PT-2023-28589 · Unknown · Bigbluebutton

Abdulmohsen Alotaibi · Publicado 2023-10-30 · Atualizado 2023-11-07 · CVE-2023-42803

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Média

Vetor base

AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions BigBlueButton versions prior to 2.6.0-beta.2

Description BigBlueButton is an open-source virtual classroom. The issue arises from the insertDocument API call not validating the given file extension before saving the file and not removing it in case of validation failures, leading to unrestricted file upload.

Recommendations For versions prior to 2.6.0-beta.2, update to version 2.6.0-beta.2 or later to resolve the issue. As a temporary workaround, consider restricting access to the insertDocument API call until a patch is applied. Avoid using the insertDocument API call with untrusted file sources until the issue is resolved.

Exploit

Correção

Unrestricted File Upload

Enumeração de Fraquezas

CWE-434

Identificadores relacionados

CVE-2023-42803

GHSA-W98F-6X8W-XHJC

Produtos afetados

Bigbluebutton

Referências · 7

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/42xxx/CVE-2023-42803.json · Exploit
• https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-w98f-6x8w-xhjc · Nota
• https://github.com/bigbluebutton/bigbluebutton/pull/15990 · Nota
• https://osv.dev/vulnerability/CVE-2023-42803 · Aviso do Fabricante
• https://twitter.com/CVEnew/status/1719061477280411728 · Publicação no Twitter
• https://twitter.com/VulmonFeeds/status/1719090705136582788 · Publicação no Twitter
• https://nvd.nist.gov/vuln/detail/CVE-2023-42803 · Nota de Segurança