IPFilter 3.4.25 and Earlier TTL Filtering Vulnerability

CVE-2002-0515 · MEDIUM Severity

AV:N/AC:L/AU:N/C:P/I:N/A:N

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.

Learn more about our Web Application Penetration Testing UK.