ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts.Referenceshttps://exchange.xforce.ibmcloud.com/vulnerabilities/322https://kc.mcafee.com/corporate/index?page=content&id=SB10053http://descriptions.securescout.com/tc/11010https://exchange.xforce.ibmcloud.com/vulnerabilities/306http://descriptions.securescout.com/tc/11011http://www.osvdb.org/95http://kb.vmware.com/selfservice/microsites/search.do?cmd=displayKC&externalId=1434http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
