CVE-2023-50263
Nautobot File Download Authentication Bypass
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.
INFO
Published Date :
Dec. 12, 2023, 11:15 p.m.
Last Modified :
Nov. 21, 2024, 8:36 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-50263.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2023-50263 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-50263 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/nautobot/nautobot/commit/458280c359a4833a20da294eaf4b8d55edc91cee Added Reference https://github.com/nautobot/nautobot/commit/7c4cf3137f45f1541f09f2f6a7f8850cd3a2eaee Added Reference https://github.com/nautobot/nautobot/pull/4959 Added Reference https://github.com/nautobot/nautobot/pull/4964 Added Reference https://github.com/nautobot/nautobot/security/advisories/GHSA-75mc-3pjc-727q Added Reference https://github.com/victor-o-silva/db_file_storage/blob/master/db_file_storage/views.py -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Dec. 18, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Changed Reference Type https://github.com/nautobot/nautobot/commit/458280c359a4833a20da294eaf4b8d55edc91cee No Types Assigned https://github.com/nautobot/nautobot/commit/458280c359a4833a20da294eaf4b8d55edc91cee Patch Changed Reference Type https://github.com/nautobot/nautobot/commit/7c4cf3137f45f1541f09f2f6a7f8850cd3a2eaee No Types Assigned https://github.com/nautobot/nautobot/commit/7c4cf3137f45f1541f09f2f6a7f8850cd3a2eaee Patch Changed Reference Type https://github.com/nautobot/nautobot/pull/4959 No Types Assigned https://github.com/nautobot/nautobot/pull/4959 Patch Changed Reference Type https://github.com/nautobot/nautobot/pull/4964 No Types Assigned https://github.com/nautobot/nautobot/pull/4964 Patch Changed Reference Type https://github.com/nautobot/nautobot/security/advisories/GHSA-75mc-3pjc-727q No Types Assigned https://github.com/nautobot/nautobot/security/advisories/GHSA-75mc-3pjc-727q Patch, Vendor Advisory Changed Reference Type https://github.com/victor-o-silva/db_file_storage/blob/master/db_file_storage/views.py No Types Assigned https://github.com/victor-o-silva/db_file_storage/blob/master/db_file_storage/views.py Product Added CWE NIST CWE-306 Added CPE Configuration OR *cpe:2.3:a:networktocode:nautobot:*:*:*:*:*:*:*:* versions from (including) 1.1.0 up to (excluding) 1.6.7 *cpe:2.3:a:networktocode:nautobot:*:*:*:*:*:*:*:* versions from (including) 2.0.0 up to (excluding) 2.0.6 -
CVE Received by [email protected]
Dec. 12, 2023
Action Type Old Value New Value Added 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. Added Reference GitHub, Inc. https://github.com/nautobot/nautobot/security/advisories/GHSA-75mc-3pjc-727q [No types assigned] Added Reference GitHub, Inc. https://github.com/nautobot/nautobot/pull/4959 [No types assigned] Added Reference GitHub, Inc. https://github.com/nautobot/nautobot/pull/4964 [No types assigned] Added Reference GitHub, Inc. https://github.com/nautobot/nautobot/commit/458280c359a4833a20da294eaf4b8d55edc91cee [No types assigned] Added Reference GitHub, Inc. https://github.com/nautobot/nautobot/commit/7c4cf3137f45f1541f09f2f6a7f8850cd3a2eaee [No types assigned] Added Reference GitHub, Inc. https://github.com/victor-o-silva/db_file_storage/blob/master/db_file_storage/views.py [No types assigned] Added CWE GitHub, Inc. CWE-200 Added CVSS V3.1 GitHub, Inc. AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-50263 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-50263
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.45 }} 0.12%
score
0.62567
percentile