Improper Authentication in Moodle

1) Improper Authentication

EUVDB-ID: #VU41449

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2014-3552

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote #AU# to read and manipulate data.

The Shibboleth authentication plugin in auth/shibboleth/index.php in Moodle through 2.3.11, 2.4.x before 2.4.11, and 2.5.x before 2.5.7 does not check whether a session ID is empty, which allows remote authenticated users to hijack sessions via crafted plugin interaction.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Moodle: 2.3 - 2.5.6

CPE2.3

• cpe:2.3:a:moodle_org:moodle:2.3.10:*:*:*:*:*:*:*
• cpe:2.3:a:moodle_org:moodle:2.4.10:*:*:*:*:*:*:*
• cpe:2.3:a:moodle_org:moodle:2.5.6:*:*:*:*:*:*:*

External links

https://git.moodle.org/gw?p=moodle.git&a=search&h=refs%2Fheads%2FMOODLE_25_STABLE&st=commit&s=MDL-45485
https://openwall.com/lists/oss-security/2014/07/21/1
https://moodle.org/mod/forum/discuss.php?d=264261

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.