CVE Vulnerabilities

CVE-2022-23513

Improper Access Control

Published: Dec 23, 2022 | Modified: Sep 04, 2023
CVSS 3.x
5.3
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

Pi-Hole is a network-wide ad blocking via your own Linux hardware, AdminLTE is a Pi-hole Dashboard for stats and more. In case of an attack, the threat actor will obtain the ability to perform an unauthorized query for blocked domains on queryads endpoint. In the case of application, this vulnerability exists because of a lack of validation in code on a root server path: /admin/scripts/pi-hole/phpqueryads.php. Potential threat actor(s) are able to perform an unauthorized query search in blocked domain lists. This could lead to the disclosure for any victims personal blacklists.

Weakness

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Affected Software

Name Vendor Start Version End Version
Adminlte Pi-hole * 5.17 (including)

Extended Description

Access control involves the use of several protection mechanisms such as:

When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses:

Potential Mitigations

  • Compartmentalize the system to have “safe” areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
  • Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

References