CVE-2021-20282 : When creating a user account, it was possible to verify the account without havi

When creating a user account, it was possible to verify the account without having access to the verification email link/secret in moodle before 3.10.2, 3.9.5, 3.8.8, 3.5.17.

Published 2021-03-15 22:15:13

Updated 2021-03-23 22:23:07

Source Red Hat, Inc.

View at NVD, CVE.org

Products affected by CVE-2021-20282

Moodle » Moodle
Versions from including (>=) 3.10.0 and before (<) 3.10.2
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
Matching versions
Moodle » Moodle
Versions from including (>=) 3.5.0 and before (<) 3.5.17
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
Matching versions
Moodle » Moodle
Versions from including (>=) 3.8.0 and before (<) 3.8.8
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
Matching versions
Moodle » Moodle
Versions from including (>=) 3.9.0 and before (<) 3.9.5
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
Matching versions
Fedoraproject » Fedora » Version: 32
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
Matching versions
Fedoraproject » Fedora » Version: 34
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2021-20282

EPSS FAQ

0.11%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 45 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-20282

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:P/A:N	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
5.3	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N	3.9	1.4	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: Low Availability: None

CWE ids for CVE-2021-20282

CWE-863 Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Assigned by: secalert@redhat.com (Primary)

References for CVE-2021-20282

https://bugzilla.redhat.com/show_bug.cgi?id=1939046

1939046 – (CVE-2021-20282) CVE-2021-20282 moodle: Bypass email verification secret when confirming account registration
Issue Tracking;Third Party Advisory
https://moodle.org/mod/forum/discuss.php?d=419653

Moodle.org: MSA-21-0009: Bypass email verification secret when confirming account registration
Patch;Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AFSNJ7XHVTC52RSRX2GBQFF3VEEAY2MS/

[SECURITY] Fedora 34 Update: moodle-3.10.2-1.fc34 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory

CVEs referencing this url
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UFH5DDMU5TZ3JT4Q52WMRAHACA5MHIMT/

[SECURITY] Fedora 32 Update: moodle-3.8.8-1.fc32 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory

CVEs referencing this url

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Vulnerability Details : CVE-2021-20282

Products affected by CVE-2021-20282

Exploit prediction scoring system (EPSS) score for CVE-2021-20282

CVSS scores for CVE-2021-20282

CWE ids for CVE-2021-20282

References for CVE-2021-20282