CVE-2018-0305

Severity Score

8.6

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the affected device. The vulnerability exists because the affected software insufficiently validates Cisco Fabric Services packets. An attacker could exploit this vulnerability by sending a crafted Cisco Fabric Services packet to an affected device. A successful exploit could allow the attacker to force a NULL pointer dereference and cause a DoS condition. This vulnerability affects the following if configured to use Cisco Fabric Services: Firepower 4100 Series Next-Generation Firewalls, Firepower 9300 Security Appliance, MDS 9000 Series Multilayer Switches, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules, UCS 6100 Series Fabric Interconnects, UCS 6200 Series Fabric Interconnects, UCS 6300 Series Fabric Interconnects. Cisco Bug IDs: CSCvd69966, CSCve02435, CSCve04859, CSCve41590, CSCve41593, CSCve41601.

Una vulnerabilidad en el componente Cisco Fabric Services del software FXOS y Cisco NX-OS podría permitir que un atacante remoto no autenticado cree una condición de denegación de servicio (DoS) en un dispositivo afectado. La vulnerabilidad existe debido a que el software afectado no valida suficientemente los paquetes Cisco Fabric Services. Un atacante podría explotar esta vulnerabilidad enviando un paquete Cisco Fabric Services manipulado a un dispositivo afectado. Su explotación con éxito podría permitir que el atacante fuerce una desreferencia de puntero NULL y provoque una denegación de servicio (DoS). Esta vulnerabilidad afecta a los siguientes productos si están configurados para emplear Cisco Fabric Services: Firepower 4100 Series Next-Generation Firewalls, Firepower 9300 Security Appliance, MDS 9000 Series Multilayer Switches, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches en modo NX-OS independiente, los módulos Line Cards y Fabric de Nexus 9500 R-Series, UCS 6100 Series Fabric Interconnects, UCS 6200 Series Fabric Interconnects y UCS 6300 Series Fabric Interconnects. Cisco Bug IDs: CSCvd69966, CSCve02435, CSCve04859, CSCve41590, CSCve41593, CSCve41601.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

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

2017-11-27 CVE Reserved
2018-06-21 CVE Published
2024-04-30 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (2)

URL	Tag	Source
http://www.securitytracker.com/id/1041169	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-fx-os-fabric-dos	2019-10-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"	Nexus 7000 Firmware Search vendor "Cisco" for product "Nexus 7000 Firmware"	8.0\(1\) Search vendor "Cisco" for product "Nexus 7000 Firmware" and version "8.0\(1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 7000 Search vendor "Cisco" for product "Nexus 7000"	-	-	Safe
Cisco Search vendor "Cisco"	Nexus 5000 Firmware Search vendor "Cisco" for product "Nexus 5000 Firmware"	7.0\(0\)hsk\(0.357\) Search vendor "Cisco" for product "Nexus 5000 Firmware" and version "7.0\(0\)hsk\(0.357\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 5000 Search vendor "Cisco" for product "Nexus 5000"	-	-	Safe
Cisco Search vendor "Cisco"	Nexus 5000 Firmware Search vendor "Cisco" for product "Nexus 5000 Firmware"	8.1\(0.2\)s0 Search vendor "Cisco" for product "Nexus 5000 Firmware" and version "8.1\(0.2\)s0"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 5000 Search vendor "Cisco" for product "Nexus 5000"	-	-	Safe
Cisco Search vendor "Cisco"	Nexus 5000 Firmware Search vendor "Cisco" for product "Nexus 5000 Firmware"	8.8\(0.1\) Search vendor "Cisco" for product "Nexus 5000 Firmware" and version "8.8\(0.1\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 5000 Search vendor "Cisco" for product "Nexus 5000"	-	-	Safe
Cisco Search vendor "Cisco"	Firepower 9000 Firmware Search vendor "Cisco" for product "Firepower 9000 Firmware"	r211 Search vendor "Cisco" for product "Firepower 9000 Firmware" and version "r211"	-	Affected	in	Cisco Search vendor "Cisco"	Firepower 9000 Search vendor "Cisco" for product "Firepower 9000"	-	-	Safe
Cisco Search vendor "Cisco"	Firepower 9000 Firmware Search vendor "Cisco" for product "Firepower 9000 Firmware"	r231 Search vendor "Cisco" for product "Firepower 9000 Firmware" and version "r231"	-	Affected	in	Cisco Search vendor "Cisco"	Firepower 9000 Search vendor "Cisco" for product "Firepower 9000"	-	-	Safe
Cisco Search vendor "Cisco"	Nexus 9000 Firmware Search vendor "Cisco" for product "Nexus 9000 Firmware"	8.1\(0\)bd\(0.20\) Search vendor "Cisco" for product "Nexus 9000 Firmware" and version "8.1\(0\)bd\(0.20\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 9000 Search vendor "Cisco" for product "Nexus 9000"	-	-	Safe
Cisco Search vendor "Cisco"	Nexus 9000 Firmware Search vendor "Cisco" for product "Nexus 9000 Firmware"	8.1\(1\)s5 Search vendor "Cisco" for product "Nexus 9000 Firmware" and version "8.1\(1\)s5"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 9000 Search vendor "Cisco" for product "Nexus 9000"	-	-	Safe
Cisco Search vendor "Cisco"	Unified Computing System Firmware Search vendor "Cisco" for product "Unified Computing System Firmware"	3.1\(3a\)a Search vendor "Cisco" for product "Unified Computing System Firmware" and version "3.1\(3a\)a"	-	Affected	in	Cisco Search vendor "Cisco"	Unified Computing System Search vendor "Cisco" for product "Unified Computing System"	-	-	Safe
Cisco Search vendor "Cisco"	Unified Computing System Firmware Search vendor "Cisco" for product "Unified Computing System Firmware"	7.0\(0\)hsk\(0.357\) Search vendor "Cisco" for product "Unified Computing System Firmware" and version "7.0\(0\)hsk\(0.357\)"	-	Affected	in	Cisco Search vendor "Cisco"	Unified Computing System Search vendor "Cisco" for product "Unified Computing System"	-	-	Safe