CVE-2019-9803 — Origin Validation Error in Mozilla Firefox

CWE-346 — Origin Validation Error12 documents5 sources
Severity
7.4HIGHNVD
OSV9.8
EPSS
0.1%
top 68.68%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Mozilla FirefoxDebian Firefox
Timeline
PublishedApr 26
Latest updateMay 24

Description

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.

CVSS vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:NExploitability: 2.2 | Impact: 5.2

Affected Packages4 packages

▶debiandebian/firefox< firefox 66.0-1 (sid)
▶CVEListV5mozilla/firefoxunspecified — 66
▶NVDmozilla/firefox< 66.0
▶Ubuntumozilla/firefox< 66.0.2+build1-0ubuntu0.14.04.1+8

🔴Vulnerability Details

6
GHSA
GHSA-6h7p-w66v-f7vw: The Upgrade-Insecure-Requests (UIR) specification states that if UIR is enabled through Content Security Policy (CSP), navigation to a same-origin URL↗2022-05-24
▶
OSV
firefox regressions↗2019-04-16
▶
OSV
firefox regression↗2019-03-28
▶
OSV
firefox vulnerabilities↗2019-03-25
▶
OSV
firefox vulnerabilities↗2019-03-21
▶

📋Vendor Advisories

5
Ubuntu
Firefox regressions↗2019-04-16
▶
Ubuntu
Firefox regression↗2019-03-28
▶
Ubuntu
Firefox vulnerabilities↗2019-03-25
▶
Ubuntu
Firefox vulnerabilities↗2019-03-21
▶
Debian
CVE-2019-9803: firefox - The Upgrade-Insecure-Requests (UIR) specification states that if UIR is enabled ...↗2019
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