CVE-2024-8883: single sign-on Open Redirect — Fix

Description

A misconfiguration flaw was found in Keycloak. This issue can allow an attacker to redirect users to an arbitrary URL if a 'Valid Redirect URI' is set to http://localhost or http://127.0.0.1, enabling sensitive information such as authorization codes to be exposed to the attacker, potentially leading to session hijacking.

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CVSS v3.1 Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness Type (CWE)

CWE-601 CWE-601

Affected Products

Vendor	Product	Versions
redhat	build_of_keycloak	All
redhat	openshift_container_platform	All
redhat	openshift_container_platform	All
redhat	openshift_container_platform_for_ibm_z	All
redhat	openshift_container_platform_for_ibm_z	All
redhat	openshift_container_platform_for_linuxone	All
redhat	openshift_container_platform_for_linuxone	All
redhat	openshift_container_platform_for_power	All
redhat	openshift_container_platform_for_power	All
redhat	single_sign-on	All
redhat	single_sign-on	All

References

Advisories & Patches

Other References

https://access.redhat.com/errata/RHSA-2024:10385 https://access.redhat.com/errata/RHSA-2024:10386 https://access.redhat.com/errata/RHSA-2024:8823 https://access.redhat.com/errata/RHSA-2024:8824 https://access.redhat.com/errata/RHSA-2024:8826 https://github.com/keycloak/keycloak/blob/main/services/src/main/java/org/keycloak/protocol/oidc/utils/RedirectUtils.java

Frequently Asked Questions

What is CVE-2024-8883? +

A misconfiguration flaw was found in Keycloak. This issue can allow an attacker to redirect users to an arbitrary URL if a 'Valid Redirect URI' is set to http://localhost or http://127.0.0.1, enabling sensitive information such as authorization codes to be exposed to the attacker, potentially leading to session hijacking. It has a CVSS v3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2024-8883? +

CVE-2024-8883 has a CVSS v3.1 score of 6.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-8883? +

CVE-2024-8883 affects products from redhat, specifically: build_of_keycloak, openshift_container_platform, openshift_container_platform_for_ibm_z, openshift_container_platform_for_linuxone, openshift_container_platform_for_power, single_sign-on. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-8883? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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