National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-3809 Detail

Current Description

A flaw was found in Moodle versions 3.1 to 3.1.15 and earlier unsupported versions. The mybackpack functionality allowed setting the URL of badges, when it should be restricted to the Mozilla Open Badges backpack URL. This resulted in the possibility of blind SSRF via requests made by the page.

Source:  MITRE
Description Last Modified:  03/25/2019
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 10.0 CRITICAL
Vector: AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H (V3 legend)
Impact Score: 6.0
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-64222 Patch Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3809 Issue Tracking Patch Third Party Advisory
https://moodle.org/mod/forum/discuss.php?d=381229#p1536766 Patch Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Server-Side Request Forgery (SSRF) (CWE-918)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
3.1.0
Up to (including)
3.1.15


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-3809
NVD Published Date:
03/25/2019
NVD Last Modified:
03/26/2019