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FKIE_CVE-2023-43798

Vulnerability from fkie_nvd - Published: 2023-10-30 23:15 - Updated: 2026-06-17 06:26
Severity
5.6 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Summary
BigBlueButton is an open-source virtual classroom. BigBlueButton prior to versions 2.6.12 and 2.7.0-rc.1 is vulnerable to Server-Side Request Forgery (SSRF). This issue is a bypass of CVE-2023-33176. A patch in versions 2.6.12 and 2.7.0-rc.1 disabled follow redirect at `httpclient.execute` since the software no longer has to follow it when using `finalUrl`. There are no known workarounds. We recommend upgrading to a patched version of BigBlueButton.
References
security-advisories@github.comhttps://github.com/bigbluebutton/bigbluebutton/pull/18494Third Party Advisory
security-advisories@github.comhttps://github.com/bigbluebutton/bigbluebutton/pull/18580Third Party Advisory
security-advisories@github.comhttps://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-3q22-hph2-cff7Third Party Advisory
security-advisories@github.comhttps://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-h98v-2h8w-99c4Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/bigbluebutton/bigbluebutton/pull/18494Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/bigbluebutton/bigbluebutton/pull/18580Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-3q22-hph2-cff7Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-h98v-2h8w-99c4Third Party Advisory
Impacted products
Vendor Product Version
bigbluebutton bigbluebutton *
bigbluebutton bigbluebutton 2.7.0
bigbluebutton bigbluebutton 2.7.0
bigbluebutton bigbluebutton 2.7.0
bigbluebutton bigbluebutton 2.7.0
bigbluebutton bigbluebutton 2.7.0
bigbluebutton bigbluebutton 2.7.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "bigbluebutton",
          "vendor": "bigbluebutton",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.6.12"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.7.0-alpha.1, \u003c 2.7.0-rc.1"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "07AC33B9-3067-4848-B48D-ABDD7286DE51",
              "versionEndExcluding": "2.6.12",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.7.0:alpha1:*:*:*:*:*:*",
              "matchCriteriaId": "C05D5D11-75BE-41FA-A62F-61F35B16BA9A",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.7.0:alpha2:*:*:*:*:*:*",
              "matchCriteriaId": "C23D21AA-EF44-4F61-9775-57E3AF206CEE",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.7.0:alpha3:*:*:*:*:*:*",
              "matchCriteriaId": "1E95E50E-3C1E-438A-BAEC-AE0DF69B2937",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.7.0:beta1:*:*:*:*:*:*",
              "matchCriteriaId": "A7EC2B6A-1A13-40FE-85D6-30D596813394",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.7.0:beta2:*:*:*:*:*:*",
              "matchCriteriaId": "5A7D33D7-AE88-4ED4-82A4-BCFA7E828AD1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.7.0:beta3:*:*:*:*:*:*",
              "matchCriteriaId": "49CCF586-942D-4B21-BFD2-486EF3FCDF7E",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "BigBlueButton is an open-source virtual classroom. BigBlueButton prior to versions 2.6.12 and 2.7.0-rc.1 is vulnerable to Server-Side Request Forgery (SSRF). This issue is a bypass of CVE-2023-33176. A patch in versions 2.6.12 and 2.7.0-rc.1 disabled follow redirect at `httpclient.execute` since the software no longer has to follow it when using `finalUrl`. There are no known workarounds. We recommend upgrading to a patched version of BigBlueButton."
    },
    {
      "lang": "es",
      "value": "BigBlueButton es un aula virtual de c\u00f3digo abierto. BigBlueButton anterior a las versiones 2.6.12 y 2.7.0-rc.1 es vulnerable a Server-Side Request Forgery (SSRF). Este problema es una omisi\u00f3n de CVE-2023-33176. Un parche en las versiones 2.6.12 y 2.7.0-rc.1 deshabilit\u00f3 el redireccionamiento de seguimiento en `httpclient.execute` ya que el software ya no tiene que seguirlo cuando usa `finalUrl`. No se conocen workarounds. Recomendamos actualizar a una versi\u00f3n parcheada de BigBlueButton."
    }
  ],
  "id": "CVE-2023-43798",
  "lastModified": "2026-06-17T06:26:28.137",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.6,
          "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:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.5,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-43798",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-09-05T20:19:07.980053Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2023-10-30T23:15:08.397",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/bigbluebutton/bigbluebutton/pull/18494"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/bigbluebutton/bigbluebutton/pull/18580"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-3q22-hph2-cff7"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-h98v-2h8w-99c4"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/bigbluebutton/bigbluebutton/pull/18494"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/bigbluebutton/bigbluebutton/pull/18580"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-3q22-hph2-cff7"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-h98v-2h8w-99c4"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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