CVE Vulnerabilities

CVE-2018-12402

Origin Validation Error

Published: Feb 28, 2019 | Modified: Oct 03, 2019
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
Ubuntu

The internal WebBrowserPersist code does not use correct origin context for a resource being saved. This manifests when sub-resources are loaded as part of Save Page As… functionality. For example, a malicious page could recover a visitors Windows username and NTLM hash by including resources otherwise unreachable to the malicious page, if they can convince the visitor to save the complete web page. Similarly, SameSite cookies are sent on cross-origin requests when the Save Page As… menu item is selected to save a page, which can result in saving the wrong version of resources based on those cookies. This vulnerability affects Firefox < 63.

Weakness

The product does not properly verify that the source of data or communication is valid.

Affected Software

Name Vendor Start Version End Version
Firefox Mozilla * *

References