CVE-2021-36396: SSRF
Published Mar 6, 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.
Affected Software
3 affected components
Moodle moodle<3.9.8
Moodle moodle>=3.10.0<3.10.5
Moodle moodle>=3.11.0<3.11.1
Remediation
Patch Available
Event History
Mar 6, 2023
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
DescriptionWeakness
Frequently Asked Questions
1
What is CVE-2021-36396?
CVE-2021-36396 is a vulnerability in Moodle that allows for blind SSRF due to insufficient redirect handling.
2
What is the severity of CVE-2021-36396?
The severity of CVE-2021-36396 is high with a severity value of 7.5.
3
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.
4
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.
5
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