1. Symantec/
  2. Security Response/
  3. Microsoft XML Core Services CVE-2015-1646 Same Origin Policy Security Bypass Vulnerability

Microsoft XML Core Services CVE-2015-1646 Same Origin Policy Security Bypass Vulnerability

Risk

Medium

Date Discovered

April 14, 2015

Description

Microsoft XML Core Services is prone to a security-bypass vulnerability. An attacker can exploit this issue to bypass the same-origin policy and perform unauthorized actions. This could be used to steal sensitive information or launch other attacks.

Technologies Affected

  • Avaya CallPilot 4.0
  • Avaya CallPilot 4.0.1
  • Avaya CallPilot 5.0
  • Avaya CallPilot 5.0.1
  • Avaya CallPilot 5.1.0
  • Avaya Meeting Exchange - Client Registration Server 5.0
  • Avaya Meeting Exchange - Client Registration Server 5.0.1
  • Avaya Meeting Exchange - Client Registration Server 5.2
  • Avaya Meeting Exchange - Client Registration Server 5.2.1
  • Avaya Meeting Exchange - Client Registration Server 6.0
  • Avaya Meeting Exchange - Client Registration Server 6.2
  • Avaya Meeting Exchange - Recording Server 5.0
  • Avaya Meeting Exchange - Recording Server 5.0.1
  • Avaya Meeting Exchange - Recording Server 5.2
  • Avaya Meeting Exchange - Recording Server 5.2.1
  • Avaya Meeting Exchange - Recording Server 6.0
  • Avaya Meeting Exchange - Recording Server 6.2
  • Avaya Meeting Exchange - Streaming Server 5.0
  • Avaya Meeting Exchange - Streaming Server 5.0.1
  • Avaya Meeting Exchange - Streaming Server 5.2
  • Avaya Meeting Exchange - Streaming Server 5.2.1
  • Avaya Meeting Exchange - Streaming Server 6.0
  • Avaya Meeting Exchange - Streaming Server 6.2
  • Avaya Meeting Exchange - Web Conferencing Server 5.0
  • Avaya Meeting Exchange - Web Conferencing Server 5.0.1
  • Avaya Meeting Exchange - Web Conferencing Server 5.2
  • Avaya Meeting Exchange - Web Conferencing Server 5.2.1
  • Avaya Meeting Exchange - Web Conferencing Server 6.0
  • Avaya Meeting Exchange - Web Conferencing Server 6.2
  • Avaya Meeting Exchange - Webportal 5.0
  • Avaya Meeting Exchange - Webportal 5.0.1
  • Avaya Meeting Exchange - Webportal 5.2
  • Avaya Meeting Exchange - Webportal 5.2.1
  • Avaya Meeting Exchange - Webportal 6.0
  • Avaya Meeting Exchange - Webportal 6.2
  • Avaya Messaging Application Server 5.0
  • Avaya Messaging Application Server 5.0.1
  • Avaya Messaging Application Server 5.2
  • Avaya Messaging Application Server 5.2.1
  • Microsoft Windows 7 for 32-bit Systems SP1
  • Microsoft Windows 7 for x64-based Systems SP1
  • Microsoft Windows Server 2003 Itanium SP2
  • Microsoft Windows Server 2003 SP2
  • Microsoft Windows Server 2003 x64 SP2
  • Microsoft Windows Server 2008 R2 for Itanium-based Systems SP1
  • Microsoft Windows Server 2008 R2 for x64-based Systems SP1
  • Microsoft Windows Server 2008 for 32-bit Systems SP2
  • Microsoft Windows Server 2008 for Itanium-based Systems SP2
  • Microsoft Windows Server 2008 for x64-based Systems SP2
  • Microsoft Windows Vista Service Pack 2
  • Microsoft Windows Vista x64 Edition Service Pack 2

Recommendations

Block external access at the network boundary, unless external parties require service.

Filter access to the affected computer at the network boundary if global access isn't required. Restricting access to only trusted computers and networks might greatly reduce the likelihood of exploits.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.

Deploy NIDS to monitor network traffic for anomalous or suspicious activity. Monitor logs generated by NIDS and by the server itself for evidence of attacks against the server.

Permit privileged access for trusted individuals only.

Permitting access to vulnerable applications for trusted individuals only can reduce the risk of an exploit.
Updates are available. Please see the references or vendor advisory for more information.

Credits

Hormazd Billimoria, Xiaoran Wang, Sergey Gorbaty, Anton Rager, and Jonathan Brossard of Salesforce.com
Copyright © 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 secure@symantec.com.

Disclaimer
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 secure@symantec.com 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.

Threat Intelligence

Subscribe
Follow the Threat Intelligence Twitter feed
STAR Antimalware Protection Technologies
2016 Internet Security Threat Report, Volume 21
  • Twitter
  • Facebook
  • LinkedIn
  • Google+
  • YouTube