CVE-2022-39342: Github.com/openfga/openfga OpenFGA Authorization Bypass Vulnerability

MODERATE
Advisory Identifier: GHSA-f4mm-2r69-mg5f
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CVSS 5.9
CWE-285 CWE-863
Published
Advisory Summary

CVE-2022-39342 is a MODERATE (CVSS 5.9) openfga authorization bypass vulnerability (CWE-285: Improper Authorization) affecting Github.com/openfga/openfga libraries in the Go ecosystem. The issue involves openfga authorization bypass. Remediation is available by upgrading affected packages to version 0.2.4.

CVE-2022-39342 at a Glance

CVE Identifier CVE-2022-39342
GHSA Identifier GHSA-f4mm-2r69-mg5f
Severity MODERATE
CVSS v3.1 Base Score 5.9
CWE Classification CWE-285: Improper Authorization
Affected Product Github.com/openfga/openfga
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 5.9

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2022-39342

To remediate this vulnerability, upgrade all affected Github.com/openfga/openfga dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/openfga/openfga fixed: 0.2.4 
Upgrade github.com/openfga/openfga to 0.2.4
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/openfga/openfga

How to Check if You Are Affected

To determine whether your application is affected by CVE-2022-39342, inspect your project dependencies for Github.com/openfga/openfga:

inspect dependencies for github.com/openfga/openfga

Analyze the terminal output to locate any version of Github.com/openfga/openfga in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.2.4), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-285: Improper Authorization, where the product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. In Github.com/openfga/openfga, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Overview During our internal security assessment, it was discovered that OpenFGA versions `v0.2.3` and prior are vulnerable to authorization bypass under certain conditions. ### Am I Affected? You are affected by this vulnerability if you are using `openfga/openfga` version `v0.2.3` or prior, and your model has a relation defined as a tupleset (the right hand side of a ‘from’ statement) that involves anything other than a direct relationship (e.g. ‘as self’) ### How to fix that? Upgrade to version `v0.2.4`. ### Backward Compatibility This update is not backward compatible. Any model involving rewritten tupleset relations will no longer be acceptable and has to be modified.

CVE-2022-39342 Affected Github.com/openfga/openfga Versions

1 component(s)
Fixed Versions:
0.2.4
Product / Package Ecosystem Affected Versions Fixed Version
github.com/openfga/openfga
golang/github.com/openfga/openfga
Go
< 0.2.4
0.2.4

References

GitHub Advisory / Wiki ADVISORY
https://github.com/openfga/openfga/security/advisories/GHSA-f4mm-2r69-mg5f
NVD — CVE-2022-39342 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-39342
Security Fix Commit FIX COMMIT
https://github.com/openfga/openfga/commit/c8db1ee3d2a366f18e585dd33236340e76e784c4
Github.com/openfga/openfga Source Repository REPOSITORY
https://github.com/openfga/openfga
Github.com/openfga/openfga Release RELEASE
https://github.com/openfga/openfga/releases/tag/v0.2.4

Frequently Asked Questions

What is CVE-2022-39342?
CVE-2022-39342 is a security vulnerability in Github.com/openfga/openfga involving OpenFGA Authorization Bypass under CWE-285: Improper Authorization.
Which Github.com/openfga/openfga versions are affected?
Affected versions include releases prior to 0.2.4 across affected packages: github.com/openfga/openfga.
What version fixes CVE-2022-39342?
Upgrading to 0.2.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/openfga/openfga affected?
Yes, github.com/openfga/openfga is affected in releases prior to 0.2.4. Upgrade your dependency to 0.2.4 or later.
What is the CVSS score of CVE-2022-39342?
CVE-2022-39342 has a CVSS v3.1 base score of 5.9 (MODERATE) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.
What CWE is associated with CVE-2022-39342?
CVE-2022-39342 is classified under CWE-285: Improper Authorization (The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.).
How can I check Go dependencies for CVE-2022-39342?
Run the dependency tree command: 'inspect dependencies for github.com/openfga/openfga'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-f4mm-2r69-mg5f",
  "modified" : "2023-06-27T21:55:58Z",
  "published" : "2022-10-25T20:21:33Z",
  "aliases" : [ "CVE-2022-39342" ],
  "summary" : "OpenFGA Authorization Bypass",
  "details" : "### Overview\nDuring our internal security assessment, it was discovered that OpenFGA versions `v0.2.3` and prior are vulnerable to authorization bypass under certain conditions.\n\n### Am I Affected?\nYou are affected by this vulnerability if you are using `openfga/openfga` version `v0.2.3` or prior, and your model has a relation defined as a tupleset (the right hand side of a ‘from’ statement) that involves anything other than a direct relationship (e.g. ‘as self’)\n\n### How to fix that?\nUpgrade to version `v0.2.4`.\n\n### Backward Compatibility\nThis update is not backward compatible.\nAny model involving rewritten tupleset relations will no longer be acceptable and has to be modified.\n  ",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/openfga/openfga"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.2.4"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 0.2.3"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openfga/openfga/security/advisories/GHSA-f4mm-2r69-mg5f"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-39342"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openfga/openfga/commit/c8db1ee3d2a366f18e585dd33236340e76e784c4"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openfga/openfga"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openfga/openfga/releases/tag/v0.2.4"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-285", "CWE-863" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-10-25T20:21:33Z",
    "nvd_published_at" : "2022-10-25T17:15:00Z"
  }
}