CVE-2019-9803

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.4 HIGH
NETWORK
HIGH
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
mozillaCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 33%
VendorProductVersion
mozillafirefox
𝑥
< 66.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
firefox
sid
132.0.1-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
firefox
noble
Fixed 66.0+build3-0ubuntu1
released
mantic
Fixed 66.0+build3-0ubuntu1
released
lunar
Fixed 66.0+build3-0ubuntu1
released
kinetic
Fixed 66.0+build3-0ubuntu1
released
jammy
Fixed 66.0+build3-0ubuntu1
released
impish
Fixed 66.0+build3-0ubuntu1
released
hirsute
Fixed 66.0+build3-0ubuntu1
released
groovy
Fixed 66.0+build3-0ubuntu1
released
focal
Fixed 66.0+build3-0ubuntu1
released
eoan
Fixed 66.0+build3-0ubuntu1
released
disco
Fixed 66.0+build3-0ubuntu1
released
cosmic
Fixed 66.0+build3-0ubuntu0.18.10.1
released
bionic
Fixed 66.0+build3-0ubuntu0.18.04.1
released
xenial
Fixed 66.0+build3-0ubuntu0.16.04.2
released
trusty
Fixed 66.0.1+build1-0ubuntu0.14.04.1
released
mozjs38
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
impish
dne
hirsute
dne
groovy
dne
focal
dne
eoan
dne
disco
dne
cosmic
dne
bionic
ignored
xenial
dne
trusty
dne
mozjs52
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
impish
dne
hirsute
dne
groovy
ignored
focal
ignored
eoan
ignored
disco
ignored
cosmic
ignored
bionic
ignored
xenial
dne
trusty
dne
mozjs60
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
impish
dne
hirsute
dne
groovy
dne
focal
dne
eoan
ignored
disco
ignored
cosmic
ignored
bionic
dne
xenial
dne
trusty
dne
Common Weakness Enumeration
References
https://bugzilla.mozilla.org/show_bug.cgi?id=1437009
https://bugzilla.mozilla.org/show_bug.cgi?id=1515863
https://w3c.github.io/webappsec-upgrade-insecure-requests/
https://www.mozilla.org/security/advisories/mfsa2019-07/
https://bugzilla.mozilla.org/show_bug.cgi?id=1437009
https://bugzilla.mozilla.org/show_bug.cgi?id=1515863
https://w3c.github.io/webappsec-upgrade-insecure-requests/
https://www.mozilla.org/security/advisories/mfsa2019-07/