CERT/CC Reports a Microsoft SMB Vulnerability

["US-CERT" <US-CERT () ncas us-cert gov>]

U.S. Department of Homeland Security US-CERT

National Cyber Awareness System:

 

CERT/CC Reports a Microsoft SMB Vulnerability [ 
https://www.us-cert.gov/ncas/current-activity/2017/02/03/CERTCC-Reports-Microsoft-SMB-Vulnerability ] 02/03/2017 03:48 
AM EST 
Original release date: February 03, 2017

CERT Coordination Center (CERT/CC) has released information on a Server Message Block (SMB) vulnerability affecting 
Microsoft Windows. Exploitation of this vulnerability could allow a remote attacker to cause a denial-of-service 
condition or take control of an affected system.

No patches are currently available, but mitigations include blocking outbound SMB connections (TCP ports 139 and 445 
and UDP ports 137 and 138) from the local network to the wide-area network. For more information, see VU#867968 [ 
http://www.kb.cert.org/vuls/id/867968 ].

________________________________________________________________________

This product is provided subject to this Notification [ http://www.us-cert.gov/privacy/notification ] and this Privacy 
& Use [ http://www.us-cert.gov/privacy/ ] policy.

________________________________________________________________________

A copy of this publication is available at www.us-cert.gov [ https://www.us-cert.gov ]. If you need help or have 
questions, please send an email to info () us-cert gov. Do not reply to this message since this email was sent from a 
notification-only address that is not monitored. To ensure you receive future US-CERT products, please add US-CERT () 
ncas us-cert gov to your address book. 

OTHER RESOURCES: Contact Us [ http://www.us-cert.gov/contact-us/ ] | Security Publications [ 
http://www.us-cert.gov/security-publications ] | Alerts and Tips [ http://www.us-cert.gov/ncas ] | Related Resources [ 
http://www.us-cert.gov/related-resources ]  

STAY CONNECTED: Sign up for email updates [ http://public.govdelivery.com/accounts/USDHSUSCERT/subscriber/new ]