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CVE-2001-0405

HighPublished

ip_conntrack_ftp in the IPTables firewall for Linux 2.4 allows remote attackers to bypass access restrictions for an FTP server via a PORT command that...

Published: Sep 18, 2001
Updated: Aug 8, 2024
Assigning CNA: mitre
Evidence observed: Apr 16, 2001

Primary CVSS

7.5/ 10High

nvd · CVSS 2.0

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

EPSS probability estimate

10.3%

Moderate · next 30 days

Percentile: 95.5%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

ip_conntrack_ftp in the IPTables firewall for Linux 2.4 allows remote attackers to bypass access restrictions for an FTP server via a PORT command that lists an arbitrary IP address and port number, which is added to the RELATED table and allowed by the firewall.

Sources

Linux Kernel 2.4 - IPTables FTP Stateful Inspection Arbitrary Filter Rule InsertionExploit
Cristiano Lincoln Mattos · linux · Apr 16, 2001

Responsible use

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