Blind SSRF Vulnerability in Moodle Affecting MyBackpack Functionality
CVE-2019-3809

6.5MEDIUM

Key Information:

Vendor

[unknown]

Status
Moodle
Vendor
CVE Published:
25 March 2019

What is CVE-2019-3809?

A security flaw exists in Moodle's mybackpack feature, present in versions 3.1 to 3.1.15 and earlier unsupported versions, that allows users to set arbitrary URLs for badges. This functionality should only be able to set URLs restricted to the Mozilla Open Badges backpack URL. As a result, this flaw enables blind Server-Side Request Forgery (SSRF) attacks, where attackers can exploit the vulnerability to make unauthorized requests within the server's network.

Affected Version(s)

moodle 3.1.16

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3809
x_refsource_CONFIRM
https://moodle.org/mod/forum/discuss.php?d=381229#p1536766
x_refsource_CONFIRM
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=...
x_refsource_CONFIRM

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.