Cisco TelePresence Multipoint Switch contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code on an affected system. Updates are available.
Cisco TelePresence Multipoint Switch contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code on an affected system.
The vulnerability is due to insufficient sanitization of user-supplied input by the affected software. An unauthenticated, remote attacker could exploit this vulnerability by sending specially crafted Cisco Discovery Protocol packets to a targeted device. If successful, the attacker could execute arbitrary code with elevated privileges on the system.
Cisco has confirmed the vulnerability in a security advisory and released software updates.
Cisco TelePresence Multipoint Switch software versions prior to 1.9.0 are vulnerable.
To exploit this vulnerability, an attacker must have a way to submit Ethernet frames directly to an affected device. In most enterprise environments, these devices would be place on internal, trusted networks with firewall restrictions. This access requirement would likely decrease the chances 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.
An unauthenticated, remote attacker could exploit the vulnerability to execute arbitrary code with elevated privileges on an affected system. Successful exploitation could allow the attacker to cause a complete system compromise.
The vulnerability is due to insufficient sanitization of user-supplied input by the affected software while processing malformed Cisco Discovery Protocol packets.
An unauthenticated, remote attacker could exploit this vulnerability by sending crafted Cisco Discovery Protocol packets to the affected software. When processed, the packets could allow an attacker to execute arbitrary code with elevated privileges.
Administrators are advised to apply the appropriate updates.
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.
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 e-mail at firstname.lastname@example.org.
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