Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2023-50263 First vendor Publication 2023-12-12
Vendor Cve Last vendor Modification 2023-12-18

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Overall CVSS Score 5.3
Base Score 5.3 Environmental Score 5.3
impact SubScore 1.4 Temporal Score 5.3
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact Low
Integrity Impact None Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-50263

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-306 Missing Authentication for Critical Function (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1

Sources (Detail)

https://github.com/nautobot/nautobot/commit/458280c359a4833a20da294eaf4b8d55e...
https://github.com/nautobot/nautobot/commit/7c4cf3137f45f1541f09f2f6a7f8850cd...
https://github.com/nautobot/nautobot/pull/4959
https://github.com/nautobot/nautobot/pull/4964
https://github.com/nautobot/nautobot/security/advisories/GHSA-75mc-3pjc-727q
https://github.com/victor-o-silva/db_file_storage/blob/master/db_file_storage...
Source Url

Alert History

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0
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Date Informations
2023-12-18 21:27:35
  • Multiple Updates
2023-12-13 09:27:23
  • Multiple Updates
2023-12-13 05:27:23
  • First insertion