#VU38993 Input validation error in Moodle - CVE-2017-7490

Vulnerability identifier: #VU38993

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-2017-7490

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 non-authenticated attacker to gain access to sensitive information.

In Moodle 2.x and 3.x, searching of arbitrary blogs is possible because a capability check is missing.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Moodle: 2.7.0 - 2.7.18, 3.0.0 - 3.0.8, 3.1.0 - 3.1.4, 3.2.0 - 3.2.2

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External links
https://moodle.org/mod/forum/discuss.php?d=352354

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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.