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.
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
| Link | Tags |
|---|---|
| http://www.securityfocus.com/bid/105354 | third party advisory vdb entry |
| http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-62880 | patch vendor advisory |
| https://moodle.org/mod/forum/discuss.php?d=376023 | patch vendor advisory |
| https://seclists.org/fulldisclosure/2018/Sep/28 | mailing list third party advisory exploit |
| https://www.sec-consult.com/en/blog/advisories/remote-code-execution-php-unserialize-moodle-open-source-learning-platform-cve-2018-14630/ | third party advisory exploit |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14630 | patch third party advisory issue tracking |