PT-2020-13170 · Pi-Hole · Pi-Hole

Published 2020-07-30 · Updated 2021-07-21 · CVE-2020-12620

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 version 4.4

Description The issue allows a user with write access to /etc/pihole/dns-servers.conf to escalate privileges through command injection by using shell metacharacters after an IP address.

Recommendations For Pi-hole version 4.4, consider restricting write access to the /etc/pihole/dns-servers.conf file to prevent command injection attacks. As a temporary workaround, monitor the file for any unauthorized changes and limit the use of shell metacharacters in the file until a patch is available.

Exploit

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2020-12620

Affected Products

Pi-Hole

References · 5

• 🔥 https://0xpanic.github.io/2020/07/21/Pihole.html · Exploit
• https://pi-hole.net · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-12620 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-12620 · Security Note
• https://github.com/pi-hole/pi-hole · Note