PT-2023-12286 · Instructure · Instructure Canvas Lms

Gaukas + 1 · Publicado 2023-01-26 · Atualizado 2024-01-31 · CVE-2021-36539

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Média

Vetor base

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

Name of the Vulnerable Software and Affected Versions Instructure Canvas LMS (affected versions not specified)

Description The issue concerns improper access control in Instructure Canvas LMS, where unprivileged users can access locked or unpublished files through the DocViewer based file preview URL, referred to as canvadoc session url. This allows unauthorized access to sensitive information.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

IDOR

Enumeração de Fraquezas

CWE-639

Identificadores relacionados

BIT-CANVASLMS-2021-36539

CVE-2021-36539

Produtos afetados

Instructure Canvas Lms

Referências · 7

• 🔥 https://github.com/instructure/canvas-lms/issues/1905 · Exploit
• 🔥 https://github.com/gaukas/instructure-canvas-file-oracle · Exploit
• https://t.me/cvenotify/43180 · Publicação no Telegram
• https://osv.dev/vulnerability/CVE-2021-36539 · Aviso do Fabricante
• https://t.me/cvenotify/68622 · Publicação no Telegram
• https://osv.dev/vulnerability/BIT-canvaslms-2021-36539 · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2021-36539 · Nota de Segurança