CVE:CVE-2009-4025
CNNVD:CNNVD-200911-291
PEAR Net_Traceroute package 0.21.2之前版本的Traceroute.php中的traceroute函数存在参数注入漏洞。远程攻击者可以借助主机参数，执行任意的外壳指令。
solution:Upgrade pear pear to a higher version than 0.21.1,0.11,0.20,0.21,and avoid the version (,0.21.1],0.11,0.20,0.21