CVE-2017-6633

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the TCP throttling process of Cisco UCS C-Series Rack Servers 3.0(0.234) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient rate-limiting protection. An attacker could exploit this vulnerability by sending a high rate of TCP SYN packets to a specific TCP listening port on an affected device. An exploit could allow the attacker to cause a specific TCP listening port to stop accepting new connections, resulting in a DoS condition. Cisco Bug IDs: CSCva65544.

Vulnerabilidad en el proceso de limitación de TCP de Cisco UCS C-Series Rack Servers 3.0 (0.234) podría permitir a un atacante remoto no autenticado causar una condición de denegación de servicio (DoS) en un dispositivo afectado. La vulnerabilidad se debe a la insuficiencia de la limitación de la protección. Un atacante podría explotar esta vulnerabilidad enviando una alta tasa de paquetes TCP SYN a un puerto de escucha TCP específico en un dispositivo afectado. Un exploit podría permitir al atacante hacer que un puerto de escucha específico de TCP dejara de aceptar nuevas conexiones, resultando en una condición DoS. ID de errores de Cisco: CSCva65544.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-03-09 CVE Reserved
2017-05-22 CVE Published
2023-03-07 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (3)

URL	Tag	Source
http://www.securityfocus.com/bid/98525	Third Party Advisory
http://www.securitytracker.com/id/1038513	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170517-ucsc	2017-07-08

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"	Unified Computing System Search vendor "Cisco" for product "Unified Computing System"	3.0\(0.234\) Search vendor "Cisco" for product "Unified Computing System" and version "3.0\(0.234\)"	-	Affected	in	Cisco Search vendor "Cisco"	Ucs C220 M4 Rack Server Search vendor "Cisco" for product "Ucs C220 M4 Rack Server"	-	-	Safe
Cisco Search vendor "Cisco"	Unified Computing System Search vendor "Cisco" for product "Unified Computing System"	3.0\(0.234\) Search vendor "Cisco" for product "Unified Computing System" and version "3.0\(0.234\)"	-	Affected	in	Cisco Search vendor "Cisco"	Ucs C240 M4 Rack Server Search vendor "Cisco" for product "Ucs C240 M4 Rack Server"	-	-	Safe
Cisco Search vendor "Cisco"	Unified Computing System Search vendor "Cisco" for product "Unified Computing System"	3.0\(0.234\) Search vendor "Cisco" for product "Unified Computing System" and version "3.0\(0.234\)"	-	Affected	in	Cisco Search vendor "Cisco"	Ucs C3160 Rack Server Search vendor "Cisco" for product "Ucs C3160 Rack Server"	-	-	Safe
Cisco Search vendor "Cisco"	Unified Computing System Search vendor "Cisco" for product "Unified Computing System"	3.0\(0.234\) Search vendor "Cisco" for product "Unified Computing System" and version "3.0\(0.234\)"	-	Affected	in	Cisco Search vendor "Cisco"	Ucs C460 M4 Rack Server Search vendor "Cisco" for product "Ucs C460 M4 Rack Server"	-	-	Safe