CVE-2022-4137

Keycloak: reflected xss attack

Description

A reflected cross-site scripting (XSS) vulnerability was found in the 'oob' OAuth endpoint due to incorrect null-byte handling. This issue allows a malicious link to insert an arbitrary URI into a Keycloak error page. This flaw requires a user or administrator to interact with a link in order to be vulnerable. This may compromise user details, allowing it to be changed or collected by an attacker.

Categories

8.1
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.39%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: Red Hat Red Hat Single Sign-On 7
Affected: Red Hat Red Hat Single Sign-On 7.6 for RHEL 7
Affected: Red Hat Red Hat Single Sign-On 7.6 for RHEL 8
Affected: Red Hat Red Hat Single Sign-On 7.6 for RHEL 9
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2023:1043 vendor advisory
https://access.redhat.com/errata/RHSA-2023:1044 vendor advisory
https://access.redhat.com/errata/RHSA-2023:1045 vendor advisory
https://access.redhat.com/errata/RHSA-2023:1049 vendor advisory
https://access.redhat.com/security/cve/CVE-2022-4137 vdb entry vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2148496 vendor advisory issue tracking

Frequently Asked Questions

What is the severity of CVE-2022-4137?
CVE-2022-4137 has been scored as a high severity vulnerability.
How to fix CVE-2022-4137?
To fix CVE-2022-4137, 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-2022-4137 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-4137 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-2022-4137?
CVE-2022-4137 affects Red Hat Red Hat Single Sign-On 7, Red Hat Red Hat Single Sign-On 7.6 for RHEL 7, Red Hat Red Hat Single Sign-On 7.6 for RHEL 8, Red Hat Red Hat Single Sign-On 7.6 for RHEL 9.
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