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Cisco TelePresence Video Communication Server Expressway Access Vulnerability

Cisco-SA-20150814-CVE-2015-4319 · Medium · Published · Updated

A vulnerability in the Password Change functionality in the Administrative Web Interface of the Cisco TelePresence Video Communication Server (VCS) Expressway could allow an authenticated, remote attacker to make unauthorized changes to user passwords. The vulnerability is due to insufficient enforcement in the authorization process. An attacker could exploit this vulnerability by sending a specially crafted packet to the target device. An exploit could allow the attacker to change the password of active users to conduct further attacks. Cisco has confirmed the vulnerability and software updates are available. An authenticated, remote attacker could utilize this vulnerability by sending a specially crafted packet to the targeted device. 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.

Cisco advisory · CSAF JSON

Workarounds

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 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.

CVEsCVE-2015-4319
Cisco Bug IDsNA
CVSS ScoreBase 4.0
Base 4.0 AV:N/AC:L/Au:S/C:N/I:P/A:N/E:F/RL:OF/RC:C
Product Names From Source
Cisco TelePresence Video Communication Server (VCS) Expressway

Related Products

Product CVE Evidence
Cisco TelePresence Video Communication Server (VCS) Expressway CVE-2015-4319 Cisco OpenVuln
Cisco TelePresence Video Communication Server (VCS) CVE-2015-4319 Cisco OpenVuln
Cisco TelePresence CVE-2015-4319 Cisco OpenVuln