PT-2021-5360 · Moodle+1 · Moodle+1

Ostapbender · Published 2021-11-10 · Updated 2024-03-06 · CVE-2021-43559

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Moodle versions 3.11 to 3.11.3 Moodle versions 3.10 to 3.10.7 Moodle versions 3.9 to 3.9.10 Moodle versions prior to 3.9

Description A flaw was found in the "delete related badge" functionality of Moodle, which did not include the necessary token check to prevent a CSRF risk. This flaw is related to cross-site request forgery and can be exploited by a remote attacker using a specially crafted web page.

Recommendations For Moodle versions 3.11 to 3.11.3, update to a version that includes the necessary token check for the "delete related badge" functionality. For Moodle versions 3.10 to 3.10.7, update to a version that includes the necessary token check for the "delete related badge" functionality. For Moodle versions 3.9 to 3.9.10, update to a version that includes the necessary token check for the "delete related badge" functionality. For Moodle versions prior to 3.9, update to a supported version that includes the necessary token check for the "delete related badge" functionality. As a temporary workaround, consider disabling the "delete related badge" functionality until a patch is available.

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

ALT-PU-2021-3258

ALT-PU-2021-3335

ALT-PU-2022-1641

BDU:2021-06190

BIT-MOODLE-2021-43559

CVE-2021-43559

GHSA-3JRJ-X6CJ-97CP

Affected Products

Alt Linux

Moodle

References · 17

• https://bdu.fstec.ru/vul/2021-06190 · Security Note
• https://osv.dev/vulnerability/GHSA-3jrj-x6cj-97cp · Vendor Advisory
• https://moodle.org/mod/forum/discuss.php?d=429099 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-43559 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-43559 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-43559 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-43559 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-moodle-2021-43559 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-43559 · Vendor Advisory
• https://github.com/moodle/moodle/commit/20d41ebae4eb28269298504c68db511a05ec4969 · Note
• https://redos.red-soft.ru/updatesec · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2021517 · Note
• https://securitylab.ru/vulnerability/526579.php · Note
• https://t.me/cibsecurity/32788 · Telegram Post
• https://t.me/cvenotify/23602 · Telegram Post