Cisco Security Advisory
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AV:N/AC:L/Au:S/C:P/I:N/A:N/E:F/RL:U/RC:C
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A vulnerability in TFTP in Cisco TelePresence Video Communication Server (VCS) Expressway could allow an authenticated, remote attacker to obtain unauthorized access to configuration files from the device by using TFTP.
The vulnerability is due to lack of TFTP authentication and control for the privilege level needed to obtain a configuration file from the device. An attacker with the Mobile and Remote Access (MRA) role could exploit the vulnerability by using TFTP to obtain unauthorized access to configuration files. An exploit could allow the attacker to view sensitive information in the configuration file.
Cisco has confirmed the vulnerability; however, software updates are not available.
To exploit this vulnerability, an attacker must authenticate and have the MRA role on the targeted device. These requirements may reduce the likelihood of a successful exploit.
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Cisco has released bug ID CSCuv78531 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 contact the vendor regarding future updates and releases.
Administrators are advised to allow only trusted users to have network access.
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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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 2015-Aug-25
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