CVE-2024-29033: Oauthenticator GoogleOAuthenticator.hosted_domain Incorrectly Verifies Membership Of Vulnerability

HIGH
Advisory Identifier: GHSA-55m3-44xf-hg4h
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CVSS 7.5
CWE-285
Published
Advisory Summary

CVE-2024-29033 is a HIGH (CVSS 7.5) googleoauthenticator.hosted_domain incorrectly verifies membership of vulnerability (CWE-285: Improper Authorization) affecting Oauthenticator libraries in the PyPI ecosystem. The issue involves googleoauthenticator.hosted_domain incorrectly verifies membership of an google organization/workspace. Remediation is available by upgrading affected packages to version 16.3.0.

CVE-2024-29033 at a Glance

CVE Identifier CVE-2024-29033
GHSA Identifier GHSA-55m3-44xf-hg4h
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-285: Improper Authorization
Affected Product Oauthenticator
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.5

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

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
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-2024-29033

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

oauthenticator fixed: 16.3.0 
pip install oauthenticator>=16.3.0
Verify Direct and Transitive Dependencies

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

pip show oauthenticator

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2024-29033, inspect your installed packages using pip:

pip show oauthenticator

Analyze the terminal output to locate any version of Oauthenticator in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 16.3.0), your application is affected.

Note: The pip show oauthenticator command checks currently installed packages in your active Python environment.

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 Oauthenticator, 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

## Summary and impact [`GoogleOAuthenticator.hosted_domain`] is used to restrict what Google accounts can be authorized to access a JupyterHub. The restriction _is intended_ to ensure Google accounts are part of one or more Google organizations/workspaces verified to control specified domain(s). The vulnerability is that the actual restriction has been to Google accounts with emails ending with the domain. Such accounts could have been created by anyone which at one time was able to read an email associated with the domain. This was described by Dylan Ayrey (@dxa4481) in this [blog post] from 15th December 2023. ## Remediation Upgrade to `oauthenticator>=16.3.0` or restrict who can login another way, such as [`allowed_users`] or [`allowed_google_groups`]. [`GoogleOAuthenticator.hosted_domain`]: https://oauthenticator.readthedocs.io/en/latest/reference/api/gen/oauthenticator.google.html#oauthenticator.google.GoogleOAuthenticator.hosted_domain [`allowed_users`]: https://oauthenticator.readthedocs.io/en/latest/reference/api/gen/oauthenticator.google.html#oauthenticator.google.GoogleOAuthenticator.allowed_users [`allowed_google_groups`]: https://oauthenticator.readthedocs.io/en/latest/reference/api/gen/oauthenticator.google.html#oauthenticator.google.GoogleOAuthenticator.allowed_google_groups [blog post]: https://trufflesecurity.com/blog/google-oauth-is-broken-sort-of/

CVE-2024-29033 Affected Oauthenticator Versions

1 component(s)
Fixed Versions:
16.3.0
Product / Package Ecosystem Affected Versions Fixed Version
oauthenticator
pypi/oauthenticator
PyPI
< 16.3.0
16.3.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/jupyterhub/oauthenticator/security/advisories/GHSA-55m3-44xf-hg4h
NVD — CVE-2024-29033 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-29033
Security Fix Commit FIX COMMIT
https://github.com/jupyterhub/oauthenticator/commit/5246b09675501b09fb6ed64022099b7644812f60
Oauthenticator Source Repository REPOSITORY
https://github.com/jupyterhub/oauthenticator
Oauthenticator Security Information SECURITY
https://trufflesecurity.com/blog/google-oauth-is-broken-sort-of

Frequently Asked Questions

What is CVE-2024-29033?
CVE-2024-29033 is a security vulnerability in Oauthenticator involving GoogleOAuthenticator.hosted_domain incorrectly verifies membership of an Google organization/workspace under CWE-285: Improper Authorization.
Which Oauthenticator versions are affected?
Affected versions include releases prior to 16.3.0 across affected packages: oauthenticator.
What version fixes CVE-2024-29033?
Upgrading to 16.3.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is oauthenticator affected?
Yes, oauthenticator is affected in releases prior to 16.3.0. Upgrade your dependency to 16.3.0 or later.
What is the CVSS score of CVE-2024-29033?
CVE-2024-29033 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
What CWE is associated with CVE-2024-29033?
CVE-2024-29033 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 PyPI dependencies for CVE-2024-29033?
Run the dependency tree command: 'pip show oauthenticator'. 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-55m3-44xf-hg4h",
  "modified" : "2024-03-20T21:37:47Z",
  "published" : "2024-03-20T18:02:07Z",
  "aliases" : [ "CVE-2024-29033" ],
  "summary" : "GoogleOAuthenticator.hosted_domain incorrectly verifies membership of an Google organization/workspace",
  "details" : "## Summary and impact\n\n[`GoogleOAuthenticator.hosted_domain`] is used to restrict what Google accounts can be authorized to access a JupyterHub. The restriction _is intended_ to ensure Google accounts are part of one or more Google organizations/workspaces verified to control specified domain(s).\n\nThe vulnerability is that the actual restriction has been to Google accounts with emails ending with the domain. Such accounts could have been created by anyone which at one time was able to read an email associated with the domain. This was described by Dylan Ayrey (@dxa4481) in this [blog post] from 15th December 2023.\n\n## Remediation\n\nUpgrade to `oauthenticator>=16.3.0` or restrict who can login another way, such as [`allowed_users`] or [`allowed_google_groups`].\n\n[`GoogleOAuthenticator.hosted_domain`]: https://oauthenticator.readthedocs.io/en/latest/reference/api/gen/oauthenticator.google.html#oauthenticator.google.GoogleOAuthenticator.hosted_domain\n[`allowed_users`]: https://oauthenticator.readthedocs.io/en/latest/reference/api/gen/oauthenticator.google.html#oauthenticator.google.GoogleOAuthenticator.allowed_users\n[`allowed_google_groups`]: https://oauthenticator.readthedocs.io/en/latest/reference/api/gen/oauthenticator.google.html#oauthenticator.google.GoogleOAuthenticator.allowed_google_groups\n[blog post]: https://trufflesecurity.com/blog/google-oauth-is-broken-sort-of/",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "oauthenticator"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "16.3.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/jupyterhub/oauthenticator/security/advisories/GHSA-55m3-44xf-hg4h"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-29033"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jupyterhub/oauthenticator/commit/5246b09675501b09fb6ed64022099b7644812f60"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jupyterhub/oauthenticator"
  }, {
    "type" : "WEB",
    "url" : "https://trufflesecurity.com/blog/google-oauth-is-broken-sort-of"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-285" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-03-20T18:02:07Z",
    "nvd_published_at" : "2024-03-20T21:15:31Z"
  }
}