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CVE-2002-0515

nvd nist
Published: Aug 12, 2002Modified: Apr 16, 2026

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5.0
Vector
AV:N/AC:L/Au:N/C:P/I:N/A:N
Exploitability: 10.0 / Impact: 2.9
Source: NVD

Description

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.

Affected (1)

Products: Phildev: Ipfilter
Phildev
1 product
Ipfilter
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Ipfilter
Up to 3.4.25

Related CWEs

CWE-203
Observable Discrepancy
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.

References (6)

Source: cve@mitre.org
Broken LinkVendor Advisory
Source: cve@mitre.org
Broken LinkThird Party AdvisoryVDB EntryVendor Advisory
Source: cve@mitre.org
Broken LinkExploitThird Party AdvisoryVDB EntryVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Broken LinkVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Broken LinkThird Party AdvisoryVDB EntryVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Broken LinkExploitThird Party AdvisoryVDB EntryVendor Advisory

Timeline

No history available yet.