fkie_cve-2024-38518
Vulnerability from fkie_nvd
Published
2024-06-28 21:15
Modified
2024-11-21 09:26
Severity ?
Summary
BigBlueButton is an open-source virtual classroom designed to help teachers teach and learners learn. An attacker with a valid join link to a meeting can trick BigBlueButton into generating a signed join link with additional parameters. One of those parameters may be "role=moderator", allowing an attacker to join a meeting as moderator using a join link that was originally created for viewer access. This vulnerability has been patched in version(s) 2.6.18, 2.7.8 and 3.0.0-alpha.7.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "BigBlueButton is an open-source virtual classroom designed to help teachers teach and learners learn. An attacker with a valid join link to a meeting can trick BigBlueButton into generating a signed join link with additional parameters. One of those parameters may be \"role=moderator\", allowing an attacker to join a meeting as moderator using a join link that was originally created for viewer access. This vulnerability has been patched in version(s) 2.6.18, 2.7.8 and 3.0.0-alpha.7."
},
{
"lang": "es",
"value": "BigBlueButton es un aula virtual de c\u00f3digo abierto dise\u00f1ada para ayudar a los profesores a ense\u00f1ar y a los alumnos a aprender. Un atacante con un enlace de entrada v\u00e1lido para una reuni\u00f3n puede enga\u00f1ar a BigBlueButton para que genere un enlace de entrada firmado con par\u00e1metros adicionales. Uno de esos par\u00e1metros puede ser \"rol=moderador\", lo que permite a un atacante unirse a una reuni\u00f3n como moderador utilizando un enlace para unirse que se cre\u00f3 originalmente para el acceso de los espectadores. Esta vulnerabilidad ha sido parcheada en las versiones 2.6.18, 2.7.8 y 3.0.0-alpha.7."
}
],
"id": "CVE-2024-38518",
"lastModified": "2024-11-21T09:26:09.023",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 4.6,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L",
"version": "3.1"
},
"exploitabilityScore": 2.1,
"impactScore": 2.5,
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
},
"published": "2024-06-28T21:15:03.180",
"references": [
{
"source": "security-advisories@github.com",
"url": "https://github.com/bigbluebutton/bigbluebutton/commit/a9d436accdcd26ea66bed9f391488ac128cd62d1"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/bigbluebutton/bigbluebutton/commit/ea6e9461dceae8fa593543d8c686f77bb8677e72"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/bigbluebutton/bigbluebutton/pull/20279"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-4m48-49h7-f3c4"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/bigbluebutton/bigbluebutton/commit/a9d436accdcd26ea66bed9f391488ac128cd62d1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/bigbluebutton/bigbluebutton/commit/ea6e9461dceae8fa593543d8c686f77bb8677e72"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/bigbluebutton/bigbluebutton/pull/20279"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-4m48-49h7-f3c4"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-284"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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