CVE:CVE-2001-1474
CNNVD:CNNVD-200101-120
SSH 2.0之前版本在连接到本地主机时使主机密钥检测无效，远程攻击者可以通过毒害客户端的DNS缓存来默默重定向到本地主机的连接。
solution:Upgrade ssh ssh to a higher version than 1.2.24,1.2.25,1.2.26,1.2.27,1.2.28,1.2.29,1.2.30,1.2.31,and avoid the version 1.2.24,1.2.25,1.2.26,1.2.27,1.2.28,1.2.29,1.2.30,1.2.31