National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-9803 Detail

Current Description

The Upgrade-Insecure-Requests (UIR) specification states that if UIR is enabled through Content Security Policy (CSP), navigation to a same-origin URL must be upgraded to HTTPS. Firefox will incorrectly navigate to an HTTP URL rather than perform the security upgrade requested by the CSP in some circumstances, allowing for potential man-in-the-middle attacks on the linked resources. This vulnerability affects Firefox < 66.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 7.4 HIGH
Vector:  CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1437009 Issue Tracking Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1515863 Issue Tracking Permissions Required Vendor Advisory
https://w3c.github.io/webappsec-upgrade-insecure-requests/ Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2019-07/ Vendor Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-346 Origin Validation Error NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
66.0


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-9803
NVD Published Date:
04/26/2019
NVD Last Modified:
04/30/2019