Vulnerability identifier: #VU39159

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-3731

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.

Moodle 3.0 through 3.0.3, 2.9 through 2.9.5, and 2.8 through 2.8.11 allows remote attackers to obtain the names of hidden forums and forum discussions.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Moodle: 2.8 - 2.8.11, 2.9 - 2.9.5, 3.0 - 3.0.3

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External links
http://www.openwall.com/lists/oss-security/2016/05/17/4
http://www.securitytracker.com/id/1035902
http://bugzilla.redhat.com/show_bug.cgi?id=1335933

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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.