CVE-2018-3963

HIGH

CUJO Smart Firewall - OS Command Injection via DHCP Hostname

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References
Exploit, Third Party Advisory x_refsource_misc
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0627

Scores

CVSS v3 8.0
EPSS 0.0261
EPSS Percentile 83.5%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-77
Status published
Products (1)
getcujo/smart_firewall 7003
Published Mar 21, 2019
Tracked Since Feb 18, 2026