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Cisco Bug: CSCum71311 - MXE-3500 CVE-2013-5211 allowing info to be sent about server

Last Modified

Nov 27, 2020

Products (1)

  • Cisco MXE 3000 Series (Media Experience Engines)

Known Affected Releases

3.3.2

Description (partial)

Symptom:
A vulnerability in Network Time Protocol (NTP) package of Cisco MXE Software could allow an unauthenticated, remote attacker to 
cause a Denial of Service (DoS) condition on an affected device.

The vulnerability is due to processing of 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 5500 times in size. An exploit 
could allow the attacker to cause a Denial of Service (DoS) condition where the affected NTP server is forced to process and respond with large 
response data.

Conditions:
All releases
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
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