gsd-2022-29236
Vulnerability from gsd
Modified
2023-12-13 01:19
Details
BigBlueButton is an open source web conferencing system. Starting in version 2.2 and up to versions 2.3.18 and 2.4-rc-6, an attacker can circumvent access restrictions for drawing on the whiteboard. The permission check is inadvertently skipped on the server, due to a previously introduced grace period. The attacker must be a meeting participant. The problem has been patched in versions 2.3.18 and 2.4-rc-6. There are currently no known workarounds.
Aliases
Aliases
CVE-2022-29236


To clipboard 

{
  "GSD": {
    "alias": "CVE-2022-29236",
    "description": "BigBlueButton is an open source web conferencing system. Starting in version 2.2 and up to versions 2.3.18 and 2.4-rc-6, an attacker can circumvent access restrictions for drawing on the whiteboard. The permission check is inadvertently skipped on the server, due to a previously introduced grace period. The attacker must be a meeting participant. The problem has been patched in versions 2.3.18 and 2.4-rc-6. There are currently no known workarounds.",
    "id": "GSD-2022-29236"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-29236"
      ],
      "details": "BigBlueButton is an open source web conferencing system. Starting in version 2.2 and up to versions 2.3.18 and 2.4-rc-6, an attacker can circumvent access restrictions for drawing on the whiteboard. The permission check is inadvertently skipped on the server, due to a previously introduced grace period. The attacker must be a meeting participant. The problem has been patched in versions 2.3.18 and 2.4-rc-6. There are currently no known workarounds.",
      "id": "GSD-2022-29236",
      "modified": "2023-12-13T01:19:41.640886Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2022-29236",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "bigbluebutton",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "\u003e= 2.2, \u003c 2.3.18"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "\u003e= 2.4-alpha-1, \u003c 2.4-rc-6"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "bigbluebutton"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4-rc-6, an attacker can circumvent access restrictions for drawing on the whiteboard. The permission check is inadvertently skipped on the server, due to a previously introduced grace period. The attacker must be a meeting participant. The problem has been patched in versions 2.3.18 and 2.4-rc-6. There are currently no known workarounds."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-285",
                "lang": "eng",
                "value": "CWE-285: Improper Authorization"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-p93g-r9gm-9v6r",
            "refsource": "MISC",
            "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-p93g-r9gm-9v6r"
          },
          {
            "name": "https://github.com/bigbluebutton/bigbluebutton/pull/13803",
            "refsource": "MISC",
            "url": "https://github.com/bigbluebutton/bigbluebutton/pull/13803"
          },
          {
            "name": "https://github.com/bigbluebutton/bigbluebutton/pull/14265",
            "refsource": "MISC",
            "url": "https://github.com/bigbluebutton/bigbluebutton/pull/14265"
          },
          {
            "name": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18",
            "refsource": "MISC",
            "url": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18"
          },
          {
            "name": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6",
            "refsource": "MISC",
            "url": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-p93g-r9gm-9v6r",
        "discovery": "UNKNOWN"
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "60814A0D-57C0-4407-B7DD-26A9D5C3DBB1",
                    "versionEndExcluding": "2.3.18",
                    "versionStartIncluding": "2.2.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:alpha1:*:*:*:*:*:*",
                    "matchCriteriaId": "C136F53E-2EC5-433F-B354-88DA37689142",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:alpha2:*:*:*:*:*:*",
                    "matchCriteriaId": "626A8774-BC38-4F11-A16B-918EC8740C82",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:beta1:*:*:*:*:*:*",
                    "matchCriteriaId": "33735D00-C2AC-4FDA-B47B-B15D099F26F3",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:beta2:*:*:*:*:*:*",
                    "matchCriteriaId": "98890F0C-2E60-4696-A6E5-F44FB2A1A5BD",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:beta3:*:*:*:*:*:*",
                    "matchCriteriaId": "0C916210-11BF-4F4C-AE3E-29D27135F3F9",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:beta4:*:*:*:*:*:*",
                    "matchCriteriaId": "ABB37B70-021E-48F6-B3D2-0790A4729A3C",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "407E0358-75E5-41D9-A624-3C15D2145DDE",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:rc3:*:*:*:*:*:*",
                    "matchCriteriaId": "EC135064-4919-4759-BC25-34C7868F6431",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:rc4:*:*:*:*:*:*",
                    "matchCriteriaId": "A0173198-BFAB-49E5-898E-173503C452C2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:rc5:*:*:*:*:*:*",
                    "matchCriteriaId": "CCB8C413-ECD9-47BF-963C-B3A0F25A1BD8",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "descriptions": [
          {
            "lang": "en",
            "value": "BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4-rc-6, an attacker can circumvent access restrictions for drawing on the whiteboard. The permission check is inadvertently skipped on the server, due to a previously introduced grace period. The attacker must be a meeting participant. The problem has been patched in versions 2.3.18 and 2.4-rc-6. There are currently no known workarounds."
          },
          {
            "lang": "es",
            "value": "BigBlueButton es un sistema de conferencias web de c\u00f3digo abierto. A partir de la versi\u00f3n 2.2 y versiones hasta 2.3.18 y 2.4-rc-6, un atacante puede omitir las restricciones de acceso para dibujar en la pizarra. La comprobaci\u00f3n de permisos es omitida inadvertidamente en el servidor, debido a un periodo de gracia introducido previamente. El atacante debe ser un participante de la reuni\u00f3n. El problema ha sido parcheado en versiones 2.3.18 y 2.4-rc-6. Actualmente no son conocidas mitigaciones"
          }
        ],
        "id": "CVE-2022-29236",
        "lastModified": "2024-03-08T19:15:07.403",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "SINGLE",
                "availabilityImpact": "NONE",
                "baseScore": 4.0,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
                "version": "2.0"
              },
              "exploitabilityScore": 8.0,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 4.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 1.4,
              "source": "nvd@nist.gov",
              "type": "Primary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 4.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 1.4,
              "source": "security-advisories@github.com",
              "type": "Secondary"
            }
          ]
        },
        "published": "2022-06-02T00:15:08.483",
        "references": [
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://github.com/bigbluebutton/bigbluebutton/pull/13803"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://github.com/bigbluebutton/bigbluebutton/pull/14265"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Release Notes",
              "Third Party Advisory"
            ],
            "url": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Release Notes",
              "Third Party Advisory"
            ],
            "url": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-p93g-r9gm-9v6r"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-285"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Primary"
          }
        ]
      }
    }
  }
}


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