Improper Authorization in Handler for Custom URL Scheme in Mozilla products - CVE-2024-8383

Vulnerability identifier: #VU96737

CSH Severity: Medium

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2024-8383

CWE-ID: CWE-939

Exploitation vector: Remote access

Exploit availability: No public exploit available

Affected software:
Mozilla Firefox
Firefox ESR
Firefox for Android
Debian Linux
Oracle Linux
Gentoo Linux
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Software Development Kit 12
Anolis OS
SUSE Enterprise Storage
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
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 Power, little endian - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Slackware Linux
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP3 LTSS
SUSE Linux Enterprise Server 15 SP4 LTSS
SUSE Linux Enterprise Desktop 15 SP4 LTSS
Desktop Applications Module
openSUSE Leap
Ubuntu
openEuler
Oracle Solaris
IBM Cloud Pak for Multicloud Management
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
www-client/firefox
dev-lang/spidermonkey
mozilla-thunderbird
mozilla-firefox
firefox-esr (Debian package)
firefox
firefox-debuginfo
firefox-debugsource
thunderbird (Debian package)
firefox (Red Hat package)
MozillaFirefox-devel
MozillaFirefox-debugsource
MozillaFirefox-debuginfo
MozillaFirefox
MozillaFirefox-translations-common
MozillaFirefox-branding-upstream
MozillaFirefox-translations-other
mail-client/thunderbird
mail-client/thunderbird-bin
firefox (Ubuntu package)
Mozilla Thunderbird

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a missing confirmation dialog when opening the Usenet-related schemes "news:" and "snews:". A remote attacker can trick the victim into downloading a malicious application that can be launched at will without any additional prompts.

Install updates from vendor's website.

• https://www.mozilla.org/en-US/security/advisories/mfsa2024-39/
• https://www.mozilla.org/en-US/security/advisories/mfsa2024-40/
• https://www.mozilla.org/en-US/security/advisories/mfsa2024-41/