CVE-2023-6291

HIGH
Published Jan 26, 2024 Modified Nov 21, 2024 CWE-601

Description

A flaw was found in the redirect_uri validation logic in Keycloak. This issue may allow a bypass of otherwise explicitly allowed hosts. A successful attack may lead to an access token being stolen, making it possible for the attacker to impersonate other users.

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CVSS v3.1 Score

7.1
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Weakness Type (CWE)

CWE-601 CWE-601

Affected Products

Vendor Product
redhat keycloak
redhat single_sign-on
redhat openshift_container_platform
redhat openshift_container_platform
redhat openshift_container_platform_for_ibm_z
redhat openshift_container_platform_for_ibm_z
redhat openshift_container_platform_for_linuxone
redhat openshift_container_platform_for_linuxone
redhat openshift_container_platform_for_power
redhat openshift_container_platform_for_power
redhat enterprise_linux
redhat single_sign-on
redhat enterprise_linux
redhat enterprise_linux
redhat enterprise_linux
redhat migration_toolkit_for_applications
redhat migration_toolkit_for_applications

References

Advisories & Patches

https://access.redhat.com/errata/RHSA-2023:7854 https://access.redhat.com/errata/RHSA-2023:7855 https://access.redhat.com/errata/RHSA-2023:7856 https://access.redhat.com/errata/RHSA-2023:7857 https://access.redhat.com/errata/RHSA-2023:7858 https://access.redhat.com/errata/RHSA-2023:7860 https://access.redhat.com/errata/RHSA-2023:7861 https://access.redhat.com/security/cve/CVE-2023-6291 https://bugzilla.redhat.com/show_bug.cgi?id=2251407 https://access.redhat.com/errata/RHSA-2023:7854 https://access.redhat.com/errata/RHSA-2023:7855 https://access.redhat.com/errata/RHSA-2023:7856 https://access.redhat.com/errata/RHSA-2023:7857 https://access.redhat.com/errata/RHSA-2023:7858 https://access.redhat.com/errata/RHSA-2023:7860 https://access.redhat.com/errata/RHSA-2023:7861 https://access.redhat.com/security/cve/CVE-2023-6291 https://bugzilla.redhat.com/show_bug.cgi?id=2251407

Frequently Asked Questions

What is CVE-2023-6291? +
A flaw was found in the redirect_uri validation logic in Keycloak. This issue may allow a bypass of otherwise explicitly allowed hosts. A successful attack may lead to an access token being stolen, making it possible for the attacker to impersonate other users. It has a CVSS v3.1 base score of 7.1 (HIGH).
How severe is CVE-2023-6291? +
CVE-2023-6291 has a CVSS v3.1 score of 7.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2023-6291? +
CVE-2023-6291 affects products from redhat, specifically: enterprise_linux, keycloak, migration_toolkit_for_applications, 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-2023-6291? +
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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