CVE-2023-50263

MEDIUM EPSS 50.3%
Published Dec 12, 20232y ago · Modified Jun 17, 20261w ago
5.3 CVSS 3.1
Medium
Find Similar
Published Dec 12, 2023 2y ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.3
Exploitability
3.9
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
50.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor Information Exposure
CWE-306 Missing Authentication for Critical Function Authentication

Affected Products 2

VendorProductVersionRange
networktocodenautobot*≥1.1.0  –  <1.6.7
networktocodenautobot*≥2.0.0  –  <2.0.6

References 6

  • github.com https://github.com/nautobot/nautobot/commit/458280c359a4833a20da294eaf4b8d55edc91cee
    Patch
  • github.com https://github.com/nautobot/nautobot/commit/7c4cf3137f45f1541f09f2f6a7f8850cd3a2eaee
    Patch
  • github.com https://github.com/nautobot/nautobot/pull/4959
    Patch
  • github.com https://github.com/nautobot/nautobot/pull/4964
    Patch
  • github.com https://github.com/nautobot/nautobot/security/advisories/GHSA-75mc-3pjc-727q
    PatchVendor Advisory
  • github.com https://github.com/victor-o-silva/db_file_storage/blob/master/db_file_storage/views.py
    Product

Remediation

  • github.com https://github.com/nautobot/nautobot/commit/458280c359a4833a20da294eaf4b8d55edc91cee
    Patch
  • github.com https://github.com/nautobot/nautobot/commit/7c4cf3137f45f1541f09f2f6a7f8850cd3a2eaee
    Patch
  • github.com https://github.com/nautobot/nautobot/pull/4959
    Patch
  • github.com https://github.com/nautobot/nautobot/pull/4964
    Patch
  • github.com https://github.com/nautobot/nautobot/security/advisories/GHSA-75mc-3pjc-727q
    PatchVendor Advisory