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Vulnerability Details : CVE-2004-0230

TCP, when using a large Window Size, makes it easier for remote attackers to guess sequence numbers and cause a denial of service (connection loss) to persistent TCP connections by repeatedly injecting a TCP RST packet, especially in protocols that use long-lived connections, such as BGP.
Publish Date : 2004-08-18 Last Update Date : 2013-08-23
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID CWE id is not defined for this vulnerability

- Vendor Statements

The DHS advisory is a good source of background information about the issue: http://www.us-cert.gov/cas/techalerts/TA04-111A.html It is important to note that the issue described is a known function of TCP. In order to perform a connection reset an attacker would need to know the source and destination ip address and ports as well as being able to guess the sequence number within the window. These requirements seriously reduce the ability to trigger a connection reset on normal TCP connections. The DHS advisory explains that BGP routing is a specific case where being able to trigger a reset is easier than expected as the end points can be easily determined and large window sizes are used. BGP routing is also signficantly affected by having it’s connections terminated. The major BGP peers have recently switched to requiring md5 signatures which mitigates against this attack. The following article from Linux Weekly News also puts the flaw into context and shows why it does not pose a significant threat: http://lwn.net/Articles/81560/ Red Hat does not have any plans for action regarding this issue.
Source: Redhat

- Related OVAL Definitions

Title Definition Id Class Family
Cisco Systems Spoofed TCP Reset and SYN Denial of Service Vulnerability oval:org.mitre.oval:def:5711 ios
MS06-064: Vulnerabilities in TCP/IP IPv6 Could Allow Denial of Service (922819) oval:gov.nist.fdcc.patch:def:861 windows
Server 2003 Large Window Size TCP RST Denial of Service oval:org.mitre.oval:def:2689 windows
TCP Connection Reset Vulnerability oval:org.mitre.oval:def:270 windows
Win2k Large Window Size TCP RST Denial of Service oval:org.mitre.oval:def:4791 windows
WinXP Large Window Size TCP RST Denial of Service oval:org.mitre.oval:def:3508 windows
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2004-0230

# Product Type Vendor Product Version Update Edition Language
1 Application TCP TCP Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
TCP TCP 1

- References For CVE-2004-0230

http://secunia.com/advisories/11440
SECUNIA 11440
http://secunia.com/advisories/22341
SECUNIA 22341
http://secunia.com/advisories/11458
SECUNIA 11458
http://www.osvdb.org/4030
OSVDB 4030
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2004-006.txt.asc
NETBSD NetBSD-SA2004-006
ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2005.3/SCOSA-2005.3.txt
SCO SCOSA-2005.3
ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2005.9/SCOSA-2005.9.txt
SCO SCOSA-2005.9
ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.14/SCOSA-2005.14.txt
SCO SCOSA-2005.14
ftp://patches.sgi.com/support/free/security/advisories/20040403-01-A.asc
SGI 20040403-01-A
http://www.cisco.com/warp/public/707/cisco-sa-20040420-tcp-ios.shtml
CISCO 20040420 TCP Vulnerabilities in Multiple IOS-Based Cisco Products
http://marc.theaimsgroup.com/?l=bugtraq&m=108302060014745&w=2
BUGTRAQ 20040425 Perl code exploting TCP not checking RST ACK.
http://www.juniper.net/support/alert.html CONFIRM
http://technet.microsoft.com/en-us/security/bulletin/ms06-064
Microsoft Security Bulletin MS06-064
http://technet.microsoft.com/en-us/security/bulletin/ms05-019
Microsoft Security Bulletin MS05-019
http://www.securityfocus.com/archive/1/archive/1/449179/100/0/threaded
HP HPSBST02161
http://xforce.iss.net/xforce/xfdb/15886
XF tcp-rst-dos(15886)
http://www.vupen.com/english/advisories/2006/3983
VUPEN ADV-2006-3983
http://www.securityfocus.com/bid/10183
BID 10183 Multiple Vendor TCP Sequence Number Approximation Vulnerability Release Date:2014-09-17
http://www.uniras.gov.uk/vuls/2004/236929/index.htm
http://marc.theaimsgroup.com/?l=bugtraq&m=108506952116653&w=2
HP SSRT4696
http://www.kb.cert.org/vuls/id/415294
CERT-VN VU#415294
http://www.us-cert.gov/cas/techalerts/TA04-111A.html
CERT TA04-111A

- Metasploit Modules Related To CVE-2004-0230

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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