Product Announcements & Troubleshooting WithSecure Elements Vulnerability Management

Elements Vulnerability Management - User's "First and last name showing" as "_Not_SET__ __NOT_SET__" in Elements Portal.
Elements Vulnerability Management API call to enable vulnerability agent scanning fails with error "Request header field X-Forwarded-For is not allowed."
Elements Vulnerability Management product section missing in the Elements Security Center
How to migrate the Elements Vulnerability Management scan node from an old server to a new server?
How does Elements Exposure Management count vulnerability scan target unique IP addresses?
How can I check if specific vulnerability or CVE is covered in Elements Vulnerability Management ?
Scheduled maintenance of Elements VM Cloud Scan Nodes, June 2023
How to create WithSecure Elements Vulnerability Management API keys for authentication
How to add, edit (modify) or remove an existing user in the Elements Vulnerability Management portal?
Where can I order Scan Node license for my Elements Vulnerability Management account?

Elements Vulnerability Management scan node agent installation fails on Ubuntu 18.04 LTS due to "dependencies" and "broken packages" errors

Issue:

I am unable to install the Elements Vulnerability Management scan node agent on Ubuntu 18.04 LTS

Error message:

user@host:~$ sudo apt install ./f-secure-radar-scannodeagent-installer_1.0.0-1_amd64.deb
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'f-secure-radar-scannodeagent-installer' instead of './f-secure-radar-scannodeagent-installer_1.0.0-1_amd64.deb'
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
f-secure-radar-scannodeagent-installer : Depends: aspnetcore-runtime-2.2 but it is not going to be installed
Depends: powershell but it is not going to be installed
Depends: dialog but it is not installable
Recommends: libx11-xcb1 but it is not going to be installed
Recommends: libxrandr2 but it is not going to be installed
Recommends: libasound2 but it is not going to be installed
Recommends: libpangocairo-1.0-0 but it is not going to be installed
Recommends: libatk1.0-0 but it is not going to be installed
Recommends: libatk-bridge2.0-0 but it is not going to be installed
Recommends: libgtk-3-0 but it is not going to be installed
Recommends: libnss3 but it is not going to be installed
Recommends: libxss1 but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

Following installation sources were configured for Ubuntu via /etc/apt/sources.list:

deb http://archive.ubuntu.com/ubuntu bionic main
deb http://archive.ubuntu.com/ubuntu bionic-security main
deb http://archive.ubuntu.com/ubuntu bionic-updates main

Resolution:

One of the packages required by the scan node (dotnet-runtime-deps-2.2) requires liblttng-ust0 which is only available in the universe ATP-repository. You can execute the following commands resolved the issue:

$ sudo add-apt-repository universe
$ sudo apt-get update

If the step above does not resolve the issue, proceed to run the following command:

Install Powershell:

# Update the list of packages

sudo apt-get update

# Install pre-requisite packages.

sudo apt-get install -y wget apt-transport-https software-properties-common

# Download the Microsoft repository GPG keys

wget -q https://packages.microsoft.com/config/ubuntu/18.04/packages-microsoft-prod.deb

# Register the Microsoft repository GPG keys

sudo dpkg -i packages-microsoft-prod.deb

# Update the list of products

sudo apt-get update

# Enable the "universe" repositories

sudo add-apt-repository universe

# Install PowerShell

sudo apt-get install -y powershell

# Start PowerShell

pwsh

Install .net:

wget -qO- https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > microsoft.asc.gpg
sudo mv microsoft.asc.gpg /etc/apt/trusted.gpg.d/
wget -q https://packages.microsoft.com/config/ubuntu/18.04/prod.list
sudo mv prod.list /etc/apt/sources.list.d/microsoft-prod.list
sudo apt-get install apt-transport-https
sudo apt-get update
sudo apt-get install aspnetcore-runtime-2.2

Article no: 000028153