AV:N/AC:M/Au:N/C:N/I:P/A:N/E:F/RL:OF/RC:C
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A vulnerability in Cisco Meeting Server could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack against a Web Bridge user.
The vulnerability is due to insufficient CSRF protections. An attacker could exploit this vulnerability by convincing the user of the affected system to follow a malicious link or visit an attacker-controlled website. A successful exploit could allow an attacker to submit arbitrary requests to the affected device via the Web Bridge with the privileges of the user.
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-cms
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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 1.9 release can be found at https://www.acano.com/publications/2016/09/Release-Notes-R1.9.5.pdf.
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For additional information about cross-site request forgery attacks and potential mitigation methods, see the Cisco Applied Mitigation Bulletin Understanding Cross-Site Request Forgery Threat Vector.
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Cisco Meeting Server version 2.0.4 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/
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.
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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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Version Description Section Status Date 1.0 Initial public release. — Final 2016-October-19
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