Cross-site request forgery in Moodle

1) Cross-site request forgery

EUVDB-ID: #VU16009

Risk: Low

CVSSv4.0: 2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2018-16854

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

Exploit availability: Yes

Description

The vulnerability allows a remote authenticated attacker to perform CSRF attack.

The weakness exists in the web-based management interface due to insufficient CSRF protections. A remote attacker can create a specially crafted HTML page or URL, trick the victim into visiting it, gain access to the system and perform arbitrary actions.

Mitigation

The vulnerability has been fixed in the versions 3.6, 3.5.3, 3.4.6, 3.3.9, 3.1.15.

Vulnerable software versions

Moodle: 3.1.0 - 3.5.2

CPE2.3

• cpe:2.3:a:moodle_org:moodle:3.1.14:*:*:*:*:*:*:*
• cpe:2.3:a:moodle_org:moodle:3.3.8:*:*:*:*:*:*:*
• cpe:2.3:a:moodle_org:moodle:3.4.5:*:*:*:*:*:*:*
• cpe:2.3:a:moodle_org:moodle:3.5.2:*:*:*:*:*:*:*

External links

https://moodle.org/mod/forum/discuss.php?d=378731#p1527068

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. However, proof of concept for this vulnerability is available.