CVE-1999-1568 - Vulnerability Details - OpenCVE

Description

Off-by-one error in NcFTPd FTP server before 2.4.1 allows a remote attacker to cause a denial of service (crash) via a long PORT command.

Published: 2004-09-01

Score: 7.5 High

EPSS: 1.7% Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:ncftp:ncftpd_server:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.01741.

Exploitation none

Automatable yes

Technical Impact partial

References

Link	Providers
http://marc.info/?l=bugtraq&m=91981352617720&w=2
http://www.securityfocus.com/archive/1/12699
https://exchange.xforce.ibmcloud.com/vulnerabilities/1833

History

Thu, 16 Jan 2025 18:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Ncftp Ncftpd Server

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2004-09-01T04:00:00.000Z

Updated: 2025-01-16T17:40:42.694Z

Reserved: 2001-08-31T00:00:00.000Z

Link: CVE-1999-1568

Vulnrichment

Updated: 2024-08-01T17:18:07.549Z

NVD

Status : Modified

Published: 1999-01-01T05:00:00.000

Modified: 2026-04-16T00:27:16.627

Link: CVE-1999-1568

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-193

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "1999-02-23T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "Off-by-one error in NcFTPd FTP server before 2.4.1 allows a remote attacker to cause a denial of service (crash) via a long PORT command."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2003-03-21T10:00:00.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"name": "19990223 Comments on NcFTPd \"theoretical root compromise\"", "tags": ["mailing-list", "x_refsource_BUGTRAQ"], "url": "http://www.securityfocus.com/archive/1/12699"}, {"name": "ncftpd-port-bo(1833)", "tags": ["vdb-entry", "x_refsource_XF"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/1833"}, {"name": "19990223 NcFTPd remote buffer overflow", "tags": ["mailing-list", "x_refsource_BUGTRAQ"], "url": "http://marc.info/?l=bugtraq&m=91981352617720&w=2"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-1999-1568", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Off-by-one error in NcFTPd FTP server before 2.4.1 allows a remote attacker to cause a denial of service (crash) via a long PORT command."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "19990223 Comments on NcFTPd \"theoretical root compromise\"", "refsource": "BUGTRAQ", "url": "http://www.securityfocus.com/archive/1/12699"}, {"name": "ncftpd-port-bo(1833)", "refsource": "XF", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/1833"}, {"name": "19990223 NcFTPd remote buffer overflow", "refsource": "BUGTRAQ", "url": "http://marc.info/?l=bugtraq&m=91981352617720&w=2"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-01T17:18:07.549Z"}, "title": "CVE Program Container", "references": [{"name": "19990223 Comments on NcFTPd \"theoretical root compromise\"", "tags": ["mailing-list", "x_refsource_BUGTRAQ", "x_transferred"], "url": "http://www.securityfocus.com/archive/1/12699"}, {"name": "ncftpd-port-bo(1833)", "tags": ["vdb-entry", "x_refsource_XF", "x_transferred"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/1833"}, {"name": "19990223 NcFTPd remote buffer overflow", "tags": ["mailing-list", "x_refsource_BUGTRAQ", "x_transferred"], "url": "http://marc.info/?l=bugtraq&m=91981352617720&w=2"}]}, {"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-193", "lang": "en", "description": "CWE-193 Off-by-one Error"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2025-01-16T17:39:39.255679Z", "id": "CVE-1999-1568", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-01-16T17:40:42.694Z"}}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-1999-1568", "datePublished": "2004-09-01T04:00:00.000Z", "dateReserved": "2001-08-31T00:00:00.000Z", "dateUpdated": "2025-01-16T17:40:42.694Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.securityfocus.com/archive/1/12699", "name": "19990223 Comments on NcFTPd \"theoretical root compromise\"", "tags": ["mailing-list", "x_refsource_BUGTRAQ", "x_transferred"]}, {"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/1833", "name": "ncftpd-port-bo(1833)", "tags": ["vdb-entry", "x_refsource_XF", "x_transferred"]}, {"url": "http://marc.info/?l=bugtraq&m=91981352617720&w=2", "name": "19990223 NcFTPd remote buffer overflow", "tags": ["mailing-list", "x_refsource_BUGTRAQ", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-01T17:18:07.549Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-1999-1568", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-01-16T17:39:39.255679Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-193", "description": "CWE-193 Off-by-one Error"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-01-16T17:40:02.933Z"}}], "cna": {"affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "1999-02-23T00:00:00.000Z", "references": [{"url": "http://www.securityfocus.com/archive/1/12699", "name": "19990223 Comments on NcFTPd \"theoretical root compromise\"", "tags": ["mailing-list", "x_refsource_BUGTRAQ"]}, {"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/1833", "name": "ncftpd-port-bo(1833)", "tags": ["vdb-entry", "x_refsource_XF"]}, {"url": "http://marc.info/?l=bugtraq&m=91981352617720&w=2", "name": "19990223 NcFTPd remote buffer overflow", "tags": ["mailing-list", "x_refsource_BUGTRAQ"]}], "descriptions": [{"lang": "en", "value": "Off-by-one error in NcFTPd FTP server before 2.4.1 allows a remote attacker to cause a denial of service (crash) via a long PORT command."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "text", "description": "n/a"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2003-03-21T10:00:00.000Z"}, "x_legacyV4Record": {"affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"version": {"version_data": [{"version_value": "n/a"}]}, "product_name": "n/a"}]}, "vendor_name": "n/a"}]}}, "data_type": "CVE", "references": {"reference_data": [{"url": "http://www.securityfocus.com/archive/1/12699", "name": "19990223 Comments on NcFTPd \"theoretical root compromise\"", "refsource": "BUGTRAQ"}, {"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/1833", "name": "ncftpd-port-bo(1833)", "refsource": "XF"}, {"url": "http://marc.info/?l=bugtraq&m=91981352617720&w=2", "name": "19990223 NcFTPd remote buffer overflow", "refsource": "BUGTRAQ"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "eng", "value": "Off-by-one error in NcFTPd FTP server before 2.4.1 allows a remote attacker to cause a denial of service (crash) via a long PORT command."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-1999-1568", "STATE": "PUBLIC", "ASSIGNER": "cve@mitre.org"}}}}, "cveMetadata": {"cveId": "CVE-1999-1568", "state": "PUBLISHED", "dateUpdated": "2025-01-16T17:40:42.694Z", "dateReserved": "2001-08-31T00:00:00.000Z", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "datePublished": "2004-09-01T04:00:00.000Z", "assignerShortName": "mitre"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:ncftp:ncftpd_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "3D72A5C7-F7F3-41D4-A909-DBBD0B00C05E", "versionEndExcluding": "2.4.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Off-by-one error in NcFTPd FTP server before 2.4.1 allows a remote attacker to cause a denial of service (crash) via a long PORT command."}], "id": "CVE-1999-1568", "lastModified": "2026-04-16T00:27:16.627", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "1999-01-01T05:00:00.000", "references": [{"source": "cve@mitre.org", "tags": ["Mailing List"], "url": "http://marc.info/?l=bugtraq&m=91981352617720&w=2"}, {"source": "cve@mitre.org", "tags": ["Broken Link", "Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/archive/1/12699"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/1833"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List"], "url": "http://marc.info/?l=bugtraq&m=91981352617720&w=2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link", "Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/archive/1/12699"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/1833"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-193"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-193"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}