CVE-2022-39352: Github.com/openfga/openfga OpenFGA Authorization Bypass Vulnerability

MODERATE
Advisory Identifier: GHSA-3gfj-fxx4-f22w
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CVSS 4.8
CWE-863
Published
Advisory Summary

CVE-2022-39352 is a MODERATE (CVSS 4.8) openfga authorization bypass vulnerability (CWE-863: Incorrect 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 0.2.5.

CVE-2022-39352 at a Glance

CVE Identifier CVE-2022-39352
GHSA Identifier GHSA-3gfj-fxx4-f22w
Severity MODERATE
CVSS v3.1 Base Score 4.8
CWE Classification CWE-863: Incorrect Authorization
Affected Product Github.com/openfga/openfga
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 4.8

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:L/I:L/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 Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2022-39352

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: 0.2.5 
Upgrade github.com/openfga/openfga to 0.2.5
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-2022-39352, 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 0.2.5), 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-863: Incorrect Authorization, where the product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. 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 v0.2.4 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 v0.2.4 or prior, and have tuples where the `user` field is set to a `userset` e.g. `folder:test#owner`, and the tuple's relation is used on the right-hand side of a `from` statement. ### How to fix that? Upgrade to version 0.2.5. ### Backward Compatibility This update is not backward compatible. Any tuples where the `user` field is set to a `userset`, and the tuple's relation is used on the right-hand side of a `from` statement have to be rewritten.

CVE-2022-39352 Affected Github.com/openfga/openfga Versions

1 component(s)
Fixed Versions:
0.2.5
Product / Package Ecosystem Affected Versions Fixed Version
github.com/openfga/openfga
golang/github.com/openfga/openfga
Go
< 0.2.5
0.2.5

References

GitHub Advisory / Wiki ADVISORY
https://github.com/openfga/openfga/security/advisories/GHSA-3gfj-fxx4-f22w
NVD — CVE-2022-39352 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-39352
Security Fix Commit FIX COMMIT
https://github.com/openfga/openfga/commit/776e80505e8d184b2286acc8268d8d74f36a9984
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/v0.2.5

Frequently Asked Questions

What is CVE-2022-39352?
CVE-2022-39352 is a security vulnerability in Github.com/openfga/openfga involving OpenFGA Authorization Bypass under CWE-863: Incorrect Authorization.
Which Github.com/openfga/openfga versions are affected?
Affected versions include releases prior to 0.2.5 across affected packages: github.com/openfga/openfga.
What version fixes CVE-2022-39352?
Upgrading to 0.2.5 (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 0.2.5. Upgrade your dependency to 0.2.5 or later.
What is the CVSS score of CVE-2022-39352?
CVE-2022-39352 has a CVSS v3.1 base score of 4.8 (MODERATE) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.
What CWE is associated with CVE-2022-39352?
CVE-2022-39352 is classified under CWE-863: Incorrect Authorization (The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.).
How can I check Go dependencies for CVE-2022-39352?
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-3gfj-fxx4-f22w",
  "modified" : "2022-11-10T14:32:09Z",
  "published" : "2022-11-08T22:31:25Z",
  "aliases" : [ "CVE-2022-39352" ],
  "summary" : "OpenFGA Authorization Bypass",
  "details" : "### Overview\nDuring our internal security assessment, it was discovered that OpenFGA versions v0.2.4 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 v0.2.4 or prior, and have tuples where the `user` field is set to a `userset` e.g. `folder:test#owner`, and the tuple's relation is used on the right-hand side of a `from` statement.\n\n### How to fix that?\nUpgrade to version 0.2.5.\n\n### Backward Compatibility\nThis update is not backward compatible.\nAny tuples where the `user` field is set to a `userset`, and the tuple's relation is used on the right-hand side of a `from` statement have to be rewritten.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/openfga/openfga"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.2.5"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 0.2.4"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openfga/openfga/security/advisories/GHSA-3gfj-fxx4-f22w"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-39352"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openfga/openfga/commit/776e80505e8d184b2286acc8268d8d74f36a9984"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openfga/openfga"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openfga/openfga/releases/tag/v0.2.5"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-863" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-11-08T22:31:25Z",
    "nvd_published_at" : "2022-11-08T08:15:00Z"
  }
}