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

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CVE-2003-1230

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
31/12/2003
Last modified:
11/07/2017

Description

The implementation of SYN cookies (syncookies) in FreeBSD 4.5 through 5.0-RELEASE-p3 uses only 32-bit internal keys when generating syncookies, which makes it easier for remote attackers to conduct brute force ISN guessing attacks and spoof legitimate traffic.

Impact

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

Base Score: 6.40 MEDIUM
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:N

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

Base Score 2.0
6.40
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:freebsd:freebsd:4.5:release:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:4.6:release:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:4.7:release:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:4.7:stable:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:5.0:release:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools