Insecure Inherited Permissions in Firefox ESR and Mozilla Firefox - CVE-2021-23998

Vulnerability identifier: #VU52337

CSH Severity: Medium

CVSS v4: 7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-23998

CWE-ID: CWE-277

Exploitation vector: Remote access

Exploit availability: No public exploit available

the vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to the way HTTP pages inherit a secure lock icon, when navigating from an HTTP page. A remote attacker can create a specially crafted webpage that through a series of complicated navigation will force the browser to display a secure lock icon on an unencrypted HTTP page.

Firefox ESR
Mozilla Firefox
Gentoo Linux
Arch Linux
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE CaaS Platform
SUSE Enterprise Storage
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Workstation
SUSE OpenStack Cloud Crowbar
Red Hat Enterprise Linux for ARM 64
HPE Helion Openstack
Anolis OS
Red Hat Enterprise Linux for x86_64
SUSE OpenStack Cloud
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux Server - TUS
SUSE Linux Enterprise Debuginfo
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise Software Development Kit
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Module for Desktop Applications
SUSE Linux Enterprise Workstation Extension
Ubuntu
openEuler
IBM Cloud Pak for Multicloud Management
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
firefox-esr (Debian package)
firefox (Red Hat package)
thunderbird (Red Hat package)
firefox
thunderbird
MozillaFirefox-translations-other
MozillaFirefox-translations-common
MozillaFirefox-devel
MozillaFirefox-debugsource
MozillaFirefox-debuginfo
MozillaFirefox
MozillaThunderbird-translations-other
MozillaThunderbird-translations-common
MozillaThunderbird-debugsource
MozillaThunderbird-debuginfo
MozillaThunderbird
firefox-debuginfo
firefox-debugsource
mozilla-crashreporter-firefox-debuginfo
firefox (Ubuntu package)
IBM Cloud Application Performance Management (APM)
Mozilla Thunderbird

Install updates from vendor's website.

Firefox ESR - update to 78.10.0
Mozilla Firefox - update to 88.0
IBM Cloud Pak for Multicloud Management - update to 2.3.21
Mozilla Thunderbird - update to 78.10.0
firefox-esr (Debian package) - update to 78.10.0esr-1~deb10u1
firefox (Red Hat package) - addressed in versions 78.10.0-1.el7_9, 78.10.0-1.el8_1, 78.10.0-1.el8_2, 78.10.0-1.el8_3
thunderbird (Red Hat package) - addressed in versions 78.10.0-1.el7_9, 78.10.0-1.el8_1, 78.10.0-1.el8_2, 78.10.0-1.el8_3
firefox - update to 78.10.0-1.0.1
thunderbird - update to 78.10.0-1.0.1
MozillaFirefox-translations-other - addressed in versions 78.10.0-3.139.1, 78.10.0-8.38.1, 78.10.0-78.126.1
MozillaFirefox-translations-common - addressed in versions 78.10.0-3.139.1, 78.10.0-8.38.1, 78.10.0-78.126.1, 78.10.0-112.57.2
MozillaFirefox-devel - addressed in versions 78.10.0-3.139.1, 78.10.0-8.38.1, 78.10.0-112.57.2
MozillaFirefox-debugsource - addressed in versions 78.10.0-3.139.1, 78.10.0-8.38.1, 78.10.0-112.57.2
MozillaFirefox-debuginfo - addressed in versions 78.10.0-3.139.1, 78.10.0-8.38.1, 78.10.0-78.126.1, 78.10.0-112.57.2
MozillaFirefox - addressed in versions 78.10.0-3.139.1, 78.10.0-8.38.1, 78.10.0-78.126.1, 78.10.0-112.57.2
MozillaThunderbird-translations-other - update to 78.10.0-8.23.1
MozillaThunderbird-translations-common - update to 78.10.0-8.23.1
MozillaThunderbird-debugsource - update to 78.10.0-8.23.1
MozillaThunderbird-debuginfo - update to 78.10.0-8.23.1
MozillaThunderbird - update to 78.10.0-8.23.1
firefox - update to 79.0-30
firefox-debuginfo - update to 79.0-30
firefox-debugsource - update to 79.0-30
mozilla-crashreporter-firefox-debuginfo - update to 79.0-30
firefox (Ubuntu package) - addressed in versions 88.0+build2-0ubuntu0.16.04.1, 88.0+build2-0ubuntu0.18.04.2, 88.0+build2-0ubuntu0.20.04.1, 88.0+build2-0ubuntu0.20.10.1, 88.0+build2-0ubuntu0.21.04.1

• https://www.mozilla.org/en-US/security/advisories/mfsa2021-16/
• https://www.mozilla.org/en-US/security/advisories/mfsa2021-15/

• Multiple vulnerabilities in Mozilla Firefox and Firefox ESR
• Multiple vulnerabilities in Mozilla Thunderbird
• Debian update for firefox-esr
• Red Hat Enterprise Linux 7 update for thunderbird
• Red Hat Enterprise Linux 8.1 update for thunderbird
• Red Hat Enterprise Linux 8.2 update for thunderbird
• Red Hat Enterprise Linux 8.0 update for thunderbird
• Red Hat Enterprise Linux 8 update for firefox
• Red Hat Enterprise Linux 8.2 update for firefox
• Red Hat Enterprise Linux 8.1 update for firefox
• Red Hat Enterprise Linux 7 update for firefox
• Arch Linux update for thunderbird
• Arch Linux update for firefox
• Gentoo update for Mozilla Firefox
• Gentoo update for Mozilla Thunderbird
• Multiple Vulnerabilities in IBM Cloud Pak for Multicloud Management
• SUSE update for MozillaFirefox
• SUSE update for MozillaFirefox
• Ubuntu update for firefox
• Multiple vulnerabilities in IBM Application Performance Management
• SUSE update for MozillaFirefox
• SUSE update for MozillaThunderbird
• SUSE update for MozillaFirefox
• openEuler 20.03 LTS SP4 update for firefox
• Anolis OS update for thunderbird
• Anolis OS update for firefox