CVE:CVE-1999-1420
CNNVD:CNNVD-199807-025
NBase 交换机 NH2012、NH2012R、NH2015以及NH2048有一个不可关闭的非法途径密码，远程攻击者借此修改交换机的配置。
solution:Upgrade n-base nh2012 to a higher version than 2.53,and avoid the version 2.53; Upgrade n-base nh2012r to a higher version than 2.53,and avoid the version 2.53; Upgrade n-base nh2015 to a higher version than 2.51,and avoid the version 2.51; Upgrade n-base nh2048 to a higher version than 1.33,and avoid the version 1.33; Upgrade n-base nh3012 to a higher version than 2.1,and avoid the version 2.1