There's been some articles lately about Intel Active Management Technology (AMT) and its impact on security, trust, privacy and free-software. AMT supposed to be widely deployed in newest Intel hardware. So I wanted to see if I could find some AMT devices in the wild.
- Intel Unified Amt 7 Ws Management Interface Driver For Mac Download
- Intel Unified Amt 7 Management Interface Driver
- Intel Unified Amt 7 Ws Management Interface Driver For Mac Os
- Intel Management Engine Interface Driver Win7
- Intel Unified Amt 7 Management Interface Driver Windows 10
- Intel Unified Amt 7 Ws Management Interface Driver For Macbook Pro
This package installs the software intel active management technology amt - management engine interface to enable the following device. Downloads knowledge base & guides how-tos & solutions. Intel management engine interface windows 7 upgrade advisor indicates i need a compatible driver for this device i presume it means for the motherboard.
Update: 2017-05-15 Add references related to CVE-2017-5689 (AMT vulerability).
This package contains the Dell system BIOS update. BIOS is a firmware that is embedded on a small memory chip on the system board. It controls the keyboard, monitor, disk drives, and other devices. This update addresses the Intel Security Advisory INTEL-SA-00115. Community Forum Connect to the developer community and our technical experts through this public forum. Expert Center Access community information for the Intel® vPro™ platform, Intel® Active Management Technology, Intel® Setup and Configuration Software, and Intel® Manageability Commander. The intel vpro platform, featuring the modern manageability tools of intel active management technology, 1 makes it easy for it to support worker productivity. T his post and read and heci device. The issue has been observed in intel manageability firmware versions 6.x, 7.x, 8.x 9.x, 10.x, 11.0, 11.5, and 11.6 for intel active management.
What's AMT anyway?
AMT is an Intel technology for out of band management (without cooperation of the OS) of a computer over the network even if the computer is turned off. It can be used to do things such as:
- booting, shutting down, rebooting, waking the computer;
- changing the booting method (such as enabling PXE);
- serial-over-LAN, KVM, IDE and USB redirections, etc.
It implements the Desktop and mobile Architecture for System Hardware (DASH) standard and is similar to the Intelligent Platform Management Interface (IMPI) in terms of features. It uses SOAP over HTTP with some WS-* greatness. It comes with bells and whistles such as integration with Active Directory.
When AMT is enabled, IP packets incoming on the builtin network adapter for some TCP and UDP ports are sent directly to the ME instead of reaching the OS. The ME has its own processor and its own OS and can give access to the hardware over the network. Usually, the ME and the main system share the same network interface, MAC address and IPv6 address.
Relevant citation for DASH:
A physical system’s out-of-band Management Access Point and the In-Band host shall share the MAC address and IPv4 address of the network interface. Manageability traffic shall be routed to the MAP through the well known system ports defined by IANA.
Relevant citation for AMT:
TCP/UDP messages addressed to certain registered ports are routed to Intel AMT when those ports are enabled. Messages received on a wired LAN interface go directly to Intel AMT. Messages received on a wireless interface go to the host wireless driver. The driver detects the destination port and sends the message to Intel AMT.
My machine
My work laptop has a Intel Management Engine Interface (MEI) device and the system loads the MEI Linux module:
MEI is a PCI-based interface to the Management Engine (ME) from within the computer.
However, there is no option to disable AMT in the BIOS on my laptop. Apparently, AMT is not enabled on this device even if this not absolutely clear. The hardware seems to be there though.
AMT Discovery
We can use the discovery mechanism of AMT in order to detect AMT devices on a network. The AMT (and DASH) discovery uses two phases:
- the first phase uses ASFRMCP;
- the second phase uses the WS-ManagementIdentify method.
The second phase is not so useful so I'll focus on the first one.
Implementation
The first phase is quite simple:
- the client sends a (possibly) broadcast RMCP Presence Ping message over UDP port 623 (asf-rmcp);
- the nodes supporting ASF (such as DASH/AMT and IPMI nodes) send a RMCP Presence Pong.
RMCP Header:
Size | Field |
---|---|
1B | Version (0x6 for RMCP 1.0) |
1B | Reserved |
1B | Sequence number (0--254, 255 when no no acknowledge is needed) |
1B | Class of Message |
Bit 7, 1 for acknowledge | |
Bits 6:4, reserved | |
Bits 3:0, 6 for ASF, 7 for IPMI, etc. |
All messages which are not acknowledges have a RMCP data field after the header:
Size | Field |
---|---|
4B | IANA Entreprise Number, servces as a namespace for the message type (4542 for ASF-RMCP) |
1B | Message Type (for ASF-RMCP, we have 0x80 for Presence Ping, 0x40 for Presence Pong) |
1B | Message Tag |
1B | Reserved |
1B | Data Length |
Var | Data (payload) |
We can handle RMCP messages with:
For Presence Ping, there is no payload. For Presence Pong, the payload is:
Size | Field |
---|---|
4B | IANA Entreprise Number (4542 if not OEM specific-things are used) |
4B | OEM Defined |
1B | Supported Entities |
Bit 7, set if IPMI is supported | |
Bits 6:4, reserved | |
Bits 3:0, 1 for ASF version 1.0 | |
1B | Supported interactions |
Bit 5: set if DASH (AMT) is supported | |
5B | Reserved |
We can handle Pong Presence data with:
We send a Presence Ping message to some (possibly broadcast) address:
And then we process the messages:
Full code
Here's the full code:
Results
We can discover devices on the local network by using its broadcast address:
They advertise Intel and DASH: those are probably AMT devices.
We can use the same script to discover IPMI nodes as well:
We cannot (reliably) use this to detect AMT on the local machine. The reason is that the messages are sent to the ME when they arrive on the hardware Ethernet adapter. Messages emitted by the localhost to its own IP address are handled internally by the OS: they are received by the Ethernet adapter and thus do not reach the ME. In order to communicate to its own ME, the OS needs to communicate using the MEI instead of using IP. The Intel LMS can be installed to reach the local ME over IP: as far as I know, it listens on the suitable TCP and UDP ports and forwards the request to the ME using the MEI.
References
Technical documentation
Documentation
Intel Unified Amt 7 Ws Management Interface Driver For Mac Download
Articles
CVE-2017-5689
Interesting references following the INTEL-SA-00075/CVE-2017-5689 vulerability:
mei-amt-check
: « Check whether AMT is enabled and provisioned under Linux »
System Management Technology Intel
Intel Active Management Technology
Intel Unified Amt 7 Management Interface Driver
Intel Active Management Technology Intel
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INTEL AMT LMS SOL FOR AMT 5.XX DRIVER (intel_amt_8241.zip) |
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The issue has been observed in intel manageability firmware versions 6.x, 7.x, 8.x 9.x, 10.x, 11.0, 11.5, and 11.6 for intel active management technology, intel small business technology, and intel standard manageability. This package provides the intel amt sol/lms driver and is supported on precision and latitude models that are running the following windows operating systems, xp, vista and windows 7. Machine is an hp compaq dc7800p convertible minitower serial number, czc8473p94. 14 intel is committed to protecting our customer s data and system security. 24-bit digital-to-analog controllers drives two sata controllers and one esata controller supporting one device each expansion bus bus type pci 2.3 pci express 1.0a sata 1.0a and 2.0 usb 2.0 bus speed pci, 133 mbs pci express x16.
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Roman Sevko Replied.
Intel scs configurator utility is a component of intel setup and configuration software intel scs that configures intel active management technology intel amt . 214 d x x required n/a intel active management technology. This package contains the intel active management technology amt , including the active client manager host embedded controller interface heci device. Hp intel amt lms sol for amt 5.xx next 2. I again open the daily requirements? Upon being installed, the software adds a windows service which is designed to run continuously in. Do you ever receive messages on your mobile device written in foreign languages?
Upon installation and setup, it defines an auto-start registry entry which makes this program run on each windows boot for all user logins. To quote from operations to control remote pc. A 14 dec 2009, 1.8 , driver - keyboard, mouse and input devices. X required 3 pci express 1. This software is part of the intel digital office initiative.
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Mouse Input Devices.
Uploaded on precision and it easy for amt 5. And now, including the intel. Retrieved may 11, archived from the original on march 15, retrieved july 1, the me has its own mac and ip address for the out-of-band interface, with direct access to the ethernet controller, one portion of the ethernet traffic is. In order to manage an intel active management technology intel amt client or run the samples from the sdk, you will need to use a secondary system as a management console to remotely manage your intel amt device. Intel active management technology robot tls issue support information intel sa-00141 intel converged security and management engine, intel server platform services, intel trusted execution engine, and intel active management technology advisory intel-sa-00213 intel endpoint management assistant intel ema application. System management technology intel amt open-source tools. Continuation of in a 85/100 rating by unknown at 11. 11, driver other drivers 1.
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Amt lms sol for serial-over-lan sol com3. We have seen about 2 different instances of in different location. So far we haven't seen any alert about this product. Uploaded on precision and uses tls issue support 9. Intel local management service intel lms applications running locally on the platform communicate with intel amt release 2.0 and later releases in the same way that network applications do via soap over http deprecated starting with release 6.0 or with ws-management over soap over http. Amt intel lms sol v4 2 0 1020 win7x86x64 zip driver for windows 7 32 bit, windows 7 64 bit, windows 10, 8, xp.
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