Logitech Unifying Receiver Driver
I just go with the stock Windows 10 installed drivers. If I have issues I only ever install the Unifying software. Usually I only use it to unlink a keyboard from a mouse keyboard combo and link the keyboard to my trackballs Unifying receiver, so I only have to use the one receiver. Mar 28, 2018 If you've lost your Unifying receiver like a dingus as I have, this is the correct replacement. It actually measures a little smaller than the previous one, but it seems to work every bit as reliably. I bought it to replace a K400 Plus unifying receiver. Do NOT buy the C-U0007 Unifying receiver like I did.
The Logitech Unifying receiver is an extremely small dedicated USB wireless receiver, based on the nRF24L-family of RF devices,[1] that allows up to six compatible Logitech human interface devices (such as mice, trackballs, trackpads, and keyboards; headphones are not compatible) to be linked to the same computer using 2.4 GHz band radio communication. Receivers that are bundled with a Logitech product are paired with the device at the factory. When purchasing a replacement receiver or connecting multiple devices to one receiver, pairing requires the freely available Logitech Unifying software. Devices pair to Unifying Receivers similar to Bluetooth pairing[2] although the underlying protocols are incompatible. Logitech receivers compatible with the Unifying protocol can be identified by the orange Unifying logo which also distinguishes them from Logitech Nano receivers. Nano receivers pair in a similar manner, but don't use the Unifying protocol, and only pair with single devices.
Each device can pair to one receiver per profile. While most devices only have one profile, newer products such as the Logitech MX Master, MX Anywhere series, and M720 Triathlon, allow multiple profiles. These devices can be connected to multiple receivers simultaneously. This allows the use of different receivers in several computers (e.g., with a desktop and a laptopcomputer) by simply changing profiles on the mouse. This multi computer function is further augmented by Logitech Flow (software KVM solution) which is similar to Synergy. For other devices, the receiver and input devices can be moved together from one computer to another maintaining their paired status after being unplugged.[2]
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Some (older) Unifying devices limit the number of allowable pairing changes to a maximum of 45 times. Once the 45th connection is made, it is no longer possible to connect such a device to a further, different receiver. For users who often switch a Unifying device between multiple PCs or laptops with individual receivers, this connection limit can become an issue. For example, a user who frequently switches a mouse between two receivers (e.g. at work and home) will quickly exhaust the limit of available pairing switches.[3] Newer devices can switch pairings an unlimited number of times.
Pairing software is available for Microsoft Windows and Mac OS X from Logitech. Wireless devices using the Unifying Receiver are supported since Linux 3.2.[4]Software to manage Unifying devices on Linux is available from third party developers, like Solaar.[5]
In addition, many companies have made USB wireless receivers very similar to Logitech's, though it is unknown if Logitech has taken legal action against these companies or even if Logitech holds a patent for the technology. Logitech devices are incompatible with many of these 'off brand' receivers, though some are expressly designed as inexpensive alternatives to the Logitech Unifying receiver that can be paired with Logitech devices.
Logitech Unifying receivers (LURs) are often included in wireless Logitech keyboard, mouse, and combo sets, though they may be purchased alone.
- 1Security
- 1.1Mousejacking / Keyjacking
Security[edit]
Mousejacking / Keyjacking[edit]
Mousejacking, first reported by Bastille Networks, Inc.,[citation needed] is the sending of malicious radio signals (packets) wirelessly to an unsuspecting user through Logitech Unifying wireless technology. The exploit takes advantage of a users vulnerable Logitech Unifying receiver and unencrypted signals within a range of about 100 meters. Possible exploits include:
- Keystroke Injection by either spoofing a paired mouse or keyboard
- Forced Pairing
Affected Devices And Firmware[edit]
| Device | USB ID |
|---|---|
| Unifying receiver | 046d:c52b |
| Unifying receiver | 046d:c539 |
| Logitech Wireless Gaming Mouse G900 | 046d:c081 |
| Logitech Wireless Keyboard K360 | 046d:4004 |
| Logitech Multi-Device Wireless Keyboard K370s | 046d:4061 |
| Logitech Multi-Device Wireless Keyboard K375s | 046d:4061 |
| Logitech Wireless Touch Keyboard K400r | 046d:400e, 046d:4024 |
| Logitech Wireless Touch Keyboard K400 Plus | 046d:404d |
| Logitech Wireless Solar Keyboard K750 | 046d:4002 |
| Logitech Multi-Device Wireless Keyboard K780 | 046d:405b |
| Logitech Illuminated Living-Room Keyboard K830 | 046d:404c, 046d:4032 |
| Logitech Performance Wireless Keyboard MK850 | 046d:4062 |
| Logitech Wireless Mouse M335 | |
| Logitech Zone Touch Mouse T400 | 046d:4026 |
| Logitech Wireless Mouse M545 | |
| Logitech Wireless Mouse M560 | |
| Logitech Touch Mouse M600 | 046d:401a |
| Logitech Touch Mouse T620 | 046d:4027 |
| Logitech Wireless Rechargeable Touchpad T650 | 046d:4101 |
| Firmware Version | Vulnerabilities |
|---|---|
| 012.001.00019 | Affected by Bastille security issues #1, #2, #3[6][7] |
| 012.003.00025 | Affected by Bastille security issues #1, #2, #3[6][7] |
| <012.005.00028 | Affected by Bastille security issues #1, #2, #3, #11, #13[6][7] |
| 012.005.00028 | Affected by Bastille security issues #11, #13[6][7] |
| 012.007.00029 | Affected by Bastille security issue #13[7] |
| Firmware Version | Vulnerabilities |
|---|---|
| <024.003.00027 | Affected by Bastille security issue #2, #3, #11, #13[6][8] |
| 024.003.00027 | Affected by Bastille security issue #11, #13[6][8] |
| 024.005.00029 | Affected by Bastille security issue #13[8] |
Firmware Not Affected[edit]
| Firmware Version | Notes |
|---|---|
| 012.008.00030[7] | |
| 012.009.00030 | Identical to 012.008.00030 but DFU signed[9] |
| Firmware Version | Notes |
|---|---|
| 024.006.00030[8] | |
| 024.007.00030 | Identical to 024.006.00030 but DFU signed[10] |
Response[edit]
In 2016, Logitech has responded with a few Unifying receiver firmware updates as new exploits have been reported.[11]
For Linux users there are native options to flash and experiment with such as fwupd and MouseJack.[1] However, with these tools a separate firmware binary is still required. Flashing on a Linux host via a hypervisor such as VirtualBox along with a Windows virtual guest image and the Windows Logitech update executable is also possible. If using a Windows virtual guest, it is recommended to have a second available pointing device while the dongle is being updated. The second pointing device may be needed to allow the user to select and enable pass through of the unifying receiver via the hypervisor task bar after executing the firmware updater so that the device is found and updated.
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It should also be noted that updating the Unifying receiver firmware to versions RQR12.xx (xx >= 08) and RQR24.xx (xx >= 06) can limit some functionality of certain paired devices. These devices require their own firmware updates to restore full functionality with patched receivers.
New Developments[edit]
As of July 9, 2019 there has been another set of vulnerabilities documented and disclosed by a separate researcher.[12] Firmware fixes for the new vulnerabilities have not been released.
See also[edit]
References[edit]
- ^ abNewlin, Marc (2016-08-07). 'MouseJack device discovery and research tools'. Retrieved 2019-07-25.
- ^ abGallegos, Gary. 'Gadgets: The Logitech Unifying Receiver (aka 'fake bluetooth')'. Archived from the original on 4 March 2016. Retrieved 2019-07-25.
- ^'Limitations on Unifying devices'. Archived from the original on 2019-10-07. Retrieved 2019-07-25.
- ^Nestor Lopez Casado (2011-09-15). 'HID: Add full support for Logitech Unifying receivers'. Linux kernel. Retrieved 2019-07-25.
- ^Solaar on GitHub
- ^ abcdef'MouseJack Affected Devices'. Bastille Networks. Retrieved 2019-07-25.
- ^ abcdefViredaz, Marc (2017-12-22). 'RQR12.08 Build 0030'. Retrieved 2019-07-25.
- ^ abcdViredaz, Marc (2017-12-22). 'RQR24.06 Build 0030'. Retrieved 2019-07-25.
- ^Viredaz, Marc (2017-12-22). 'RQR12.09 Build 0030'. Retrieved 2019-07-25.
- ^Viredaz, Marc (2017-12-22). 'RQR24.07 Build 0030'. Retrieved 2019-07-25.
- ^LogiLaurie (2016-07-28). 'Logitech Response to Research Findings'. Archived from the original on 2019-07-09. Retrieved 2019-07-25.
- ^mame82 (2019-07-09). 'Summary / Overview of known Logitech wireless peripheral vulnerabilities'. Retrieved 2019-07-25.
External links[edit]
- Solaar on GitHub - Linux devices manager for the Logitech Unifying Receiver