CVE-2002-0515

IPFilter 3.4.25 and earlier sets a different TTL when a port is being filtered than when it is not being filtered, which allows remote attackers to identify filtered ports by comparing TTLs.

IPFilter 3.4.25 and earlier sets a different TTL when a port is being filtered than when it is not being filtered, which allows remote attackers to identify filtered ports by comparing TTLs.

IPFilter 3.4.25 y anteriores establece un TTL distinto cuando un puerto está siendo filtrado a cuando no lo está, lo que permite a atacantes remotos identificar puertos filtrados comparando los TTL.