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Cisco TelePresence: Cisco TelePresence Multipoint Control Unit Remote Code Execution Vulnerability (CVE-2017-3792)

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Cisco TelePresence: Cisco TelePresence Multipoint Control Unit Remote Code Execution Vulnerability (CVE-2017-3792)

Severity
10
CVSS
(AV:N/AC:L/Au:N/C:C/I:C/A:C)
Published
02/01/2017
Created
07/25/2018
Added
12/12/2017
Modified
12/12/2017

Description

A vulnerability in a proprietary device driver in the kernel of Cisco TelePresence Multipoint Control Unit (MCU) Software could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition. The vulnerability is due to improper size validation when reassembling fragmented IPv4 or IPv6 packets. An attacker could exploit this vulnerability by sending crafted IPv4 or IPv6 fragments to a port receiving content in Passthrough content mode. An exploit could allow the attacker to overflow a buffer. If successful, the attacker could execute arbitrary code or cause a DoS condition on the affected system. Cisco TelePresence MCU platforms TelePresence MCU 5300 Series, TelePresence MCU MSE 8510 and TelePresence MCU 4500 are affected when running software version 4.3(1.68) or later configured for Passthrough content mode. Cisco has released software updates that address this vulnerability. Workarounds that address this vulnerability are not available, but mitigations are available. Cisco Bug IDs: CSCuu67675.

Solution(s)

  • cisco-telepresence-upgrade-latest

References

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