Security features bypass in Mozilla products - CVE-2024-7524

Vulnerability identifier: #VU95494

CSH Severity: Medium

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

CVE-ID: CVE-2024-7524

CWE-ID: CWE-254

Exploitation vector: Remote access

Exploit availability: No public exploit available

Affected software:
Mozilla Firefox
Firefox ESR
SeaMonkey
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
Fedora
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
IBM Cloud Pak for Multicloud Management
seamonkey
www-client/firefox
mozilla-firefox
firefox-esr (Debian package)
firefox-debugsource
firefox-debuginfo
firefox
dev-lang/spidermonkey
MozillaFirefox-debugsource
MozillaFirefox-debuginfo
MozillaFirefox-devel
MozillaFirefox-translations-common
MozillaFirefox
MozillaFirefox-branding-upstream
MozillaFirefox-translations-other
mail-client/thunderbird
mail-client/thunderbird-bin
MozillaFirefox-branding-SLE
firefox (Ubuntu package)

The vulnerability allows a remote attacker to bypass CSP policy.

Firefox adds web-compatibility shims in place of some tracking scripts blocked by Enhanced Tracking Protection. On a site protected by Content Security Policy in "strict-dynamic" mode, an attacker able to inject an HTML element could have used a DOM Clobbering attack on some of the shims and achieved XSS, bypassing the CSP strict-dynamic protection.

Install updates from vendor's website.

• https://www.mozilla.org/en-US/security/advisories/mfsa2024-33/
• https://www.mozilla.org/en-US/security/advisories/mfsa2024-35/
• https://www.mozilla.org/en-US/security/advisories/mfsa2024-34/