CVE-2021-40693
First published: Fri Jan 21 2022(Updated: )
An authentication bypass risk was identified in the external database authentication functionality, due to a type juggling vulnerability.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| composer/moodle/moodle | >=3.11<3.11.3 | 3.11.3 |
| composer/moodle/moodle | >=3.10<3.10.7 | 3.10.7 |
| composer/moodle/moodle | >=3.9<3.9.10 | 3.9.10 |
| Moodle | <3.9.10 | |
| Moodle | >=3.10.0<3.10.7 | |
| Moodle | >=3.11.0<3.11.3 |
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Reference Links
- https://moodle.org/mod/forum/discuss.php?d=427105
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2043419
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2043418
- https://bugzilla.redhat.com/show_bug.cgi?id=2043417
- https://nvd.nist.gov/vuln/detail/CVE-2021-40693
- https://github.com/advisories/GHSA-2jxg-mv2m-j4r7 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2021-40693?
CVE-2021-40693 has a severity rating that poses a significant risk of authentication bypass.
How do I fix CVE-2021-40693?
To fix CVE-2021-40693, upgrade to Moodle versions 3.11.3, 3.10.7, or 3.9.10.
Which Moodle versions are affected by CVE-2021-40693?
CVE-2021-40693 affects Moodle versions before 3.9.10, between 3.10.0 and 3.10.7, and between 3.11.0 and 3.11.3.
What type of vulnerability is CVE-2021-40693?
CVE-2021-40693 is classified as a type juggling vulnerability resulting in an authentication bypass.
Can CVE-2021-40693 affect external database authentication?
Yes, CVE-2021-40693 specifically impacts the external database authentication functionality in Moodle.
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