A vulnerability in Web Bridge for Cisco Meeting Server could allow an unauthenticated, remote attacker to retrieve memory from a connected server.
The vulnerability is due to missing bounds checks in the Web Bridge functionality. An attacker could exploit this vulnerability by sending a crafted packet to the affected server. An exploit could allow the attacker to disclose a portion of memory from the server for every packet. The disclosed portions of memory could contain sensitive information such as private keys or passwords.
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-20161019-cms1
Cisco Meeting Server incorporates video, audio, and content-sharing capabilities into software that can be accessed via a conference room, desktop, or mobile device. The Cisco Meeting Server product works across Cisco video rooms and connects with Skype for Business and other hardware providers to allow a seamless meeting architecture. This capability exists via collaboration between Cisco and Acano, who joined Cisco in early 2016. 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%201.8.17.pdf and https://www.acano.com/publications/2016/09/Release-Notes-R1.9.5.pdf.
Workarounds that address this vulnerability are not available.
Cisco Meeting Server version 2.0.3 software is available for download at Cisco's Software Download Center: https://software.cisco.com/download/navigator.html?mdfid=286309710
Acano Meeting Server version 1.9.5 software is available for download on Acano's website: https://www.acano.com/support/downloads/
Acano Meeting Server version 1.8.17 software is available for download on Acano's website: ftp://ftp.acano.com/software/server/1.8/1.8.17
Cisco provides information about fixed software in Cisco bugs, which are accessible through the Cisco Bug Search Tool.
When considering software upgrades, customers are advised to consult the Cisco Security Advisories and Responses archive at http://www.cisco.com/go/psirt and review subsequent advisories 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.
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.
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.
Version Description Section Status Date 1.0 Initial public release. — Final 2016-October-19
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