Vulnerability · Published Dec 12, 2023 · Assigned by GitHub_M
CVE-2023-50263Nautobot allows unauthenticated db-file-storage views
Low 3.7
In plain English
A low-severity information exposure in nautobot from nautobot. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 55% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Nautobot is a Network Source of Truth and Network Automation Platform built as a web application atop the Django Python framework with a PostgreSQL or MySQL database. In Nautobot 1.x and 2.0.x prior to 1.6.7 and 2.0.6, the URLs `/files/get/?name=...` and `/files/download/?name=...` are used to provide admin access to files that have been uploaded as part of a run request for a Job that has FileVar inputs. Under normal operation these files are ephemeral and are deleted once the Job in question runs. In the default implementation used in Nautobot, as provided by `django-db-file-storage`, these URLs do not by default require any user authentication to access; they should instead be restricted to only users who have permissions to view Nautobot's `FileProxy` model instances. Note that no URL mechanism is provided for listing or traversal of the available file `name` values, so in practice an unauthenticated user would have to guess names to discover arbitrary files for download, but if a user knows the file name/path value, they can access it without authenticating, so we are considering this a vulnerability. Fixes are included in Nautobot 1.6.7 and Nautobot 2.0.6. No known workarounds are available other than applying the patches included in those versions.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | nautobot | 1.6.7 | GHSA-75mc-3pjc-727q |
| PyPI | nautobot | 2.0.6 | GHSA-75mc-3pjc-727q |
| PyPI | nautobot | 1.6.7, 2.0.6 | PYSEC-2023-286 |
Affected products (as reported)
Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
References
- https://github.com/nautobot/nautobot/security/advisories/GHSA-75mc-3pjc-727q x_refsource_CONFIRM
- https://github.com/nautobot/nautobot/pull/4959 x_refsource_MISC
- https://github.com/nautobot/nautobot/pull/4964 x_refsource_MISC
- https://github.com/nautobot/nautobot/commit/458280c359a4833a20da294eaf4b8d55edc91cee x_refsource_MISC
- https://github.com/nautobot/nautobot/commit/7c4cf3137f45f1541f09f2f6a7f8850cd3a2eaee x_refsource_MISC
- https://github.com/victor-o-silva/db_file_storage/blob/master/db_file_storage/views.py x_refsource_MISC