#VU54980 Blind server-side request forgery (SSRF) in Moodle - CVE-2021-36396
Published: July 19, 2021 / Updated: October 25, 2024
Vulnerability identifier: #VU54980
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2021-36396
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
Moodle
Moodle
Software vendor:
moodle.org
moodle.org
Description
The disclosed vulnerability allows a remote attacker to perform SSRF attacks.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can bypass cURL blocked hosts/allowed ports restrictions and trick the application to initiate requests to arbitrary systems.
Remediation
Install updates from vendor's website.