Requests to NTP servers and clients and observing responses amplified up to 40 times in size. An attacker could exploit this vulnerability by sending Mode 6 control The vulnerability is due to processing of MODE_CONTROL (Mode 6) NTP control messages which have a certain amplification vector. ![]() Limited Mode 6 denial-of-service vulnerability on NTP server and clientĪ vulnerability in Network Time Protocol (NTP) package of Cisco IOS and Cisco IOS-XE Software could allow an unauthenticated, remote attacker toĬause a limited Denial of Service (DoS) condition on an affected device.
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