Vulnerability Monitor

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CVE-2003-1230

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.

Security Impact Summary

CVE-2003-1230 is a security vulnerability that . Impacting 1 product from freebsd organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2003, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.

Published

2003-12-31T05:00:00.000

Last Modified

2025-04-03T01:03:51.193

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 6.4 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:N

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

10.0

Impact Score

4.9

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	freebsd	freebsd	4.5	No
Operating System	freebsd	freebsd	4.6	No
Operating System	freebsd	freebsd	4.7	No
Operating System	freebsd	freebsd	4.7	No
Operating System	freebsd	freebsd	5.0	No

References

http://secunia.com/advisories/8142/ Vendor Advisory ([email protected])
http://www.osvdb.org/19785 ([email protected])
http://www.securityfocus.com/advisories/5013 Patch, Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/6920 Patch ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/11397 ([email protected])
http://secunia.com/advisories/8142/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.osvdb.org/19785 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/advisories/5013 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/6920 Patch (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/11397 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For freebsd's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.