Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2019-11747

6.5 · MEDIUM

The "Forget about this site" feature in the History pane is intended to remove all saved user data that indicates a user has visited a site.

Published Sep 27, 2019CWE-665EPSS 1.19%

Overview

CVE-2019-11747 is a medium-severity vulnerability. It was published on September 27, 2019 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The "Forget about this site" feature in the History pane is intended to remove all saved user data that indicates a user has visited a site. This includes removing any HTTP Strict Transport Security (HSTS) settings received from sites that use it. Due to a bug, sites on the pre-load list also have their HSTS setting removed. On the next visit to that site if the user specifies an http: URL rather than secure https: they will not be protected by the pre-loaded HSTS setting. After that visit the site's HSTS setting will be restored. This vulnerability affects Firefox < 69 and Firefox ESR < 68.1.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Reflists.opensuse.org/opensuse-security-announce/2019-10/msg00011.htmlReflists.opensuse.org/opensuse-security-announce/2019-10/msg00017.htmlRefbugzilla.mozilla.org/show_bug.cgi?id=1564481Refwww.mozilla.org/security/advisories/mfsa2019-25/Refwww.mozilla.org/security/advisories/mfsa2019-26/Reflists.opensuse.org/opensuse-security-announce/2019-10/msg00011.htmlReflists.opensuse.org/opensuse-security-announce/2019-10/msg00017.htmlRefbugzilla.mozilla.org/show_bug.cgi?id=1564481Refwww.mozilla.org/security/advisories/mfsa2019-25/Refwww.mozilla.org/security/advisories/mfsa2019-26/

How CyberStrike helps

Frequently asked questions

What is CVE-2019-11747?

CVE-2019-11747 is a medium-severity vulnerability. It was published on September 27, 2019 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2019-11747?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-11747?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2019-11747?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-11747 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related MEDIUM CVEs from 2019

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999