Access Restriction Bypass Affecting org.keycloak:keycloak-services package, versions [,18.0.0)


Severity

0.0
medium
0
10

    Threat Intelligence

    EPSS
    0.24% (63rd percentile)

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  • Snyk ID SNYK-JAVA-ORGKEYCLOAK-2803837
  • published 27 Apr 2022
  • disclosed 26 Apr 2022
  • credit Johannes Knutsen

How to fix?

Upgrade org.keycloak:keycloak-services to version 18.0.0 or higher.

Overview

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

Affected versions of this package are vulnerable to Access Restriction Bypass due to missing authorization. This allows a client application, holding a valid access token, to exchange tokens for any target client, bypassing the client_id of the target and allowing a client to gain unauthorized access to additional services.

References

CVSS Scores

version 3.1
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Snyk

5.4 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    Low
  • Availability (A)
    None
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NVD

9.8 critical
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Red Hat

8 high