Vulnerability · Published Sep 28, 2021 · Assigned by F-SecureUS

CVE-2021-33600Denial of Service Vulnerability in Web Interface of F-Secure Internet Gatekeeper

Medium 5.4

In plain English

A medium-severity security flaw in F-Secure Internet Gatekeeper from F-Secure. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium
Exploit odds (30 days)0.6%top 50.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
F-Secure F-Secure Internet Gatekeeper 5 Series All Version

References