#VU39808 Weak Password Recovery Mechanism for Forgotten Password in Moodle - CVE-2016-7038

Vulnerability identifier: #VU39808

Vulnerability risk: Medium

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

CVE-ID: CVE-2016-7038

CWE-ID: CWE-640

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 read and manipulate data.

In Moodle 2.x and 3.x, web service tokens are not invalidated when the user password is changed or forced to be changed.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Moodle: 2.8 - 2.8.12, 2.9 - 2.9.7, 3.0 - 3.0.5, 3.1.0 - 3.1.1

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External links
https://www.securityfocus.com/bid/93174
https://moodle.org/mod/forum/discuss.php?d=339631

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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.