The CP210x USB to UART Bridge Virtual COM Port (VCP) drivers are required for device operation as a Virtual COM Port to facilitate host communication with CP210x products. These devices can also interface to a host using the direct access driver.

I can plug in my MX410 to my XPS 13 which is running Windows 11 and my PC can SEE the printer in My Devices when plugged in via USB but no drivers available on the site are allowing the driver install process to detect the printer during installation. I am assuming this is because no drivers have been made compatible for windows 11 but would appreciate staff verification or any sort of work around.


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When you install a USB device, the drivers should be installed first, before connecting the device. Problems can arise if these steps are not followed, including future detection issues. In that case, you can review Device Manager with the device connected, and see if it appears with errors, yellow triangle , red exclamation point

Fedora infrastructure hosts virtIO drivers and additional software agents for Windows virtual machines running on kernel-based virtual machines (KVM). virtIO is a virtualization standard for network and disk device drivers.

Before running the installer, please ensure that the hardware supported by the drivers is not connected. If the hardware is connected when the installer is run, this can prevent the successful installation of the driver files.

For DS4/DS5 to properly function on your Windows 10/11 PC you are required to install necessary first and third party drivers. Some of which, of course, are optional but will improve DS4windows capabilities. Here we will list and give a description of every driver needed to allow your DualShock 4 and DualSense 5 to work. Launching the DS4 app will also ask to install the drivers.

Stay up to date with the latest security and other new features, and improve your productivity. Your Lexmark device performs best when you download the most recent drivers and firmware. Sign up for firmware alerts now.

The Lexmark Universal Print Driver provide users and administrators with a standardized, one-driver solution for their printing needs. Instead of installing and managing individual drivers for each printer model, administrators can install the Lexmark Universal Print Driver for use with a variety of both mono and color laser printers and multi-function devices.

Our PTP adapters use the standard Linux drivers (either installed via a driver RPM or part of an Onload installation). The Enhanced PTP Daemon (sfptpd) takes full advantage of all the PTP hardware features available on our PTP adapters.

NOTE: The Desktop Experience or Server Core installation options of Windows Server 2016 are supported (Nano Server installations are not supported). The v4.x drivers and tools are certified for Windows Server 2008 R2; Windows Server 2012; and Windows Server 2012 R2. The v4.x package will install compatible Windows Server 2012 R2 drivers and tools on Windows Server 2016 systems.

These pages contain OEM-validated drivers and software for adapters that are purchased from Dell and Hewlett Packard Enterprise. For the latest Solarflare drivers and software please select Drivers and Software.

The Linux diagnostics (sfreport) is a script that can be used to generate an HTML report which contains information on the system, drivers and adapter which is useful to Solarflare support and engineering teams.

The built-in drivers are already included with Windows or are available through Windows update.

 The built-in drivers support the basic functions of your Brother machine.

 Scanning, PC-FAX and Control Center may not be available depending on your Brother machine, method of connection and Windows version.

 > Click here to see details of the supported functions by the built-in drivers.

As of version 2.5.0.0, the Adafruit drivers package is no longer signed, and some of the drivers it contains are also no longer signed. You'll need to click the second item in this dialog box when it appears:

In information security, even seemingly insignificant issues could pose a significant threat. One notable vector of attack is through device drivers used by legitimate software developers. There are numerous available drivers to support legacy hardware in every industry, some of which are from businesses that have long stopped supporting the device. To continue operations, organizations rely upon these deprecated device drivers.

This creates a unique attack vector, as Microsoft Windows allows loading kernel drivers with signatures whose certificates are expired or revoked. This policy facilitates threat actors to disable security software functions or install bootkits using known vulnerable drivers. Since the Windows 11 2022 update, the vulnerable drivers are blocked by default using Hypervisor-Protected Code Integrity (HVCI). However, this banned-list approach is only effective if the vulnerable driver is known in advance.

The Carbon Black Threat Analysis Unit (TAU) discovered 34 unique vulnerable drivers (237 file hashes) accepting firmware access. Six allow kernel memory access. All give full control of the devices to non-admin users. By exploiting the vulnerable drivers, an attacker without the system privilege may erase/alter firmware, and/or elevate privileges. As of the time of writing in October 2023, the filenames of the vulnerable drivers have not been made public until now.

Previous research such as ScrewedDrivers and POPKORN utilized symbolic execution for automating the discovery of vulnerable drivers. As far as TAU researched, symbolic execution (or the specific implementations based on angr) fails at an unignorable rate by causing path explosions, false negatives and other unknown errors.

TAU automated the hunting process of vulnerable WDM/WDF drivers by using an IDAPython script. IDAPython is the Python programming language to access APIs of IDA Pro (hereinafter called IDA), which is a commercial disassembler widely used by reverse engineers. The script implementation is based on the Hex-Rays Decompiler SDK and will be detailed in the next section below.

The IDAPython script has two functions: triage and analysis. The triage function robustly detects potentially vulnerable drivers from large sets of samples in IDA batch mode (command-line interface) execution. After the triage, we need to confirm that the detected drivers are truly vulnerable on IDA GUI. The analysis function substantially assists the tedious manual validation.

The IOCTL handler identification method depends on the driver type. In WDM drivers, the triage function code simply detects an assignment to the MajorFunction array member of the DRIVER_OBJECT structure then applies the function type. On the other hand, the method for WDF drivers requires a multiple-step procedure.

Moreover, WDF drivers built with debug information, or some older drivers, create function wrappers when calling WDF APIs. In that case, the script detects the wrappers and sets their function types then traces back assignments to the arguments in the parent functions.

The script handles WDF drivers in the same way, but it additionally sets argument names and types of the following WDF APIs handling user data I/O since IDA does not support WDF type information by default.

Next, TAU de-duplicated the samples based on imphash then executed the IDAPython script for the imphash-unique samples in batch mode. The extracted samples were about 300 WDM drivers and 50 WDF. Among them, TAU excluded drivers with the following conditions.

Those drivers are not vulnerable in terms of access control, though privileged attackers can still abuse them as the Bring Your Own Vulnerable Driver (BYOVD) techniques by loading and exploiting the drivers for their purposes like disabling security software.

Finally, TAU discovered 34 vulnerable drivers (30 WDM, 4 WDF) with firmware access, including ones made by major chip/BIOS/PC makers. This is the number based on the unique filenames. Practically, there are 237 file hashes in the wild. All discovered drivers give full control of the devices to non-admin users. TAU could load them all on HVCI-enabled Windows 11 except five drivers.

As shown in Figure 16, four drivers require to send multiple IOCTL requests for the memory mapped I/O operations above. On the other hand, two drivers (IoAccess.sys and phymem_ext64.sys) return a user-mode address pointer mapping the SPI registers in the output buffer, so a single IOCTL request is enough to erase firmware.

The EoP PoCs (eop_*.py) were implemented for the three drivers included in Table 2. They are classic token stealing exploits that read a token value of the System process in the _EPROCESS structure and write the value into the field of the Python exploit process. In Figure 19 below, a non-privileged user could run cmd.exe with system integrity level by the exploit on HVCI-enabled Windows 11.

Two drivers allow arbitrary virtual memory access directly for EoP. Another driver (stdcdrvws64.sys) demands two IOCTL requests per access to translate a virtual address to a physical one by MmGetPhysicalAddress then read/write data at the physical address through arbitrary memory mapped I/O.

In April and May 2023, TAU reported the vulnerabilities to the vendors whose drivers had valid signatures at the time of discovery. Only two vendors fixed the vulnerabilities and the following CVEs were assigned.

By implementing the static analysis automation script, TAU discovered 34 unique vulnerable drivers (237 file hashes) that were not recognized previously. WDM drivers are still widely used, but we can also discover and exploit vulnerable WDF drivers in a similar fashion.

While a lot of vulnerable drivers have been reported by researchers, TAU found not only old vulnerable drivers but also new ones with valid signatures. It seems likely that we need more comprehensive approaches in the future than the current banned-list method used by Microsoft. For example, a simple prevention of loading drivers signed by revoked certificates will block about one-third of the vulnerable drivers disclosed in this research. ff782bc1db

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