CVE-2021-32706 Information

Description

Pi-hole’s Web interface provides a central location to manage a Pi-hole instance and review performance statistics. Prior to Pi-hole Web interface version 5.5.1 the validDomainWildcard preg_match filter allows a malicious character through that can be used to execute code list directories and overwrite sensitive files. The issue lies in the fact that one of the periods is not escaped allowing any character to be used in its place. A patch for this vulnerability was released in version 5.5.1.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://github.com/pi-hole/AdminLTE/releases/tag/v5.5.1 https://github.com/pi-hole/AdminLTE/security/advisories/GHSA-5cm9-6p3m-v259

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8