GSD-2023-50333

Vulnerability from gsd - Updated: 2023-12-22 06:01
Details
Mattermost fails to update the permissions of the current session for a user who was just demoted to guest, allowing freshly demoted guests to change group names.
Aliases
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{
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-50333"
      ],
      "details": "Mattermost fails to update the permissions of the current session for a user who was just demoted to guest, allowing\u00a0freshly demoted guests to change group names.\n\n",
      "id": "GSD-2023-50333",
      "modified": "2023-12-22T06:01:17.474194Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "responsibledisclosure@mattermost.com",
        "ID": "CVE-2023-50333",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Mattermost",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "not down converted",
                          "x_cve_json_5_version_data": {
                            "defaultStatus": "unaffected",
                            "versions": [
                              {
                                "lessThanOrEqual": "9.2.2",
                                "status": "affected",
                                "version": "0",
                                "versionType": "semver"
                              },
                              {
                                "lessThanOrEqual": "8.1.6",
                                "status": "affected",
                                "version": "0",
                                "versionType": "semver"
                              },
                              {
                                "status": "unaffected",
                                "version": "8.1.7"
                              }
                            ]
                          }
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Mattermost"
            }
          ]
        }
      },
      "credits": [
        {
          "lang": "en",
          "value": "Leandro Chaves (brdoors3)"
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Mattermost fails to update the permissions of the current session for a user who was just demoted to guest, allowing\u00a0freshly demoted guests to change group names.\n\n"
          }
        ]
      },
      "generator": {
        "engine": "Vulnogram 0.1.0-dev"
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:L",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-284",
                "lang": "eng",
                "value": "CWE-284: Improper Access Control"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://mattermost.com/security-updates",
            "refsource": "MISC",
            "url": "https://mattermost.com/security-updates"
          }
        ]
      },
      "solution": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eUpdate Mattermost Server to versions 8.1.7, 9.3.0 or higher.\u003c/p\u003e"
            }
          ],
          "value": "Update Mattermost Server to versions 8.1.7, 9.3.0 or higher.\n\n"
        }
      ],
      "source": {
        "advisory": "MMSA-2023-00263",
        "defect": [
          "https://mattermost.atlassian.net/browse/MM-54773"
        ],
        "discovery": "EXTERNAL"
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "4FFBD373-195D-4481-B87D-5B329DBEC33D",
                    "versionEndExcluding": "8.1.7",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "descriptions": [
          {
            "lang": "en",
            "value": "Mattermost fails to update the permissions of the current session for a user who was just demoted to guest, allowing\u00a0freshly demoted guests to change group names.\n\n"
          },
          {
            "lang": "es",
            "value": "Mattermost no actualiza los permisos de la sesi\u00f3n actual para un usuario que acaba de ser degradado a invitado, lo que permite a los invitados reci\u00e9n degradados cambiar los nombres de los grupos."
          }
        ],
        "id": "CVE-2023-50333",
        "lastModified": "2024-01-08T19:04:13.117",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 4.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "LOW",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 1.4,
              "source": "nvd@nist.gov",
              "type": "Primary"
            },
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "LOW",
                "baseScore": 3.7,
                "baseSeverity": "LOW",
                "confidentialityImpact": "NONE",
                "integrityImpact": "LOW",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:L",
                "version": "3.1"
              },
              "exploitabilityScore": 1.2,
              "impactScore": 2.5,
              "source": "responsibledisclosure@mattermost.com",
              "type": "Secondary"
            }
          ]
        },
        "published": "2024-01-02T10:15:08.723",
        "references": [
          {
            "source": "responsibledisclosure@mattermost.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://mattermost.com/security-updates"
          }
        ],
        "sourceIdentifier": "responsibledisclosure@mattermost.com",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-Other"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-284"
              }
            ],
            "source": "responsibledisclosure@mattermost.com",
            "type": "Secondary"
          }
        ]
      }
    }
  }
}



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