisory
security-advisories@github.comhttps://hackerone.com/reports/1687410Permissions Required, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/nextcloud/security-advisories/security/advisories/GHSA-5fpw-795h-rg57Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/nextcloud/user_oidc/pull/496Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://hackerone.com/reports/1687410Permissions Required, Third Party Advisory
Impacted products
Vendor Product Version
nextcloud openid_connect_user_backend *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "versionEndExcluding": "1.2.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "user_oidc is an OpenID Connect user backend for Nextcloud. Versions prior to 1.2.1 did not properly validate discovery urls which may lead to a stored cross site scripting attack vector. The impact is limited due to the restrictive CSP that is applied on this endpoint. Additionally this vulnerability has only been shown to be exploitable in the Safari web browser. This issue has been addressed in version 1.2.1. Users are advised to upgrade. Users unable to upgrade should urge their users to avoid using the Safari web browser."
    },
    {
      "lang": "es",
      "value": "user_oidc es un backend de usuario de OpenID Connect para Nextcloud. Las versiones anteriores a la 1.2.1 no validaban correctamente las URL de descubrimiento, lo que pod\u00eda provocar un vector de ataque de Cross Site Scripting almacenado. El impacto es limitado debido al CSP restrictivo que se aplica en este endpoint. Adem\u00e1s, se ha demostrado que esta vulnerabilidad s\u00f3lo se puede explotar en el navegador web Safari. Este problema se ha solucionado en la versi\u00f3n 1.2.1. Se recomienda a los usuarios que actualicen. Los usuarios que no puedan actualizar deben instar a sus usuarios a evitar el uso del navegador web Safari."
    }
  ],
  "id": "CVE-2022-39338",
  "lastModified": "2024-11-21T07:18:04.137",
  "metrics": {
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
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          "baseScore": 3.5,
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          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N",
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        "source": "security-advisories@github.com",
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          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2022-11-25T19:15:11.450",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-5fpw-795h-rg57"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/nextcloud/user_oidc/pull/496"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Permissions Required",
        "Third Party Advisory"
      ],
      "url": "https://hackerone.com/reports/1687410"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-5fpw-795h-rg57"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/nextcloud/user_oidc/pull/496"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Permissions Required",
        "Third Party Advisory"
      ],
      "url": "https://hackerone.com/reports/1687410"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}