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OpenFGA Authorization Bypass

High severity GitHub Reviewed Published Apr 16, 2024 in openfga/openfga • Updated Apr 17, 2024

Package

gomod github.com/openfga/openfga (Go)

Affected versions

>= 1.5.0, < 1.5.3

Patched versions

1.5.3

Description

Overview

Some end users of OpenFGA v1.5.0 or later are vulnerable to authorization bypass when calling Check or ListObjects APIs.

Am I Affected?

You are very likely affected if your model involves exclusion (e.g. a but not b) or intersection (e.g. a and b) and you have any cyclical relationships. If you are using these, please update as soon as possible.

Fix

Update to v1.5.3

Backward Compatibility

This update is backward compatible.

References

@miparnisari miparnisari published to openfga/openfga Apr 16, 2024
Published by the National Vulnerability Database Apr 16, 2024
Published to the GitHub Advisory Database Apr 16, 2024
Reviewed Apr 16, 2024
Last updated Apr 17, 2024

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS score

0.043%
(11th percentile)

Weaknesses

CVE ID

CVE-2024-31452

GHSA ID

GHSA-8cph-m685-6v6r

Source code

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