Inconsistent interpretation of HTTP requests in CUJO Smart Firewall - CVE-2018-4030
Published: September 17, 2019
Vulnerability identifier: #VU21163
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2018-4030
CWE-ID: CWE-444
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: CUJO AI
Affected software:
CUJO Smart Firewall
CUJO Smart Firewall
Detailed vulnerability description
The vulnerability allows a remote attacker to conduct an HTTP request smuggling attack on the target system.
The vulnerability exists due to the way the "safe browsing" function parses HTTP requests. A remote attacker can send a specially crafted HTTP request to the application, which incorrectly extracts the "Host" header from captured HTTP, allowing visit any malicious websites and bypass the firewall.
How to mitigate CVE-2018-4030
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.