CVE-2023-41355CWE-940

Chunghwa Telecom NOKIA G-040W-Q - Improper Input Validation

Critical · published November 3, 2023

CVSS v3.1
9.8
EPSS
1%
Percentile
49.1
In the wild
Unconfirmed
What it is

🚨 A crafty attacker can send a single malicious ICMP redirect message to hijack your network routing! 🔥 This vulnerability in the Chunghwa Telecom NOKIA G-040W-Q Firewall is no joke! Think of your network as a busy train station. This vulnerability allows an attacker to change the routes of your trains, sending them to unintended destinations — potentially leading to lost passenger data or service outages. An attacker could manipulate the network routing table, resulting in downtime or even sensitive data leaks! Imagine the chaos if all your data trains start heading off into the wrong stations — it's absolutely devastating!

Put simply

Think of your network as a busy train station. This vulnerability allows an attacker to change the routes of your trains, sending them to unintended destinations — potentially leading to lost passenger data or service outages. This input validation flaw allows unauthenticated remote attackers to exploit ICMP redirect messages, altering the existing routing table and potentially leading to denial of service or information exposure.

What to do

An attacker could manipulate the network routing table, resulting in downtime or even sensitive data leaks! Imagine the chaos if all your data trains start heading off into the wrong stations — it's absolutely devastating! Immediate action is crucial! Review your firewall settings, apply the latest patches from Chunghwa Telecom, and monitor your network traffic for any suspicious activities. Don't wait for trouble to strike! You've got this! By taking these steps, you can secure your network and earn your security hero badge! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00621 · 49.1th percentile
Weakness
CWE-940 · Improper Verification of Source of a Communication Channel
Published
2023-11-03T05:55Z
EPSS history
Timeline
  • 03 NOV 05:55Z
    Chunghwa Telecom NOKIA G-040W-Q - Improper Input Validation
    cvelistv5