Server Hardware
The physical machine every other layer runs on.
Where It Sits
The small stack marks its layer. Beside it, each related technology links to its own page.
- App
- Framework
- Web Server
- Runtime
- Containers
- OS
- Hypervisor
- Firmware
- HardwareServer Hardware
- Data
About
The server is the physical machine that every other layer runs on. On its own it has no network presence, and it is reached and managed through its BMC. A flaw in the processor or firmware reaches everything running above it.
If It Has a Flaw
A flaw in the processor or firmware sits beneath every other layer, so it can undermine the operating system, the hypervisor and every virtual machine above it.
A flaw exposes what runs on it.
- Containers
Docker
Kubernetes- Operating System
Windows Server
Linux
Well-Known Flaws
Each flaw has a CVE id, the unique number a publicly known vulnerability is given so that every advisory names the same flaw. The id links to the advisory, and the card says what the flaw let an attacker do and how far it reached because of where Server Hardware sits.
CVE-2017-5754 (opens in a new tab)2018
Meltdown
A processor flaw let a program read memory it should not have been able to see.
Reach As a flaw in the processor, beneath the operating system, it could leak data across the whole machine.