CVE-2018-3963 CRITICAL

CVE-2018-3963

Vendor N/A
Product CUJO
Published March 21, 2019
Last update August 5, 2024

CVSS base score

9.0/10
Attack vector Adjacent
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

An exploitable command injection vulnerability exists in the DHCP daemon configuration of the CUJO Smart Firewall. When adding a new static DHCP address, its corresponding hostname is inserted into the dhcpd.conf file without prior sanitization, allowing for arbitrary execution of system commands. To trigger this vulnerability, an attacker can send a DHCP request message and set up the corresponding static DHCP entry.

Key dates

02Disclosure timeline

March 21, 2019 CVE published
August 5, 2024 Record updated