Vulnerability · Published Apr 15, 2022 · Assigned by GitHub_M
CVE-2022-24857Multi factor authentication bypass in django-mfa3
High 7.3
In plain English
A high-severity improper authentication in django-mfa3 from xi. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 67% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
django-mfa3 is a library that implements multi factor authentication for the django web framework. It achieves this by modifying the regular login view. Django however has a second login view for its admin area. This second login view was not modified, so the multi factor authentication can be bypassed. Users are affected if they have activated both django-mfa3 (< 0.5.0) and django.contrib.admin and have not taken any other measures to prevent users from accessing the admin login view. The issue has been fixed in django-mfa3 0.5.0. It is possible to work around the issue by overwriting the admin login route, e.g. by adding the following URL definition *before* the admin routes: url('admin/login/', lambda request: redirect(settings.LOGIN_URL)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | django-mfa3 | 0.5.0 | GHSA-3r7g-wrpr-j5g4 |
| PyPI | django-mfa3 | 0.5.0 | PYSEC-2022-192 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| xi | django-mfa3 | < 0.5.0 |
Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
References
- https://github.com/xi/django-mfa3/security/advisories/GHSA-3r7g-wrpr-j5g4 x_refsource_CONFIRM
- https://github.com/xi/django-mfa3/commit/32f656e22df120b84bdf010e014bb19bd97971de x_refsource_MISC
- https://github.com/xi/django-mfa3/blob/main/CHANGES.md#050-2022-04-15 x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20220609-0003/ x_refsource_CONFIRM