// For flags

CVE-2018-0443

Cisco Wireless LAN Controller Software Control and Provisioning of Wireless Access Points Protocol Denial of Service Vulnerability

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol component of Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to improper input validation on fields within CAPWAP Discovery Request packets by the affected device. An attacker could exploit this vulnerability by sending malicious CAPWAP Discovery Request packets to the Cisco WLC Software. A successful exploit could allow the attacker to cause the Cisco WLC Software to disconnect associated access points (APs). While the APs disconnect and reconnect, service will be unavailable for a brief period of time, resulting in a DoS condition.

Una vulnerabilidad en el componente del protocolo CAPWAP (Control and Provisioning of Wireless Access Points) de Cisco Wireless LAN Controller (WLC) Software podría permitir que un atacante remoto no autenticado provoque una denegación de servicio (DoS). Esta vulnerabilidad se debe a una validación de entradas incorrecta en los campos de los paquetes CAPWAP Discovery Request por parte del dispositivo afectado. Un atacante podría explotar esta vulnerabilidad enviando paquetes CAPWAP Discovery Request maliciosos a Cisco WLC Software. Su explotación con éxito podría permitir que el atacante provoque que Cisco WLC Software desconecte los puntos de acceso (AP) asociados. Mientras los AP se desconectan y reconectan, el servicio dejará de estar disponible por un breve periodo de tiempo, lo que resulta en una denegación de servicio (DoS).

*Credits: N/A
CVSS Scores
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
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
  • 2018-10-17 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
  • CWE-399: Resource Management Errors
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"
 Wireless Lan Controller Software
Search vendor "Cisco" for product "Wireless Lan Controller Software"
 8.2\(151.0\)
Search vendor "Cisco" for product "Wireless Lan Controller Software" and version "8.2\(151.0\)"
-
Affected