CVE-2021-3424

Description

A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible. A malicious user can register himself with a name already registered and trick admin to grant him extra privileges.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.16%
Vendor Advisory redhat.com
Affected: n/a keycloak
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1933320 issue tracking vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-3424?
CVE-2021-3424 has been scored as a medium severity vulnerability.
How to fix CVE-2021-3424?
To fix CVE-2021-3424, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3424 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-3424 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3424?
CVE-2021-3424 affects n/a keycloak.
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