Compass IT Compliance Blog

Urgent Cisco Vulnerability Identified - What You Need To Know!

[fa icon="clock-o"] Jan 31, 2018 12:21:18 PM [fa icon="user"] Josh McDonald [fa icon="folder-open'] Information Security, Cybersecurity


We know security is important to you and it has come to our attention there is a vulnerability affecting the Cisco ASA operating system, specifically the SSL VPN (CVE-2018-0101). The vulnerability allows an attacker to take remote control of the system and is very high risk. This vulnerability is so serious that it received a CVSS Score of 10, the highest possible score. The following hardware is affected by this vulnerability:

• 3000 Series ISA (Industrial Security Appliance)

• 5500 ASA (Adaptive Security Appliance)

• 5500 X Series Next-Generation Firewalls

• ASA Services Module for Cisco Catalyst 6500 Series Switches

• Cisco 7600 Series Routers

• ASA 1000V Cloud Firewall

• Adaptive Security Virtual Appliance

• Firepower 2100 Series Security Appliance

• Firepower 4110 Security Appliance

• Firepower 9300 ASA Security Module

• Firepower Threat Defense Software **Note: This bug affects the 6.2.2. FTD. Versions prior to 6.2.2 aren’t vulnerable.

If your devices are affected by this vulnerability you can take the following steps:

1. Verify if WebVPN is enabled on the any of your devices by following the instructions found here:

2. Patch your devices – Cisco has released software updates that address the vulnerability.

**Please note, it is extremely important that you patch this vulnerability as there is NO workaround that addresses this vulnerability**

Let us know if you have any questions and stay safe out there!