// For flags

CVE-2018-0456

Cisco NX-OS Software Authenticated Simple Network Management Protocol Denial of Service Vulnerability

Severity Score

7.7
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability in the Simple Network Management Protocol (SNMP) input packet processor of Cisco NX-OS Software could allow an authenticated, remote attacker to cause the SNMP application of an affected device to restart unexpectedly. The vulnerability is due to improper validation of SNMP protocol data units (PDUs) in SNMP packets. An attacker could exploit this vulnerability by sending a crafted SNMP packet to an affected device. A successful exploit could allow the attacker to cause the SNMP application to restart multiple times, leading to a system-level restart and a denial of service (DoS) condition.

Una vulnerabilidad en el procesador de paquetes entrantes SNMP (Simple Network Management Protocol) del software Cisco NX-OS podría permitir que la aplicación SNMP se reinicie inesperadamente en un dispositivo afectado. La vulnerabilidad se debe a la validación incorrecta de unidades de datos del protocolo SNMP (PDU) en los paquetes SNMP. Un atacante podría explotar esta vulnerabilidad enviando un paquete SNMP manipulado a un dispositivo afectado. Su explotación con éxito podría permitir que el atacante provoque que la aplicación SNMP se reinicie varias veces, lo que conduce a un reinicio a nivel de sistema y a una condición de denegación de servicio (DoS).

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2017-11-27 CVE Reserved
  • 2018-10-17 CVE Published
  • 2024-08-01 EPSS Updated
  • 2024-09-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
 Nx-os
Search vendor "Cisco" for product "Nx-os"
 9.2\(0.43\)
Search vendor "Cisco" for product "Nx-os" and version "9.2\(0.43\)"
-
Affected