CVE ID: CVE-2013-5211
Release Date: 2014 January 15 00:28 UTC (GMT)
Last Updated: 2014 April 30 14:36 UTC (GMT)
SummaryA vulnerability in the Network Time Protocol (NTP) package of several Cisco products could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
The vulnerability is due to processing MODE_PRIVATE (Mode 7) NTP control messages, which have a large amplification vector. An attacker could exploit this vulnerability by sending Mode 7 control requests to NTP servers and observing responses amplified up to 5,500 times in size. An exploit could allow the attacker to cause a DoS condition in which the affected NTP server is forced to process and respond with large response data.
|Cisco NX-OS Software||CSCum52148||5.0/4.5|
|Cisco IOS XE Software||CSCtd75033||5.0/4.1|
|Cisco Unified Communications Manager||CSCum76937||5.0/4.5|
|Cisco MXE 3500 (Media Experience Engine)||CSCum71311||5.0/4.5|
|Cisco Videoscape Distribution Suite Transparent Caching (VDS TC)||CSCum93691||5.0/4.1|
|Cisco Digital Content Manager (DCM) Software||CSCun23321||5.0/4.8|
|Cisco Video Surveillance Operations Manager Software||CSCun44909||5.0/4.8|
|Cisco Unified Contact Center Express||CSCun84909||5.0/4.8|
|Cisco Unified Intelligence Center||CSCun84943||5.0/4.8|
|Cisco Application and Content Networking System (ACNS) Software||CSCuo21109||5.0/4.8|
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Customers who wish to upgrade to a software version that includes fixes for these issues should contact their normal support channels. Free software updates will not be provided for issues that are disclosed through a Cisco Security Notice.
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|Cisco Security Advisory||Cisco IPS Signature||Alerts|