Keycloak Device Auth: Missing Validation Enables Client Consent Spoof
CVE-2023-2585 Published on December 21, 2023

Keycloak: client access via device auth request spoof
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.

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Vulnerability Analysis

CVE-2023-2585 can be exploited with network access, requires user interaction and user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
HIGH
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
LOW
Integrity Impact:
LOW
Availability Impact:
NONE

Timeline

Reported to Red Hat.

Made public. 63 days later.

Weakness Type

Improperly Implemented Security Check for Standard

The software does not implement or incorrectly implements one or more security-relevant checks as specified by the design of a standardized algorithm, protocol, or technique.


Products Associated with CVE-2023-2585

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Affected Versions

Red Hat Single Sign-On 7: Red Hat Single Sign-On 7.6 for RHEL 7: Red Hat Single Sign-On 7.6 for RHEL 8: Red Hat Single Sign-On 7.6 for RHEL 9: Red Hat RHEL-8 based Middleware Containers:

Exploit Probability

EPSS
0.11%
Percentile
29.90%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.