CVE-2001-0183 - Vulnerability Details - OpenCVE

ipfw and ip6fw in FreeBSD 4.2 and earlier allows remote attackers to bypass access restrictions by setting the ECE flag in a TCP packet, which makes the packet appear to be part of an established connection.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.08911.

Key SSVC decision points have not yet been added.

Vendors	Products
Freebsd	Freebsd

Configuration 1 [-]

OR	cpe:2.3:o:freebsd:freebsd:3.0:::::::*
	cpe:2.3:o:freebsd:freebsd:3.1:::::::*
	cpe:2.3:o:freebsd:freebsd:3.3:::::::*
	cpe:2.3:o:freebsd:freebsd:3.4:::::::*
	cpe:2.3:o:freebsd:freebsd:3.5:::::::*
	cpe:2.3:o:freebsd:freebsd:3.5.1:::::::*
	cpe:2.3:o:freebsd:freebsd:4.0:::::::*
	cpe:2.3:o:freebsd:freebsd:4.0:alpha::::::
	cpe:2.3:o:freebsd:freebsd:4.1:::::::*
	cpe:2.3:o:freebsd:freebsd:4.1.1:::::::*
	cpe:2.3:o:freebsd:freebsd:4.2:::::::*

No data.

No data.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:08.ipfw.asc
http://www.ciac.org/ciac/bulletins/l-029.shtml
http://www.osvdb.org/1743
http://www.security-express.com/archives/bugtraq/2001-01/0424.html
http://www.securityfocus.com/bid/2293
https://exchange.xforce.ibmcloud.com/vulnerabilities/5998

History

No history.

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2001-05-07T04:00:00

Updated: 2024-08-08T04:14:06.663Z

Reserved: 2001-03-08T00:00:00

Link: CVE-2001-0183

Vulnrichment

No data.

NVD

Status : Deferred

Published: 2001-03-26T05:00:00.000

Modified: 2025-04-03T01:03:51.193

Link: CVE-2001-0183

Redhat

No data.

OpenCVE Enrichment

No data.

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2001-01-23T00:00:00", "descriptions": [{"lang": "en", "value": "ipfw and ip6fw in FreeBSD 4.2 and earlier allows remote attackers to bypass access restrictions by setting the ECE flag in a TCP packet, which makes the packet appear to be part of an established connection."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2004-09-02T09:00:00", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"name": "2293", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/2293"}, {"name": "L-029", "tags": ["third-party-advisory", "government-resource", "x_refsource_CIAC"], "url": "http://www.ciac.org/ciac/bulletins/l-029.shtml"}, {"name": "20010125 ecepass - proof of concept code for FreeBSD ipfw bypass", "tags": ["mailing-list", "x_refsource_BUGTRAQ"], "url": "http://www.security-express.com/archives/bugtraq/2001-01/0424.html"}, {"name": "ipfw-bypass-firewall(5998)", "tags": ["vdb-entry", "x_refsource_XF"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/5998"}, {"name": "FreeBSD-SA-01:08", "tags": ["vendor-advisory", "x_refsource_FREEBSD"], "url": "ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:08.ipfw.asc"}, {"name": "1743", "tags": ["vdb-entry", "x_refsource_OSVDB"], "url": "http://www.osvdb.org/1743"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2001-0183", "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": "ipfw and ip6fw in FreeBSD 4.2 and earlier allows remote attackers to bypass access restrictions by setting the ECE flag in a TCP packet, which makes the packet appear to be part of an established connection."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "2293", "refsource": "BID", "url": "http://www.securityfocus.com/bid/2293"}, {"name": "L-029", "refsource": "CIAC", "url": "http://www.ciac.org/ciac/bulletins/l-029.shtml"}, {"name": "20010125 ecepass - proof of concept code for FreeBSD ipfw bypass", "refsource": "BUGTRAQ", "url": "http://www.security-express.com/archives/bugtraq/2001-01/0424.html"}, {"name": "ipfw-bypass-firewall(5998)", "refsource": "XF", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/5998"}, {"name": "FreeBSD-SA-01:08", "refsource": "FREEBSD", "url": "ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:08.ipfw.asc"}, {"name": "1743", "refsource": "OSVDB", "url": "http://www.osvdb.org/1743"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-08T04:14:06.663Z"}, "title": "CVE Program Container", "references": [{"name": "2293", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/2293"}, {"name": "L-029", "tags": ["third-party-advisory", "government-resource", "x_refsource_CIAC", "x_transferred"], "url": "http://www.ciac.org/ciac/bulletins/l-029.shtml"}, {"name": "20010125 ecepass - proof of concept code for FreeBSD ipfw bypass", "tags": ["mailing-list", "x_refsource_BUGTRAQ", "x_transferred"], "url": "http://www.security-express.com/archives/bugtraq/2001-01/0424.html"}, {"name": "ipfw-bypass-firewall(5998)", "tags": ["vdb-entry", "x_refsource_XF", "x_transferred"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/5998"}, {"name": "FreeBSD-SA-01:08", "tags": ["vendor-advisory", "x_refsource_FREEBSD", "x_transferred"], "url": "ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:08.ipfw.asc"}, {"name": "1743", "tags": ["vdb-entry", "x_refsource_OSVDB", "x_transferred"], "url": "http://www.osvdb.org/1743"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2001-0183", "datePublished": "2001-05-07T04:00:00", "dateReserved": "2001-03-08T00:00:00", "dateUpdated": "2024-08-08T04:14:06.663Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:freebsd:freebsd:3.0:*:*:*:*:*:*:*", "matchCriteriaId": "EE38C50A-81FE-412E-9717-3672FAE6A6F4", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:3.1:*:*:*:*:*:*:*", "matchCriteriaId": "263F3734-7076-4EA8-B4C0-F37CFC4E979E", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:3.3:*:*:*:*:*:*:*", "matchCriteriaId": "C3518628-08E5-4AD7-AAF6-A4E38F1CDE2C", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:3.4:*:*:*:*:*:*:*", "matchCriteriaId": "B982342C-1981-4C55-8044-AFE4D87623DF", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:3.5:*:*:*:*:*:*:*", "matchCriteriaId": "47E02BE6-4800-4940-B269-385B66AC5077", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:3.5.1:*:*:*:*:*:*:*", "matchCriteriaId": "7C283AD7-1C58-4CE8-A6CD-502FFE0B18BB", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:4.0:*:*:*:*:*:*:*", "matchCriteriaId": "D0A585A1-FF82-418F-90F8-072458DB7816", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:4.0:alpha:*:*:*:*:*:*", "matchCriteriaId": "E3F7EB61-55A5-4776-B0E7-3508920A6CEA", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:4.1:*:*:*:*:*:*:*", "matchCriteriaId": "AE31DFF8-06AB-489D-A0C5-509C090283B5", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:4.1.1:*:*:*:*:*:*:*", "matchCriteriaId": "3BE1E3D8-2BB1-4FFA-9BC9-7AF347D26190", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:4.2:*:*:*:*:*:*:*", "matchCriteriaId": "DF49BF03-C25E-4737-84D5-892895C86C58", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "ipfw and ip6fw in FreeBSD 4.2 and earlier allows remote attackers to bypass access restrictions by setting the ECE flag in a TCP packet, which makes the packet appear to be part of an established connection."}], "id": "CVE-2001-0183", "lastModified": "2025-04-03T01:03:51.193", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": true, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2001-03-26T05:00:00.000", "references": [{"source": "cve@mitre.org", "tags": ["Patch", "Vendor Advisory"], "url": "ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:08.ipfw.asc"}, {"source": "cve@mitre.org", "url": "http://www.ciac.org/ciac/bulletins/l-029.shtml"}, {"source": "cve@mitre.org", "url": "http://www.osvdb.org/1743"}, {"source": "cve@mitre.org", "url": "http://www.security-express.com/archives/bugtraq/2001-01/0424.html"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Patch", "Vendor Advisory"], "url": "http://www.securityfocus.com/bid/2293"}, {"source": "cve@mitre.org", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/5998"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:08.ipfw.asc"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.ciac.org/ciac/bulletins/l-029.shtml"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.osvdb.org/1743"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.security-express.com/archives/bugtraq/2001-01/0424.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Patch", "Vendor Advisory"], "url": "http://www.securityfocus.com/bid/2293"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/5998"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}