Authentication Bypass by Spoofing Affecting org.keycloak:keycloak-server-spi-private package, versions [,21.1.2)


Severity

0.0
low
0
10

    Threat Intelligence

    EPSS
    0.09% (39th percentile)

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  • Snyk ID SNYK-JAVA-ORGKEYCLOAK-5750277
  • published 2 Jul 2023
  • disclosed 30 Jun 2023
  • credit Timo Müller

How to fix?

Upgrade org.keycloak:keycloak-server-spi-private to version 21.1.2 or higher.

Overview

org.keycloak:keycloak-server-spi-private is an open source identity and access management solution for modern applications and services.

Affected versions of this package are vulnerable to Authentication Bypass by Spoofing within the Keycloak Device Authorisation Grant due to improper verification of the device code holder. Exploiting this vulnerability is possible under certain pre-conditions and it allows an attacker to spoof parts of the device flow and use a device_code to retrieve an access token for other OAuth clients.

References

CVSS Scores

version 3.1
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Snyk

3.1 low
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    Low
  • Availability (A)
    None
Expand this section

NVD

8.1 high
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Red Hat

3.5 low