CVE-2003-1230

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Summary

CVECVE-2003-1230
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2003-12-31 05:00:00 UTC
Updated2025-04-03 01:03:51 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v2.0 6.4 from [email protected]

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

Problem Types: NVD-CWE-Other | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Freebsd Freebsd 4.5 release All All
Operating System Freebsd Freebsd 4.6 release All All
Operating System Freebsd Freebsd 4.7 release All All
Operating System Freebsd Freebsd 4.7 stable All All
Operating System Freebsd Freebsd 5.0 release All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Secunia - Advisories - FreeBSD SYN cookie brute forcing af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
SecurityFocus HOME Advisories: syncookies af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Patch, Vendor Advisory
FreeBSD syncookies TCP Initial Sequence Number Weakness af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Patch
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com
www.osvdb.org/19785 af854a3a-2127-422b-91ae-364da2661108 www.osvdb.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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