CVE-2001-0405

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 10.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2001-07-02 · updated 2026-06-16

Description

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.

Affected products

Linux kernel: 2.4.0, 2.4.0-test1, 2.4.1, 2.4.2, 2.4.3

References

http://archives.neohapsis.com/archives/bugtraq/2001-04/0271.html
http://www.linux-mandrake.com/en/security/2001/MDKSA-2001-071.php3
http://www.redhat.com/support/errata/RHSA-2001-052.html
http://www.redhat.com/support/errata/RHSA-2001-084.html
http://www.securityfocus.com/bid/2602
https://exchange.xforce.ibmcloud.com/vulnerabilities/6390
http://archives.neohapsis.com/archives/bugtraq/2001-04/0271.html
http://www.linux-mandrake.com/en/security/2001/MDKSA-2001-071.php3
http://www.redhat.com/support/errata/RHSA-2001-052.html
http://www.redhat.com/support/errata/RHSA-2001-084.html
http://www.securityfocus.com/bid/2602
https://exchange.xforce.ibmcloud.com/vulnerabilities/6390

Get alerted when CVE-2001-0405 or the next vulnerability affects your stack