gsd-2023-39953
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
user_oidc provides the OIDC connect user backend for Nextcloud, an open-source cloud platform. Starting in version 1.0.0 and prior to version 1.3.3, missing verification of the issuer would have allowed an attacker to perform a man-in-the-middle attack returning corrupted or known token they also have access to. user_oidc 1.3.3 contains a patch. No known workarounds are available.
Aliases
Aliases
CVE-2023-39953


To clipboard 

{
  "GSD": {
    "alias": "CVE-2023-39953",
    "id": "GSD-2023-39953"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-39953"
      ],
      "details": "user_oidc provides the OIDC connect user backend for Nextcloud, an open-source cloud platform. Starting in version 1.0.0 and prior to version 1.3.3, missing verification of the issuer would have allowed an attacker to perform a man-in-the-middle attack returning corrupted or known token they also have access to. user_oidc 1.3.3 contains a patch. No known workarounds are available.",
      "id": "GSD-2023-39953",
      "modified": "2023-12-13T01:20:33.841530Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2023-39953",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "security-advisories",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "\u003e= 1.0.0, \u003c 1.3.3"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "nextcloud"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "user_oidc provides the OIDC connect user backend for Nextcloud, an open-source cloud platform. Starting in version 1.0.0 and prior to version 1.3.3, missing verification of the issuer would have allowed an attacker to perform a man-in-the-middle attack returning corrupted or known token they also have access to. user_oidc 1.3.3 contains a patch. No known workarounds are available."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-303",
                "lang": "eng",
                "value": "CWE-303: Incorrect Implementation of Authentication Algorithm"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xx3h-v363-q36j",
            "refsource": "MISC",
            "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xx3h-v363-q36j"
          },
          {
            "name": "https://github.com/nextcloud/user_oidc/pull/642",
            "refsource": "MISC",
            "url": "https://github.com/nextcloud/user_oidc/pull/642"
          },
          {
            "name": "https://hackerone.com/reports/2021684",
            "refsource": "MISC",
            "url": "https://hackerone.com/reports/2021684"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-xx3h-v363-q36j",
        "discovery": "UNKNOWN"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:nextcloud:user_oidc:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.3.3",
                "versionStartIncluding": "1.0.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2023-39953"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "user_oidc provides the OIDC connect user backend for Nextcloud, an open-source cloud platform. Starting in version 1.0.0 and prior to version 1.3.3, missing verification of the issuer would have allowed an attacker to perform a man-in-the-middle attack returning corrupted or known token they also have access to. user_oidc 1.3.3 contains a patch. No known workarounds are available."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-303"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xx3h-v363-q36j",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Vendor Advisory"
              ],
              "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xx3h-v363-q36j"
            },
            {
              "name": "https://github.com/nextcloud/user_oidc/pull/642",
              "refsource": "MISC",
              "tags": [
                "Patch"
              ],
              "url": "https://github.com/nextcloud/user_oidc/pull/642"
            },
            {
              "name": "https://hackerone.com/reports/2021684",
              "refsource": "MISC",
              "tags": [
                "Permissions Required"
              ],
              "url": "https://hackerone.com/reports/2021684"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 2.5
        }
      },
      "lastModifiedDate": "2023-08-16T19:10Z",
      "publishedDate": "2023-08-10T14:15Z"
    }
  }
}


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