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NVD / CVE Program· CNA redhat

CVE-2023-2585: Keycloak: client access via device auth request spoof

Noroxi assessment

Priority: Monitor (action score 32/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.69% (FIRST EPSS); higher than 52.6% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: org.keycloak:keycloak-server-spi-private (Maven) 21.1.2; org.keycloak:keycloak-services (Maven) 21.1.2; rh-sso7-keycloak (Red Hat:red_hat_single_sign_on:7.6::el7) 0:18.0.8-1.redhat_00001.1.el7sso.
  • Severity is disputed: the assigning authority (CNA) scores it 3.5, NVD 8.1.

Low priority for now. Upgrade to org.keycloak:keycloak-server-spi-private (Maven) 21.1.2; org.keycloak:keycloak-services (Maven) 21.1.2; rh-sso7-keycloak (Red Hat:red_hat_single_sign_on:7.6::el7) 0:18.0.8-1.redhat_00001.1.el7sso or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

HighCVSS 8.1 · v3.1—No exploit Fix available
Published
Dec 21, 2023
Updated
Jun 17, 2026
EPSS
0.6% · 52th percentile

Report tools

JSON

Action score

32

Monitor

Low priority for now.

CVSS
32 / 40 · 8.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.6%

CNA vs NVD score

NVD
8.1
CNA · redhat
3.5
4.6 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2023-2585

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
redhatsingle sign-on
redhatenterprise linux
redhatopenshift container platform
redhatopenshift container platform for ibm z
redhatopenshift container platform for linuxone
redhatopenshift container platform for power

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • redhat openshift container platform4.11
  • redhat openshift container platform4.12
  • redhat openshift container platform for ibm z4.10
  • redhat openshift container platform for ibm z4.9
  • redhat openshift container platform for linuxone4.10
  • redhat openshift container platform for linuxone4.9
  • redhat openshift container platform for power4.10
  • redhat openshift container platform for power4.9
  • redhat single sign-onall versions
  • redhat single sign-on7.6

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • Red Hat Red Hat Single Sign-On 7

    • all versionsunknown

  • Red Hat Red Hat Single Sign-On 7.6 for RHEL 7

    • 0:18.0.8-1.redhat_00001.1.el7sso and laternot affected · rpm

  • Red Hat Red Hat Single Sign-On 7.6 for RHEL 8

    • 0:18.0.8-1.redhat_00001.1.el8sso and laternot affected · rpm

  • Red Hat Red Hat Single Sign-On 7.6 for RHEL 9

    • 0:18.0.8-1.redhat_00001.1.el9sso and laternot affected · rpm

  • Red Hat RHEL-8 based Middleware Containers

    • 7.6-24 and laternot affected · rpm

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Mavenorg.keycloak:keycloak-server-spi-privatebefore 21.1.221.1.2
Mavenorg.keycloak:keycloak-servicesbefore 21.1.221.1.2
Red Hat:red_hat_single_sign_on:7.6::el7rh-sso7-keycloakbefore 0:18.0.8-1.redhat_00001.1.el7sso0:18.0.8-1.redhat_00001.1.el7sso
Red Hat:red_hat_single_sign_on:7.6::el7rh-sso7-keycloak-serverbefore 0:18.0.8-1.redhat_00001.1.el7sso0:18.0.8-1.redhat_00001.1.el7sso
Red Hat:red_hat_single_sign_on:7.6::el8rh-sso7-keycloakbefore 0:18.0.8-1.redhat_00001.1.el8sso0:18.0.8-1.redhat_00001.1.el8sso
Red Hat:red_hat_single_sign_on:7.6::el8rh-sso7-keycloak-serverbefore 0:18.0.8-1.redhat_00001.1.el8sso0:18.0.8-1.redhat_00001.1.el8sso
Red Hat:red_hat_single_sign_on:7.6::el9rh-sso7-keycloakbefore 0:18.0.8-1.redhat_00001.1.el9sso0:18.0.8-1.redhat_00001.1.el9sso
Red Hat:red_hat_single_sign_on:7.6::el9rh-sso7-keycloak-serverbefore 0:18.0.8-1.redhat_00001.1.el9sso0:18.0.8-1.redhat_00001.1.el9sso

Same product

redhat: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-4039Rhsso-container-image: unsecured management interface exposed to adjecent network
    39Monitor
  • CVE-2019-14843A flaw was found in Wildfly Security Manager, running under JDK 11 or 8, that authorized requests for any requester.
    35Monitor
  • CVE-2020-10695An insecure modification flaw in the /etc/passwd file was found in the redhat-sso-7 container.
    31Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2021-3424Jun 1, 2021 · A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible.
    21Monitor
  • ← EarlierCVE-2022-2256Sep 1, 2022 · A Stored Cross-site scripting (XSS) vulnerability was found in keycloak as shipped in Red Hat Single Sign-On 7.
    15Monitor
  • ← EarlierCVE-2023-6134Dec 14, 2023 · Keycloak: reflected xss via wildcard in oidc redirect_uri
    21Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Maven:org.keycloak:keycloak-server-spi-private21.1.2Package registry (OSV)
Maven:org.keycloak:keycloak-services21.1.2Package registry (OSV)
red hat:rh-sso7-keycloak0:18.0.8-1.redhat_00001.1.el7sso · Red Hat:red_hat_single_sign_on:7.6::el7Package registry (OSV)
red hat:rh-sso7-keycloak-server0:18.0.8-1.redhat_00001.1.el7sso · Red Hat:red_hat_single_sign_on:7.6::el7Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
None

Weakness class (CWE)

CWE-358 · Improperly Implemented Security Check for Standard

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (6 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records