What is the CVSS score of CVE-2023-2585?

CVE-2023-2585 has a CVSS 3.1 base score of 8.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.7%.

Is there a patch available for CVE-2023-2585?

Yes, a patch is available for CVE-2023-2585. Update the affected software to the latest version immediately.

Openshift Container Platform CVE-2023-2585

HIGH

Improperly Implemented Security Check for Standard (CWE-358)

2023-12-21 secalert@redhat.com

Authentication Bypass Red Hat Openshift Container Platform Openshift Container Platform For Ibm Z Openshift Container Platform For Linuxone Openshift Container Platform For Power Single Sign On

8.1

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-358 ASVS 5.0 V12 - Secure Communication Improperly implemented security check
Impact	CVSS score of 8.1 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

Patch available 0.7% exploitation probability (EPSS)

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AnalysisAI

Keycloak's device authorization grant does not correctly validate the device code and client ID. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affected Packages

maven org.keycloak:keycloak-server-spi-private fix: 21.1.2

maven org.keycloak:keycloak-services fix: 21.1.2

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 2 packages in maven

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-358. Keycloak's device authorization grant does not correctly validate the device code and client ID. An attacker client could abuse the missing validation to spoof a client consent request and trick an authorization admin into granting consent to a malicious OAuth client or possible unauthorized access to an existing OAuth client. Affected products include: Redhat Single Sign-On, Redhat Openshift Container Platform, Redhat Openshift Container Platform For Ibm Z, Redhat Openshift Container Platform For Linuxone, Redhat Openshift Container Platform For Power.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.1 HIGH

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

DescriptionNVD

Keycloak's device authorization grant does not correctly validate the device code and client ID. An attacker client could abuse the missing validation to spoof a client consent request and trick an authorization admin into granting consent to a malicious OAuth client or possible unauthorized access to an existing OAuth client.

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

16 maven packages depend on org.keycloak:keycloak-services (10 direct, 6 indirect)

Ecosystem-wide dependent count for version 21.1.2.

Threat Intelligence Overview

EPSS Score

0.7%

Top 51% exploitable

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 0.7%

Patch available Yes

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +1

CVSS: +40

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)NVD

cpe:2.3:a:redhat:single_sign-on:7.6:*:*:*:*:*:*:*

cpe:2.3:a:redhat:openshift_container_platform:4.11:*:*:*:*:*:*:*

cpe:2.3:a:redhat:openshift_container_platform:4.12:*:*:*:*:*:*:*

cpe:2.3:a:redhat:openshift_container_platform_for_ibm_z:4.9:*:*:*:*:*:*:*

cpe:2.3:a:redhat:openshift_container_platform_for_ibm_z:4.10:*:*:*:*:*:*:*

cpe:2.3:a:redhat:openshift_container_platform_for_linuxone:4.9:*:*:*:*:*:*:*

cpe:2.3:a:redhat:openshift_container_platform_for_linuxone:4.10:*:*:*:*:*:*:*

cpe:2.3:a:redhat:openshift_container_platform_for_power:4.9:*:*:*:*:*:*:*

cpe:2.3:a:redhat:openshift_container_platform_for_power:4.10:*:*:*:*:*:*:*

cpe:2.3:a:redhat:single_sign-on:-:*:*:*:text-only:*:*:*

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References

Advisories & patches

ADVISORY https://access.redhat.com/errata/RHSA-2023:3883 ADVISORY https://access.redhat.com/errata/RHSA-2023:3884 ADVISORY https://access.redhat.com/errata/RHSA-2023:3885 ADVISORY https://access.redhat.com/errata/RHSA-2023:3888 ADVISORY https://access.redhat.com/errata/RHSA-2023:3892 ADVISORY https://access.redhat.com/security/cve/CVE-2023-2585 ADVISORY https://bugzilla.redhat.com/show_bug.cgi?id=2196335

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