Vulnerability CVE-2018-14630
Published: 2018-09-17

Description:
moodle before versions 3.5.2, 3.4.5, 3.3.8, 3.1.14 is vulnerable to an XML import of ddwtos could lead to intentional remote code execution. When importing legacy 'drag and drop into text' (ddwtos) type quiz questions, it was possible to inject and execute PHP code from within the imported questions, either intentionally or by importing questions from an untrusted source.

See advisories in our WLB2 database:
Topic
Author
Date
High
Moodle 3.x PHP Unserialize Remote Code Execution
EOF J. Moritz
19.09.2018

Type:

CWE-94

 (Improper Control of Generation of Code ('Code Injection'))

CVSS2 => (AV:N/AC:L/Au:S/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.5/10
6.4/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Moodle -> Moodle 

 References:
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-62880
http://www.securityfocus.com/bid/105354
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14630
https://moodle.org/mod/forum/discuss.php?d=376023
https://seclists.org/fulldisclosure/2018/Sep/28
https://www.sec-consult.com/en/blog/advisories/remote-code-execution-php-unserialize-moodle-open-source-learning-platform-cve-2018-14630/
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