CVE-2019-6970: SSRF
Moodle 3.5.x before 3.5.4 allows SSRF.
Other sources
The editblog.php script allows a registered user to add external RSS feed resources. It was identified that this feature could be abused to be used as a SSRF attack vector by adding a malicious URL/TCP PORT in order to target internal network or an internet hosted server, bypassing firewall rules, IP filtering and more.
This kind of vulnerability is then called “blind” because of no response available on Moodle web site, enforcing attacker to exploit it using a “time based” approach.
— GitHub
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2019-6970?
CVE-2019-6970 is considered a high severity vulnerability due to its potential for SSRF attacks.
How do I fix CVE-2019-6970?
The vulnerability can be fixed by upgrading Moodle to version 3.5.4 or higher.
What type of attack does CVE-2019-6970 enable?
CVE-2019-6970 enables Server-Side Request Forgery (SSRF) attacks via the `edit_blog.php` script.
Which versions of Moodle are affected by CVE-2019-6970?
Moodle versions 3.5.0 to 3.5.3 are affected by CVE-2019-6970.
Who can exploit CVE-2019-6970?
Any registered user can potentially exploit CVE-2019-6970 by adding malicious URLs as RSS feed resources.