CVE-2002-0515
IPFilter < 3.4.25 - Filtered Port Detection via TTL Discrepancy
Title source: llmDescription
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.
References (3)
Core 3
Core References
Broken Link, Third Party Advisory, VDB Entry, Vendor Advisory mailing-list
x_refsource_bugtraq
http://www.securityfocus.com/archive/1/265188
Broken Link, Exploit, Third Party Advisory, VDB Entry, Vendor Advisory vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/4403
Broken Link, Vendor Advisory vdb-entry
x_refsource_xf
http://www.iss.net/security_center/static/8738.php
Scores
EPSS
0.0220
EPSS Percentile
80.2%
Details
CWE
CWE-203
Status
published
Products (1)
phildev/ipfilter
< 3.4.25
Published
Aug 12, 2002
Tracked Since
Feb 18, 2026