title: Denial of Service Vulnerability in Web Interface of F-Secure Internet Gatekeeper
description: A denial-of-service (DoS) vulnerability was discovered in the web user interface of F-Secure Internet Gatekeeper. The vulnerability occurs because of an attacker can trigger assertion via malformed HTTP packet to web interface. An unauthenticated attacker could exploit this vulnerability by sending a large username parameter. A successful exploitation could lead to a denial-of-service of the product.
problem types: Denial of Service Vulnerability in Web Interface of F-Secure Internet Gatekeeper
affected:
{
product: F-Secure Internet Gatekeeper
vendor: F-Secure
versions:
status: affected, version: 5 Series All Version
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 5.4
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: LOW
privilegesRequired: LOW
scope: CHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
version: 3.1
]
solutions: FIX: Hotfix 9 will be published to fix this vulnerability. Download and instructions available at: https://www.f-secure.com/en/business/downloads/internet-gatekeeper