Universal Cross-site scripting in macOS - CVE-2021-30890

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU57744

Universal Cross-site scripting in macOS - CVE-2021-30890

Published: October 27, 2021


Vulnerability identifier: #VU57744
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2021-30890
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in WebKLit. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.


Affected software

macOS
Gentoo Linux
SUSE CaaS Platform
SUSE Manager Proxy
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Enterprise Storage
watchOS
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
SUSE OpenStack Cloud Crowbar
SUSE OpenStack Cloud
HPE Helion Openstack
Anolis OS
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise Software Development Kit
tvOS
Apple iOS
iPadOS
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Realtime Extension
SUSE Linux Enterprise Module for Basesystem
SUSE Linux Enterprise Module for Desktop Applications
Ubuntu
Fedora
WPE WebKit
WebKitGTK+
webkit2gtk (Debian package)
wpewebkit (Debian package)
libwebkit2gtk-4.0-37 (Ubuntu package)
libjavascriptcoregtk-4.0-18 (Ubuntu package)
webkit2gtk-4_0-injected-bundles
webkit2gtk-4_0-injected-bundles-debuginfo
webkit2gtk3-debugsource
libwebkit2gtk3-lang
webkit2gtk3-devel
typelib-1_0-WebKit2WebExtension-4_0
typelib-1_0-WebKit2-4_0
typelib-1_0-JavaScriptCore-4_0
libwebkit2gtk-4_0-37-debuginfo
libwebkit2gtk-4_0-37
libjavascriptcoregtk-4_0-18-debuginfo
libjavascriptcoregtk-4_0-18
webkit2gtk3
webkit2gtk3-jsc
webkit2gtk3-jsc-devel
webkit2gtk3 (Red Hat package)
webkitgtk4 (Red Hat package)
Apple Safari

How to mitigate CVE-2021-30890

Install updates from vendor's website.

macOS - update to 12.0.1 21A559
WPE WebKit - update to 2.34.3
WebKitGTK+ - update to 2.34.3
webkit2gtk (Debian package) - addressed in versions 2.34.3-1~deb10u1, 2.34.3-1~deb11u1
wpewebkit (Debian package) - update to 2.34.3-1~deb11u1
watchOS - update to 8.1 19R570
Apple Safari - update to 15.1
tvOS - update to 15.1 19J572
Apple iOS - update to 15.1 19B74
iPadOS - addressed in versions 15.1 19B74, 15.1 19B75
libwebkit2gtk-4.0-37 (Ubuntu package) - addressed in versions 2.34.3-0ubuntu0.20.04.1, 2.34.3-0ubuntu0.21.04.1, 2.34.3-0ubuntu0.21.10.1
libjavascriptcoregtk-4.0-18 (Ubuntu package) - addressed in versions 2.34.3-0ubuntu0.20.04.1, 2.34.3-0ubuntu0.21.04.1, 2.34.3-0ubuntu0.21.10.1
webkit2gtk-4_0-injected-bundles - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
webkit2gtk-4_0-injected-bundles-debuginfo - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
webkit2gtk3-debugsource - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
libwebkit2gtk3-lang - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
webkit2gtk3-devel - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
typelib-1_0-WebKit2WebExtension-4_0 - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
typelib-1_0-WebKit2-4_0 - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
typelib-1_0-JavaScriptCore-4_0 - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
libwebkit2gtk-4_0-37-debuginfo - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
libwebkit2gtk-4_0-37 - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
libjavascriptcoregtk-4_0-18-debuginfo - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
libjavascriptcoregtk-4_0-18 - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
webkit2gtk3 - addressed in versions 2.34.4-1.fc34, 2.34.4-2.fc35
webkit2gtk3 - update to 2.34.6-1
webkit2gtk3-devel - update to 2.34.6-1
webkit2gtk3-jsc - update to 2.34.6-1
webkit2gtk3-jsc-devel - update to 2.34.6-1
webkit2gtk3 (Red Hat package) - update to 2.34.6-1.el8
webkitgtk4 (Red Hat package) - update to 2.48.3-2.el7_9

External References

Related Security Bulletins