I am using PVS 2012 to deploy Windows 2019 server on ESXi 6.5. When I run Windows update, it keeps pushing the "VMware, Inc. - net - 1.8.17.0" driver update, and I cannot prevent it from installing. This causes the image to BSOD during boot after installation.

I have seen this a couple of times. I generally recommend to NOT update virtual machine tools drivers via Windows Update, this has to be a controlled process. You can configure a group policy/registry setting, to prevent drivers from Windows Update/WSUS.


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After one week, 4 ESXi servers lost network connectivity, vSphere HA got triggered and shutdown the VMs. Issue got escalated big time. We asked VMware Support. GSS concluded the Network card was a problem. We went to dell. Dell asked me, why did you not upgraded the driver. I asked where is the driver. He said driver is owned by VMware. VMware says they do not own neither firmware or driver.

The required firmware can usually be downloaded from the vendor's web site, as it's not specific to vSphere. The vSphere drivers - no matter whether these are VMware's native inbox drivers, or vendor "async" drivers, can usually be downloaded from a common place on VMware's web site.

I have deployed a couple of 25G NIC based Dell Hosts in the past. Based on my experience with hundreds of different Intel/Broadcom Hosts i can say today its more complicated than in it was in the past. You have to check the certified driver in combination with the right Firmware. Speaking for Dell the FW comes always from dell.com/support and the driver always from vmware.com. But it doesnt mean that the latest FW is the one which works best or is certified.

So you need to find out the PCIID/Vendor/SubID for your given device and than go the the VMware HCL and search for the device ID (the search fields in the upper right). I always picks the IDs from the TSR which is a report i create trough the iDRAC -> Troubleshooting/SupportAssist. The TSR contains a HTML based report with detailed information.

The HCL than returns a list of all testet combinations of FW and Driver. A async driver means that this driver is updated and provided not trough the vanilla VMware ESXi iso. It needs to manually download from vmware.com. It can be included in the $Vendor ESXi ISO which Dell and others provide.

It's complicated for Dell HW. Dell does not provide a central location for the compatible driver and firmware combination. HPE does a good job in publishing software recipe document for each new vSphere update (major and minor) and HPE SPP released. Your best bet for Dell would be to use the latest Firmware repository and latest Dell supplied ESXi image available at that time.

But the driver is not here on Dell site. This sound funny. VMware Support suggests we are not responsible for Driver and Dell says we only offer firmware. This is chicken and egg problem but at the cost of customer money.

Well, i understand but its not knew (at least for me because i have to deal with it on a daily basis). The repository (catalog) is only updated every few weeks/month but new FW releaes comes every "day" and are visible under the Server Model or better when using your Service Tag of your device for search on dell.com/support.

I spend my time i finding 214.4.32.0. My GSS engineer was trying to give super explanation how they have moved the dots and took no responsibility about this data. Even though it is on their website. This firmware version is not there on Vmware website. This is on dell website and you see only on iDRAC on via esxcli.

I doubt VMware is testing all the driver and firmware version combinations for each IO device. Even the note on HCL states "Firmware versions listed are the minimum supported versions". Moreover, the HCL does not always list the FW version of lot of ethernet controllers (refer the attachment).

By relying on Dell FW ISO, we are not completely in uncharted waters. As the expectation is Dell has tested and certified the Firmwares for the operating systems listed in their support release document.

Yes its true that often drivers are listed without the FW version. Keep also notice than 2 FW columns exists. But as we can see that in the terms of a "async driver" the HCL provides the URL for downloading the right driver from vmware.com. There is also the Driver&Tools section within the ESXi download area which often provides driver packages.

What drives me nuts is that Broadcom sold some models to QLogic and now there is a name mismatch in ordering documents/systeminventory which ends that the software packages sometime have different brand names as the HW.

I just received a few Dell servers to test as replacements for the vendor we currently use for vsphere. I installed ESXi 6.5u1, patched up for spectre/meltdown so I'm now on build 7967591. The servers are hooked into storage via multiple 10gig ethernet paths handled by dual port X710 NIC's:

Almost immediately after putting any real load on them, the NIC simply stops passing traffic. What's worse, it remains in an UP state, so vmware never tries the failover link. Seeing this on the vmware side:

Is it safe to assume this NIC is still broken and will never see fixes, with both sides blaming each other? Can't say it leaves me very happy with Dell either as they knew we were doing vsphere on these, yet they still bundled them.

Unfortunately, if you try to use that tool, it simply identifies your Dell-branded X710 as "Intel Ethernet 10G 4P X710/I350 rNDC" version 6.00 and update not available. Dell's latest package for it on the 14g server generation, is 18.3.0 which just bundles the 6.00 firmware.

This put it back to the i40e version and this has been stable although the update manager issue is driving us nuts. I have some forums where people said they ripped the nics out completely and replaced them (that is extreme).

Because we had our vCenter server on the host that went down we couldn't bring it back up very easily. We had to remove one of the nic's from the distributed switch and create a standard switch in the same network which we could use to bring it back online and then we switched back to the original network. This sounds easy but we burnt a few hours thinking of alternatives to this.

Please be informed Malicious Driver Detection is and open issue for ESX i40en driver version 1.5.8. The Malicious Driver Detection issue that we are aware of will be addressed in the next i40en driver release. The next driver is going through VMware Certification process and expected to release in a couple of weeks. We will have an official statement on this issue by next week. Thank you for your patience on this matter.

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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.

While this approach is straightforward, the devil is in the details. As shown in the examples of Figure 1 and 2, sometimes WDF_BIND_INFO.FuncTable points the pointer to WDFFUNCTIONS (PWDFFUNCTIONS), and sometimes it points WDFFUNCTIONS directly. TAU found that it depends on the WDF version (WDF_BIND_INFO.Version). Specifically, version 1.15.0 and later is true of the former. Version 1.13.0 and below is applicable to the latter. 152ee80cbc

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