Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2001-0183

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
26/03/2001
Last modified:
03/04/2025

Description

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.

Impact

Vector 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
7.50
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
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:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools