CVE-2020-12424

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

When constructing a permission prompt for WebRTC, a URI was supplied from the content process. This URI was untrusted, and could have been the URI of an origin that was previously granted permission; bypassing the prompt. This vulnerability affects Firefox < 78.

References

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html

https://bugzilla.mozilla.org/show_bug.cgi?id=1562600

https://security.gentoo.org/glsa/202007-10

https://www.mozilla.org/security/advisories/mfsa2020-24/

Details

Source: MITRE

Published: 2020-07-09

Updated: 2020-07-27

Type: CWE-276

Risk Information

CVSS v2

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Impact Score: 3.6

Exploitability Score: 2.8

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

Tenable Plugins

View all (21 total)

IDNameProductFamilySeverity
150683SUSE SLES11 Security Update : MozillaFirefox (SUSE-SU-2020:14421-1)NessusSuSE Local Security Checks
high
147399NewStart CGSL CORE 5.04 / MAIN 5.04 : firefox Multiple Vulnerabilities (NS-SA-2021-0018)NessusNewStart CGSL Local Security Checks
high
147247NewStart CGSL MAIN 6.02 : firefox Multiple Vulnerabilities (NS-SA-2021-0052)NessusNewStart CGSL Local Security Checks
high
145857CentOS 8 : firefox (CESA-2020:3557)NessusCentOS Local Security Checks
high
143085RHEL 7 : firefox (RHSA-2020:4080)NessusRed Hat Local Security Checks
high
141760Scientific Linux Security Update : firefox on SL7.x x86_64 (20201001)NessusScientific Linux Local Security Checks
high
141414Oracle Linux 7 : firefox (ELSA-2020-4080)NessusOracle Linux Local Security Checks
high
140042Oracle Linux 8 : firefox (ELSA-2020-3557)NessusOracle Linux Local Security Checks
high
139854RHEL 8 : firefox (RHSA-2020:3557)NessusRed Hat Local Security Checks
high
139851RHEL 8 : firefox (RHSA-2020:3559)NessusRed Hat Local Security Checks
high
139811RHEL 8 : firefox (RHSA-2020:3555)NessusRed Hat Local Security Checks
high
138933GLSA-202007-10 : Mozilla Firefox: Multiple vulnerabilitiesNessusGentoo Local Security Checks
high
138786openSUSE Security Update : MozillaFirefox (openSUSE-2020-1017)NessusSuSE Local Security Checks
high
138747openSUSE Security Update : MozillaFirefox (openSUSE-2020-983)NessusSuSE Local Security Checks
high
138589Mozilla Thunderbird < 78.0NessusWindows
high
138588Mozilla Thunderbird < 78.0NessusMacOS X Local Security Checks
high
138494SUSE SLES12 Security Update : MozillaFirefox (SUSE-SU-2020:1899-1)NessusSuSE Local Security Checks
high
138493SUSE SLED15 / SLES15 Security Update : MozillaFirefox (SUSE-SU-2020:1898-1)NessusSuSE Local Security Checks
high
138133Ubuntu 16.04 LTS / 18.04 LTS / 19.10 / 20.04 : Firefox vulnerabilities (USN-4408-1)NessusUbuntu Local Security Checks
high
138085Mozilla Firefox < 78.0NessusWindows
high
138084Mozilla Firefox < 78.0NessusMacOS X Local Security Checks
high