Detections
Analytics
Cisco TelePresence MCU Fragmented Packets Reassembly RCE
critical Nessus Plugin ID 97021
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Synopsis
The remote device is affected by a remote code execution vulnerability.Description
According to the self-reported version, the remote Cisco TelePresence Multipoint Control Unit (MCU) device is affected by a buffer overflow condition that occurs when reassembling fragmented IPv4 and IPv6 packets due to improper size validation. An unauthenticated, remote attacker can exploit this issue, by sending specially crafted fragmented packets to a port receiving content in Passthrough content mode, to cause a denial of service condition or the execution of arbitrary code.Solution
Upgrade to the relevant fixed version referenced in Cisco bug ID CSCuu67675.See Also
Plugin Details
Severity: Critical
ID: 97021
File Name: cisco_telepresence_mcu_sa_20170125_telepresence.nasl
Version: 1.4
Type: remote
Family: CISCO
Published: 2/6/2017
Updated: 7/6/2018
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:cisco:telepresence_mcu_software
Required KB Items: Cisco/TelePresence_MCU/Version, Cisco/TelePresence_MCU/Device
Exploit Ease: No known exploits are available
Patch Publication Date: 1/25/2017
Vulnerability Publication Date: 1/25/2017
Reference Information
CVE: CVE-2017-3792
BID: 95787