CVE-2018-0314

Severity Score

9.8

*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 (CFS) component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. The vulnerability exists because the affected software insufficiently validates Cisco Fabric Services packet headers when the software processes packet data. An attacker could exploit this vulnerability by sending a maliciously crafted Cisco Fabric Services packet to an affected device. A successful exploit could allow the attacker to cause a buffer overflow condition on the device, which could allow the attacker to execute arbitrary code on the device. 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: CSCvd69943, CSCve02429, CSCve02433, CSCve02435, CSCve02445, CSCve04859.

Una vulnerabilidad en el componente Cisco Fabric Services (CFS) del software Cisco FXOS y Cisco NX-OS podría permitir que un atacante remoto no autenticado ejecute código arbitrario en un dispositivo afectado. La vulnerabilidad existe debido a que el software afectado no valida suficientemente las cabeceras de paquetes Cisco Fabric Services cuando el software procesa datos del paquete. Un atacante podría explotar esta vulnerabilidad enviando un paquete Cisco Fabric Services maliciosamente manipulado a un dispositivo afectado. Su explotación con éxito podría permitir que el atacante provoque un desbordamiento de búfer en el dispositivo que le permitiría ejecutar código arbitrario. 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, Nexus 9500 R-Series Line Cards and Fabric Modules, UCS 6100 Series Fabric Interconnects, UCS 6200 Series Fabric Interconnects y UCS 6300 Series Fabric Interconnects. Cisco Bug IDs: CSCvd69943, CSCve02429, CSCve02433, CSCve02435, CSCve02445, CSCve04859.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-11-27 CVE Reserved
2018-06-20 CVE Published
2024-05-30 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (3)

URL	Tag	Source
http://www.securityfocus.com/bid/104516	Third Party Advisory
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-execution	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"	7.3\(2\)d1\(0.49\) Search vendor "Cisco" for product "Nexus 7000 Firmware" and version "7.3\(2\)d1\(0.49\)"	-	Affected	in	Cisco Search vendor "Cisco"	Nexus 7000 Search vendor "Cisco" for product "Nexus 7000"	-	-	Safe
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 7000 Firmware Search vendor "Cisco" for product "Nexus 7000 Firmware"	8.1\(0.112\)s0 Search vendor "Cisco" for product "Nexus 7000 Firmware" and version "8.1\(0.112\)s0"	-	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"	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