Cisco Security Advisory
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AV:N/AC:M/Au:S/C:N/I:N/A:C/E:F/RL:U/RC:C
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A vulnerability in the Media Snapshot code of Cisco TelePresence Multipoint Switch (CTMS) could allow an authenticated, remote attacker to cause the reload of the affected system, creating a denial of service (DoS) condition.
The vulnerability is due to a failure in handling requests for Media Snapshot while the meeting is terminated. An attacker could exploit this vulnerability by sending continuous requests for Media Snapshot.
Cisco has confirmed the vulnerability in a security notice; however, software updates are not available.
To exploit this vulnerability, an attacker must be able to send continuous requests to the targeted device, which may reside on trusted, internal networks that the attacker would likely need to access. In addition, the attacker must be able to authenticate to the targeted device. These access requirements may reduce the likelihood of a successful exploit.
Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.
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Customers are advised to consult Cisco bug ID CSCuh44796 for a complete list of affected product versions.
Vulnerable Products
At the time this alert was first published, Cisco TelePresence Multipoint Switch versions 1.9 and prior were vulnerable. Later releases of Cisco TelePresence Multipoint Switch may also be vulnerable.Products Confirmed Not Vulnerable
No other Cisco products are currently known to be affected by these vulnerabilities.
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Administrators are advised to contact the vendor regarding future updates and releases.
Administrators are advised to allow only trusted users to have network access.
Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.
Administrators are advised to monitor affected systems.
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Software updates are not available.
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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 Release NA Final 2013-Sep-30
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