A Vulnerability is a state in a computing system (or set of systems) which either (a) allows an attacker to execute commands as another user, (b) allows an attacker to access data that is contrary to the specified access restrictions for that data, (c) allows an attacker to pose as another entity, or (d) allows an attacker to conduct a denial of service.Advisories relating to Symantec products may be viewed here.

Microsoft Exchange Server CVE-2018-0924 Information Disclosure Vulnerability

Date Discovered:
13 March 2018
Microsoft Exchange Server is prone to an information-disclosure vulnerability. Attackers can exploit this issue to obtain sensitive information that may aid in launching further attacks.
Technologies Affected
  • Microsoft Exchange Server 2010 SP3 Update Rollup 20
  • Microsoft Exchange Server 2013 Cumulative Update 18
  • Microsoft Exchange Server 2013 Cumulative Update 19
  • Microsoft Exchange Server 2013 SP1
  • Microsoft Exchange Server 2016 Cumulative Update 7
  • Microsoft Exchange Server 2016 Cumulative Update 8
  • Block external access at the network boundary, unless external parties require service.
    If global access isn't needed, block access at the network perimeter to computers hosting the vulnerable operating system.
  • Deploy network intrusion detection systems to monitor network traffic for malicious activity.
    Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity such as unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.
  • Communicate sensitive information through secure means.
    Implement multiple layers of encryption and authentication to help mitigate against exposure from this and other latent vulnerabilities.
Updates are available. Please see the references or vendor advisory for more information.
Richard Shupak

Copyright (c) 2009 Symantec Corporation

Permission to redistribute this alert electronically is granted as long as it is not edited in any way unless authorized by Symantec Security Response. Reprinting the whole or part of this alert in any medium other than electronically requires permission from


The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information.Symantec, Symantec products, Symantec Security Response, and are registered trademarks of Symantec Corp. and/or affiliated companies in the United States and other countries. All other registered and unregistered trademarks represented in this document are the sole property of their respective companies/owners.