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Vulnerability DatabaseCVE-2021-40691
CVE-2021-40691:
PHP vulnerability analysis and mitigation
Overview
A session hijack vulnerability (CVE-2021-40691) was identified in the Shibboleth authentication plugin of Moodle. The vulnerability affects Moodle versions 3.9.x before 3.9.10, 3.10.x before 3.10.7, and 3.11.x before 3.11.3. This security issue was discovered and disclosed in September 2021 (NVD).
Technical details
The vulnerability has been assigned a CVSS v3.1 Base Score of 4.3 (MEDIUM) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N. This indicates that the vulnerability is network exploitable, requires low attack complexity, needs no privileges, but does require user interaction (NVD).
Impact
The vulnerability could allow attackers to perform session hijacking when the Shibboleth authentication plugin is enabled, potentially compromising user sessions and gaining unauthorized access to user accounts (Redhat Bugzilla).
Mitigation and workarounds
The vulnerability has been patched in Moodle versions 3.9.10, 3.10.7, and 3.11.3. Users are advised to upgrade to these or newer versions to mitigate the risk (NVD).
Additional resources
Source: This report was generated using AI
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