Windows: Stop Code 0x50 srv.sys caused by EternalBlue Exploit

Summary: This article details how to solve Stop Code 0x50 srv.sys caused by EternalBlue Exploit.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.

Symptoms

Microsoft released a Security Bulletin regarding SMBv1.0This hyperlink is taking you to a website outside of Dell Technologies.. The most severe of the vulnerabilities could allow remote code execution if an attacker sends specially crafted messages to a Microsoft Server Message Block 1.0 (SMBv1) server.

You can identify that this issue is occurring by analyzing the Stack on the Memory Dump and finding these specific lines:
 

ffffd001`078b0700 fffff801`71252360 nt!KiPageFault+0x12f
ffffd001`078b0890 fffff801`712522a5 srv!SrvOs2FeaToNt+0x48
ffffd001`078b08c0 fffff801`7127369b srv!SrvOs2FeaListToNt+0x125
ffffd001`078b0910 fffff801`7127c8ba srv!SrvSmbOpen2+0xc3
ffffd001`078b09b0 fffff801`7127fb2e srv!ExecuteTransaction+0x2ca
ffffd001`078b09f0 fffff801`7120d84f srv!SrvSmbTransactionSecondary+0x40b
ffffd001`078b0a90 fffff801`7120da20 srv!SrvProcessSmb+0x237
ffffd001`078b0b10 fffff801`7124cac8 srv!SrvRestartReceive+0x114
ffffd001`078b0b50 fffff800`13591306 srv!WorkerThread+0x5248
ffffd001`078b0bd0 fffff800`1317f280 nt!IopThreadStart+0x26
ffffd001`078b0c00 fffff800`131d89c6 nt!PspSystemThreadStartup+0x58
ffffd001`078b0c60 00000000`00000000 nt!KiStartSystemThread+0x16 



Affected Systems:
Windows Server 2008
Windows Server 2008 R2
Windows Server 2012
Windows Server 2012 R2
Windows Server 2016
Windows 7
Windows 8
Windows 8.1
Windows 10
 

 


Cause

.

Resolution

Microsoft published a Blog PostThis hyperlink is taking you to a website outside of Dell Technologies. about the SMB1 explaining that it is obsolete and should not be used on the latest OS Versions.

Since this issue is caused by an Exploit, it is required to run an Antivirus Program on the affected System.

Workarounds

The following workaroundsThis hyperlink is taking you to a website outside of Dell Technologies. may be helpful in your situation:

  • Disable SMBv1

    For customers running Windows Vista and later

    See Microsoft Knowledge Base Article 2696547This hyperlink is taking you to a website outside of Dell Technologies..

    Alternative method for customers running Windows 8.1 or Windows Server 2012 R2 and later

    For client operating systems:

    1. Open Control Panel, click Programs, and then click Turn Windows features on or off.
    2. In the Windows Features window, clear the SMB1.0/CIFS File Sharing Support checkbox, and then click OK to close the window.
    3. Restart the system.
       

    For server operating systems:

    1. Open Server Manager and then click the Manage menu and select Remove Roles and Features.
    2. In the Features window, clear the SMB1.0/CIFS File Sharing Support check box, and then click OK to close the window.
    3. Restart the system.
       

    Impact of work around. The SMBv1 protocol is disabled on the target system.
    SMBv1.0 offer support for legacy system (Windows XP, Windows Vista, Windows 2000, Windows 2003, Windows 2003 R2.)

    How to undo the workaround. Retrace the workaround steps and select the SMB1.0/CIFS File Sharing Support check box to restore the SMB1.0/CIFS File Sharing Support feature to an active state.

Affected Products

Microsoft Windows Server 2016, Microsoft Windows 2012 Server, Microsoft Windows 2012 Server R2

Products

PowerEdge FC640, PowerEdge M640, PowerEdge M640 (for PE VRTX), PowerEdge MX740C, PowerEdge MX840C, PowerEdge R240, PowerEdge R250, PowerEdge R340, PowerEdge R350, PowerEdge R440, PowerEdge R450, PowerEdge R540, PowerEdge R550, PowerEdge R640 , PowerEdge R6415, PowerEdge R650, PowerEdge R650xs, PowerEdge R6515, PowerEdge R6525, PowerEdge R740, PowerEdge R740XD, PowerEdge R740XD2, PowerEdge R7415, PowerEdge R7425, PowerEdge R750, PowerEdge R750XA, PowerEdge R750xs, PowerEdge R7515, PowerEdge R7525, PowerEdge R840, PowerEdge R940, PowerEdge R940xa, PowerEdge T140, PowerEdge T150, PowerEdge T340, PowerEdge T350, PowerEdge T40, PowerEdge T440, PowerEdge T550, PowerEdge T640 ...
Article Properties
Article Number: 000141143
Article Type: Solution
Last Modified: 11 Dec 2024
Version:  4
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