CVE-2021-36396: SSRF
First published: Mon Mar 06 2023(Updated: )
In Moodle, insufficient redirect handling made it possible to blindly bypass cURL blocked hosts/allowed ports restrictions, resulting in a blind SSRF risk.
Credit: patrick@puiterwijk.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Moodle Moodle | <3.9.8 | |
| Moodle Moodle | >=3.10.0<3.10.5 | |
| Moodle Moodle | >=3.11.0<3.11.1 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-36396?
CVE-2021-36396 is a vulnerability in Moodle that allows for blind SSRF due to insufficient redirect handling.
What is the severity of CVE-2021-36396?
The severity of CVE-2021-36396 is high with a severity value of 7.5.
What software versions are affected by CVE-2021-36396?
Moodle versions up to and including 3.9.8, versions between 3.10.0 and 3.10.5, and versions between 3.11.0 and 3.11.1 are affected by CVE-2021-36396.
How can I fix CVE-2021-36396?
To fix CVE-2021-36396, it is recommended to upgrade to a version of Moodle that is not affected by the vulnerability.
Where can I find more information about CVE-2021-36396?
More information about CVE-2021-36396 can be found at this link: https://moodle.org/mod/forum/discuss.php?d=424802
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