PT-2020-13901 · Pi-Hole · Pi-Hole

Published 2020-07-30 · Updated 2021-07-21 · CVE-2020-14162

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Pi-Hole versions prior to 5.0

Description An issue was discovered where the local www-data user has sudo privileges to execute the pihole core script as root without a password. This could allow an attacker to obtain root access via shell metacharacters to the script's setdns command.

Recommendations For Pi-Hole versions prior to 5.0, consider restricting the sudo privileges of the www-data user to prevent execution of the pihole core script as root without a password, or update to version 5.0 or later to mitigate the risk of exploitation. As a temporary workaround, consider disabling the setdns command in the pihole core script until a patch is available.

Exploit

Fix

Improper Privilege Management

OS Command Injection

Weakness Enumeration

CWE-269

CWE-78

Related Identifiers

CVE-2020-14162

Affected Products

Pi-Hole

References · 4

• 🔥 https://0xpanic.github.io/2020/07/21/Pihole.html · Exploit
• https://osv.dev/vulnerability/CVE-2020-14162 · Vendor Advisory
• https://docs.pi-hole.net/core/pihole-command · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-14162 · Security Note