CVE-2019-11747

EPSS 1.2%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 1.2%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

27 Sep 2019Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

Affected products

Mozilla · Firefox Mozilla · Firefox ESR

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References

http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html https://bugzilla.mozilla.org/show_bug.cgi?id=1564481 https://www.mozilla.org/security/advisories/mfsa2019-25/https://www.mozilla.org/security/advisories/mfsa2019-26/