#VU31273 Information disclosure in Moodle - CVE-2018-10890

Vulnerability identifier: #VU31273

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2018-10890

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Moodle
Web applications / Other software

Vendor: moodle.org

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

A flaw was found in moodle before versions 3.5.1, 3.4.4, 3.3.7, 3.1.13. It was possible for the core_course_get_categories web service to return hidden categories, which should be omitted when fetching course categories.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Moodle: 3.5.0 beta - 3.5.0

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External links
https://www.securityfocus.com/bid/104738
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10890
https://moodle.org/mod/forum/discuss.php?d=373370

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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.