CVE-2018-4031 Information

Description

An exploitable vulnerability exists in the safe browsing function of the CUJO Smart Firewall version 7003. The flaw lies in the way the safe browsing function parses HTTP requests. The server hostname is extracted from captured HTTP/HTTPS requests and inserted as part of a Lua statement without prior sanitization which results in arbitrary Lua script execution in the kernel. An attacker could send an HTTP request to exploit this vulnerability.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Reference

https://talosintelligence.com/vulnerability_reports/TALOS-2018-0703

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

10.0