#VU89528 Improper access control in Moodle - CVE-2024-34009

Vulnerability identifier: #VU89528

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2024-34009

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Moodle
Web applications / Other software

Vendor: moodle.org

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to the ReCAPTCHA can be bypassed on the login page. A remote attacker can bypass the checks on the login page.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Moodle: 4.3.0 - 4.3.3

---

External links
https://moodle.org/mod/forum/discuss.php?d=458398
https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-81463

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.