Cisco Security Advisory
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AV:N/AC:M/Au:S/C:P/I:P/A:P/E:F/RL:OF/RC:C
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A vulnerability in the administrator web interface of the Cisco TelePresence Video Communication Server (VCS) Expressway could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system of a targeted device.
The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by authenticating to the affected device and submitting crafted HTTP requests. A successful exploit could allow the attacker to execute operating system commands and escalate privileges to increase the level of access to the targeted system.
Cisco has confirmed the vulnerability and software updates are available.
An authenticated, remote attacker could utilize this vulnerability by sending crafted HTTP requests to the targeted device. Devices utilizing default configuration settings are vulnerable to this exploit.
To exploit this vulnerability, an attacker requires authenticated access to the targeted system. Authenticated access may require the attacker to access trusted, internal networks. These requirements could limit 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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Cisco has released bug ID CSCuv11796 for registered users, which contains additional details and an up-to-date list of affected product versions.
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Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to access local systems.
Administrators are advised to allow only privileged users to access administration or management systems.
Administrators are advised to monitor affected systems.
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Cisco customers with active contracts can obtain updates through the Software Center at the following link: Cisco. Cisco customers without contracts can obtain upgrades by contacting the Cisco Technical Assistance Center at 1-800-553-2447 or 1-408-526-7209 or via email at tac@cisco.com.
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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 2015-Aug-18
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