#VU27979 Input validation error in Moodle - CVE-2020-10738

Vulnerability identifier: #VU27979

Vulnerability risk: Medium

CVSSv4.0: 5.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-10738

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Moodle
Web applications / Other software

Vendor: moodle.org

Description

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to insufficient validation of user-supplied input when processing SCORM packages. A remote user can upload a specially crafted SCORM package that once added to a course will communicate with a web service and execute arbitrary code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Moodle: 3.5.0 beta - 3.5.11, 3.6.0 beta - 3.6.9, 3.7.0 beta - 3.7.5, 3.8.0 beta - 3.8.2

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External links
https://moodle.org/mod/forum/discuss.php?d=403513

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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.