{
  "GSD": {
    "alias": "CVE-2023-6680",
    "id": "GSD-2023-6680"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-6680"
      ],
      "details": "An improper certificate validation issue in Smartcard authentication in GitLab EE affecting all versions from 11.6 prior to 16.4.4, 16.5 prior to 16.5.4, and 16.6 prior to 16.6.2 allows an attacker to authenticate as another user given their public key if they use Smartcard authentication. Smartcard authentication is an experimental feature and has to be manually enabled by an administrator.",
      "id": "GSD-2023-6680",
      "modified": "2023-12-13T01:20:32.922394Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@gitlab.com",
        "ID": "CVE-2023-6680",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "GitLab",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "11.6",
                          "version_value": "16.4.4"
                        },
                        {
                          "version_affected": "\u003c",
                          "version_name": "16.5",
                          "version_value": "16.5.4"
                        },
                        {
                          "version_affected": "\u003c",
                          "version_name": "16.6",
                          "version_value": "16.6.2"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "GitLab"
            }
          ]
        }
      },
      "credits": [
        {
          "lang": "en",
          "value": "Thanks Lucas Serrano from PEReN (@LSerranoPEReN) for reporting this vulnerability"
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "An improper certificate validation issue in Smartcard authentication in GitLab EE affecting all versions from 11.6 prior to 16.4.4, 16.5 prior to 16.5.4, and 16.6 prior to 16.6.2 allows an attacker to authenticate as another user given their public key if they use Smartcard authentication. Smartcard authentication is an experimental feature and has to be manually enabled by an administrator."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-295",
                "lang": "eng",
                "value": "CWE-295: Improper Certificate Validation"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://gitlab.com/gitlab-org/gitlab/-/issues/421607",
            "refsource": "MISC",
            "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/421607"
          }
        ]
      },
      "solution": [
        {
          "lang": "en",
          "value": "Upgrade to versions 16.4.4, 16.5.4, 16.6.2 or above."
        }
      ]
    },
    "nvd.nist.gov": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "matchCriteriaId": "289EDE8D-E3DC-4000-A0BD-71E7389F631F",
                    "versionEndExcluding": "16.4.4",
                    "versionStartIncluding": "11.6",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "matchCriteriaId": "B9D88266-872E-4BD9-B3DF-D1C540E66AFD",
                    "versionEndExcluding": "16.5.4",
                    "versionStartIncluding": "16.5",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "matchCriteriaId": "D5C45787-C8C9-432E-8DAF-6F5264BBE0B3",
                    "versionEndExcluding": "16.6.2",
                    "versionStartIncluding": "16.6",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "descriptions": [
          {
            "lang": "en",
            "value": "An improper certificate validation issue in Smartcard authentication in GitLab EE affecting all versions from 11.6 prior to 16.4.4, 16.5 prior to 16.5.4, and 16.6 prior to 16.6.2 allows an attacker to authenticate as another user given their public key if they use Smartcard authentication. Smartcard authentication is an experimental feature and has to be manually enabled by an administrator."
          },
          {
            "lang": "es",
            "value": "Un problema de validaci\u00f3n de certificado incorrecto en la autenticaci\u00f3n de tarjeta inteligente en GitLab EE que afecta a todas las versiones desde 11.6 anterior a 16.4.4, 16.5 anterior a 16.5.4 y 16.6 anterior a 16.6.2 permite a un atacante autenticarse como otro usuario dada su clave p\u00fablica si utilizar la autenticaci\u00f3n con tarjeta inteligente. La autenticaci\u00f3n con tarjeta inteligente es una funci\u00f3n experimental y un administrador debe habilitarla manualmente."
          }
        ],
        "id": "CVE-2023-6680",
        "lastModified": "2023-12-19T20:51:03.237",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 8.1,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.2,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
            },
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 7.4,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 2.2,
              "impactScore": 5.2,
              "source": "cve@gitlab.com",
              "type": "Secondary"
            }
          ]
        },
        "published": "2023-12-15T16:15:46.737",
        "references": [
          {
            "source": "cve@gitlab.com",
            "tags": [
              "Broken Link"
            ],
            "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/421607"
          }
        ],
        "sourceIdentifier": "cve@gitlab.com",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-295"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-295"
              }
            ],
            "source": "cve@gitlab.com",
            "type": "Secondary"
          }
        ]
      }
    }
  }
}