Описание
Windows SMB Information Disclosure Vulnerability
An information disclosure vulnerability exists in the way that the Microsoft Server Message Block 1.0 (SMBv1) server handles certain requests. An attacker who successfully exploited this vulnerability could craft a special packet, which could lead to information disclosure from the server.
To exploit the vulnerability, in most situations, an unauthenticated attacker could send a specially crafted packet to a targeted SMBv1 server.
The security update addresses the vulnerability by correcting how SMBv1 handles these specially crafted requests.
Обходное решение
Disable SMBv1
For customers running Windows Vista and later See Microsoft Knowledge Base Article 2696547.
Alternative method for customers running Windows 8.1 or Windows Server 2012 R2 and later For client operating systems:
- Open Control Panel, click Programs, and then click Turn Windows features on or off.
- In the Windows Features window, clear the SMB1.0/CIFS File Sharing Support checkbox, and then click OK to close the window.
- Restart the system.
For server operating systems:
- Open Server Manager and then click the Manage menu and select Remove Roles and Features.
- In the Features window, clear the SMB1.0/CIFS File Sharing Support check box, and then click OK to close the window.
- Restart the system.
Impact of workaround. The SMBv1 protocol will be disabled on the target system.
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.
Обновления
| Продукт | Статья | Обновление |
|---|---|---|
| Windows Server 2008 for Itanium-Based Systems Service Pack 2 | ||
| Windows Server 2008 for 32-bit Systems Service Pack 2 | ||
| Windows Server 2008 for x64-based Systems Service Pack 2 | ||
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | ||
| Windows 7 for 32-bit Systems Service Pack 1 | ||
| Windows 7 for x64-based Systems Service Pack 1 | ||
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | ||
| Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | ||
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | ||
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) |
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Возможность эксплуатации
Publicly Disclosed
Exploited
Latest Software Release
Older Software Release
EPSS
7 High
CVSS3
Связанные уязвимости
Microsoft Server Message Block 1.0 (SMBv1) allows an information disclosure vulnerability in the way that Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 handles certain requests, aka "Windows SMB Information Disclosure Vulnerability". This CVE ID is unique from CVE-2017-0267, CVE-2017-0268, CVE-2017-0270, CVE-2017-0274, CVE-2017-0275, and CVE-2017-0276.
Microsoft Server Message Block 1.0 (SMBv1) allows an information disclosure vulnerability in the way that Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 handles certain requests, aka "Windows SMB Information Disclosure Vulnerability". This CVE ID is unique from CVE-2017-0267, CVE-2017-0268, CVE-2017-0270, CVE-2017-0274, CVE-2017-0275, and CVE-2017-0276.
EPSS
7 High
CVSS3