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OVAL Definitions
>
OVAL Definition Details
Id
oval:ru.altx-soft.cisco:def:1244
[Eng]
Version
4
Class
vulnerability
ALTXid
65859
Language
Russian
Severity
High
Title
Уязвимость типа "отказ в обслуживании" при помощи манипуляций с состоянием TCP-соединения во множественных продуктах Cisco (CVE-2008-4609)
Description
Множественные продукты Cisco подвержены атаке типа "отказ в обслуживании", позволяющей управлять состоянием соединений в Transmission Control Protocol (TCP). Изменяя состояния TCP-соединений, злоумышленник может заставить TCP-соединение перейти в состояние, при котором оно не будет прерываться, вероятно, никогда. По мере того, как количество активных TCP-соединений растёт, нагрузка на ресурсы атакуемой системы становится слишком большой, что не даёт возможности создать новые TCP-соединения. В некоторых случаях для восстановления нормальной работы системы требуется перезагрузка устройства. Для эксплуатации этой уязвимости злоумышленнику необходимо создать TCP-соединение с тройным заголовком в уязвимой системе.
Family
ios
Platform
Cisco IOS
Reference
CVE: CVE-2008-4609
CVE: CVE-2008-4609
Id:
CVE-2008-4609
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4609
Comment
: The TCP implementation in (1) Linux, (2) platforms based on BSD Unix, (3) Microsoft Windows, (4) Cisco products, and probably other operating systems allows remote attackers to cause a denial of service (connection queue exhaustion) via multiple vectors that manipulate information in the TCP state table, as demonstrated by sockstress.
CVSSv2 Score:
7.1
Access vector:
NETWORK
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:N/AC:M/Au:N/C:N/I:N/A:C
CWE:
16 (Configuration)
References:
[dailydave] 20081002 TCP Resource Exhaustion DoS Attack Speculation (MLIST)
http://www.outpost24.com/news/news-2008-10-02.html (MISC)
20081017 Cisco Response to Outpost24 TCP State Table Manipulation Denial of Service Vulnerabilities (CISCO)
http://blog.robertlee.name/2008/10/conjecture-speculation.html (MISC)
https://www.cert.fi/haavoittuvuudet/2008/tcp-vulnerabilities.html (MISC)
http://insecure.org/stf/tcp-dos-attack-explained.html (MISC)
http://searchsecurity.techtarget.com.au/articles/27154-TCP-is-fundamentally-borked (MISC)
20090908 TCP State Manipulation Denial of Service Vulnerabilities in Multiple Cisco Products (CISCO)
http://www.cpni.gov.uk/Docs/tn-03-09-security-assessment-TCP.pdf (MISC)
TA09-251A (CERT)
HPSBMI02473 (HP)
http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html (CONFIRM)
MDVSA-2013:150 (MANDRIVA)
oval:org.mitre.oval:def:6340 (OVAL)
MS09-048 (MS)
Vendor Advisory: cisco-sa-20090908-tcp24
Vendor Advisory: cisco-sa-20090908-tcp24
Id:
cisco-sa-20090908-tcp24
Reference:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20090908-tcp24
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