Vulnerability identifier: #VU18022

Vulnerability risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-3852

CWE-ID: CWE-285

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Moodle
Web applications / Other software

Vendor: moodle.org

Description

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to get_with_capability_join() and get_users_by_capability() methods did not take into consideration current activity status of the account (e.g. if the account is frozen or not) when checking user capabilities.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Moodle: 3.6.0 - 3.6.2

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External links
http://moodle.org/mod/forum/discuss.php?d=384015

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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