CVE-2018-3963 Details

CVE-2018-3963

Published: 2019-03-21
Last Modified: 2019-10-03
CVE Author: NIST National Vulnerability Database
CVE Assigner: cve@mitre.org
Summary

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.

Analysis
Common Vulnerability Score System v2.0
Severity High
Base Score 8.3/10
Exploit Score 6.5/10
Access Vector Adjacent_network
Access Complexity Low
Authentication None
Impact Score 10/10
Confidentiality Impact Complete
Availability Impact Complete
Integrity Impact Complete
Vector String AV:A/AC:L/Au:N/C:C/I:C/A:C
Common Vulnerability Score System v3.1
Severity Critical
Base Score 9/10
Exploit Score 2.3/10
Access Vector Adjacent_network
Access Complexity Low
Privileges Required Low
Impact Score 6/10
Confidentiality Impact High
Availability Impact High
Integrity Impact High
Scope Changed
User Interaction None
Vector String CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Products Reported
CPE Vulnerable Start Excluding
cpe:2.3:a:getcujo:smart_firewall:7003:*:*:*:*:*:*:* Yes - -
References

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

CVE ID
CVE-2018-3963
Published
2019-03-21
Modified
2019-10-03
CVSSv2.0
High
CVSSv3.1
Critical
PCI Compliance
Fail
US-CERT Alert
No
CWE
CWE-77

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