#VU39810 Improper access control in Moodle - CVE-2016-8643

Vulnerability identifier: #VU39810

Vulnerability risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2016-8643

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 authenticated user to manipulate data.

In Moodle 2.x and 3.x, non-admin site managers may accidentally edit admins via web services.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Moodle: 2.8 - 2.8.12, 2.9 - 2.9.8, 3.0 - 3.0.6, 3.1.0 - 3.1.2

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External links
https://www.securityfocus.com/bid/94457
https://moodle.org/mod/forum/discuss.php?d=343276

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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.