PT-2021-8017 · Mozilla+2 · Firefox+2
Taiga Shirakura
·
Published
2021-11-02
·
Updated
2023-09-22
·
CVE-2021-43533
CVSS v2.0
5.0
Medium
| Vector | AV:N/AC:L/Au:N/C:N/I:P/A:N |
Name of the Vulnerable Software and Affected Versions
Mozilla Firefox versions prior to 94
Description
The issue is related to incorrect restriction of visualized layers in the user interface, which can be exploited by a remote attacker to conduct spoofing attacks. When parsing internationalized domain names, high bits of the characters in the URLs were sometimes stripped, resulting in inconsistencies that could lead to user confusion or attacks such as phishing.
Recommendations
For versions prior to 94, update to version 94 or later to resolve the issue. As a temporary workaround, consider restricting access to internationalized domain names until the update is applied. Avoid using URLs with internationalized domain names in the affected browser versions until the issue is resolved.
Exploit
Fix
Clickjacking
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Firefox