CVE-2018-3963
8.0 · HIGHOverview
CVE-2018-3963 is a high-severity vulnerability affecting getcujo smart_firewall. It was published on March 21, 2019 and has a CVSS 3.1 base score of 8.0 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from getcujo. Update smart_firewall to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
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Frequently Asked Questions
What is CVE-2018-3963?
CVE-2018-3963 is a high-severity vulnerability affecting getcujo smart_firewall. It was published on March 21, 2019 and has a CVSS 3.1 base score of 8.0 (HIGH).
How severe is CVE-2018-3963?
This vulnerability has a CVSS 3.1 base score of 8.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2018-3963?
Check the references section for vendor advisories and patches from getcujo. Update smart_firewall to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2018-3963?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-3963 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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