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CVSS Score
-Basic Information
Technical Details
Vulnerability Intelligence
Miggo AI
Miggo AIMiggo AIMiggo AIRoot Cause AnalysisThe vulnerability stems from incomplete validation of DNS A records in Moodle's cURL security check. The 'curl_security_check_host' function (in lib/curl.php) was responsible for validating hosts against the blocked list but only checked the first resolved IP address. Attackers could bypass restrictions by using hostnames that resolve to both allowed and blocked IPs. This aligns with the CVE description of bypassing via multiple A records and matches Moodle's security advisory referencing fixes in cURL host validation logic.
| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| moodle/moodle | composer | >= 3.2, < 3.2.7 | 3.2.7 |
| moodle/moodle | composer | >= 3.3, < 3.3.4 | 3.3.4 |
| moodle/moodle | composer | >= 3.4, < 3.4.1 | 3.4.1 |