CVE-2018-12402 Detail

Current Description

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 visitor's 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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  6.5 MEDIUM
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/105721 Third Party Advisory  VDB Entry 
http://www.securitytracker.com/id/1041944 Third Party Advisory  VDB Entry 
https://bugzilla.mozilla.org/show_bug.cgi?id=1447087 Issue Tracking  Permissions Required  Vendor Advisory 
https://bugzilla.mozilla.org/show_bug.cgi?id=1469916 Issue Tracking  Permissions Required  Vendor Advisory 
https://usn.ubuntu.com/3801-1/ Third Party Advisory 
https://www.mozilla.org/security/advisories/mfsa2018-26/ Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-346 Origin Validation Error cwe source acceptance level NIST  

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-12402
NVD Published Date:
02/28/2019
NVD Last Modified:
10/02/2019
Source:
Mozilla Corporation