Cisco Security AdvisoryHigh
Advisory ID:
cisco-sa-20161102-cms
First Published:
2016 November 2 16:00 GMT
Version 1.0:
Workarounds:
No workarounds available
Cisco Bug IDs:
CVSS Score:
Base 7.5,
Temporal 6.2
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AV:N/AC:L/Au:N/C:P/I:P/A:P/E:F/RL:OF/RC:C
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AV:N/AC:L/Au:N/C:P/I:P/A:P/E:F/RL:OF/RC:C
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A vulnerability in Cisco Meeting Server and Meeting App could allow an unauthenticated, remote attacker to execute arbitrary code on an affected system.
The vulnerability exists because the software does not perform sufficient boundary checks on user-supplied data. An unauthenticated, remote attacker could exploit this vulnerability by sending crafted IPv6 input to the vulnerable function. A successful exploit could result in an exploitable buffer underflow condition. An attacker could leverage this buffer underflow condition to incorrectly allocate memory and cause a reload of the device or execute arbitrary code with the privileges of the affected application.
Cisco has released software updates that address this vulnerability. Workarounds that address this vulnerability are not available.
This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161102-cms
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Cisco Meeting Server and Meeting App incorporate video, audio, and content-sharing capabilities into software that can be accessed via a conference room, desktop, or mobile device. Cisco Meeting Server and Meeting App work across Cisco video rooms and connect with Skype for Business and other providers to enable a seamless meeting architecture. This capability exists via collaboration between Cisco and Acano, who joined Cisco in early 2016.
Vulnerable Products
This vulnerability affects the following products:
- Cisco Meeting Server releases prior to 2.0.1
- Acano Server releases prior to 1.8.16 and prior to 1.9.3
- Cisco Meeting App releases prior to 1.9.8
- Acano Meeting Apps releases prior to 1.8.35
For example, the following command output shows the version of a device running software version 2.0.6:
system> version 2_0_6Meeting Server software releases prior to 2.0 are available via Acano's website at https://www.acano.com/support/downloads. Acano's release notes addressing this vulnerability in the 1.8 and 1.9 releases can be found at ftp://ftp.acano.com/software/server/1.8/1.8.17/Release%20Notes%20R1.8.17.pdf and https://www.acano.com/publications/2016/09/Release-Notes-R1.9.5.pdf.
Meeting Apps software releases prior to 1.9 are available via Acano's website at https://www.acano.com/support/downloads. Acano's release notes addressing this vulnerability in the 1.8 releases can be found at https://www.acano.com/publications/2016/09/Release-Notes-Acano-Windows-apps-1.8.pdf (Windows) and https://www.acano.com/publications/2016/09/Release-Notes-Acano-OS-X-apps-1.8.pdf (OS X).Products Confirmed Not Vulnerable
No other Cisco products are currently known to be affected by this vulnerability.
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Workarounds that address this vulnerability are not available.
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Cisco has released free software updates that address the vulnerability described in this advisory. Customers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license: http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html.
Additionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades.
When considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories and Alerts page, to determine exposure and a complete upgrade solution.
In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.
Customers Without Service Contracts
Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco Technical Assistance Center (TAC): http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html. Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.
This vulnerability is fixed in the following firmware versions:
- Acano Server version 1.8.16 and later
- Acano Server version 1.9.3 and later
- Cisco Meeting Server 2.0.1 and later
- Acano Meeting Apps version 1.8.35
- Cisco Meeting App version 1.9.8
Customers can download Acano Server Release 1.9.5 and Acano Server Release 1.8.17 from the FTP library on the Acano website.
The Cisco Meeting App firmware updates can be downloaded from the Software Center on Cisco.com by navigating to Products > Conferencing > Video Conferencing > Multiparty Conferencing > Meeting App.
Acano Meeting Apps software version 1.8.35 can be obtained from the software download section of the Acano website.
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The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
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To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
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Show LessVersion Description Section Status Date 1.0 Initial public release. — Final 2016-November-02
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