CVE-2018-3963 Information

Description

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.

CVSS Vector

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

Reference

https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0627

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.0