{"id":"CVE-2001-0405","aliases":["EUVD-2001-0402","GHSA-qphq-fjvj-6855"],"status":"published","title":"ip_conntrack_ftp in the IPTables firewall for Linux 2.4 allows remote attackers to bypass access...","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.","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.10253,"percentile":0.95717,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2001-07-02T04:00:00Z","modified":"2026-06-16T21:54:14Z","exploits":[{"source":"exploitdb","id":"EDB-20765","title":"Linux Kernel 2.4 - IPTables FTP Stateful Inspection Arbitrary Filter Rule Insertion","type":"remote","platform":"linux","date":"2001-04-16","verified":true,"url":"https://www.exploit-db.com/exploits/20765"}],"products":[{"vendor":"linux","product":"linux_kernel"}],"references":[{"url":"http://www.redhat.com/support/errata/RHSA-2001-084.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]},{"url":"http://archives.neohapsis.com/archives/bugtraq/2001-04/0271.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Exploit","Patch","Vendor Advisory"]},{"url":"http://www.redhat.com/support/errata/RHSA-2001-052.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/2602","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit","Patch","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/6390","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.linux-mandrake.com/en/security/2001/MDKSA-2001-071.php3","tags":["vendor-advisory","x_refsource_MANDRAKE","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2001-0405"},{"url":"https://github.com/advisories/GHSA-qphq-fjvj-6855"}],"sources":{"cve":[{"id":"CVE-2001-0405","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.","status":"published","published":"2001-09-18T04:00:00Z","modified":"2024-08-08T04:21:37.802Z","updated_at":"2026-11-02T14:34:43.358691Z"}],"euvd":[{"id":"EUVD-2001-0402","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.","status":"published","published":"2001-09-18T04:00:00Z","modified":"2024-08-08T04:21:37Z","updated_at":"2026-11-03T01:14:52.069936Z"}],"ghsa":[{"id":"GHSA-qphq-fjvj-6855","title":"ip_conntrack_ftp in the IPTables firewall for Linux 2.4 allows remote attackers to bypass access...","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.","status":"published","published":"2022-04-30T18:16:00Z","modified":"2023-01-30T05:04:55Z","updated_at":"2026-11-02T14:47:09.636463Z"}],"nvd":[{"id":"CVE-2001-0405","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.","status":"published","published":"2001-07-02T04:00:00Z","modified":"2026-06-16T21:54:14.747Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:00:40.041412Z"}]}}