CVE-2019-1830

Cisco Wireless LAN Controller Locally Significant Certificate Denial of Service Vulnerability

Severity Score

4.9

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in Locally Significant Certificate (LSC) management for the Cisco Wireless LAN Controller (WLC) could allow an authenticated, remote attacker to cause the device to unexpectedly restart, which causes a denial of service (DoS) condition. The attacker would need to have valid administrator credentials. The vulnerability is due to incorrect input validation of the HTTP URL used to establish a connection to the LSC Certificate Authority (CA). An attacker could exploit this vulnerability by authenticating to the targeted device and configuring a LSC certificate. An exploit could allow the attacker to cause a DoS condition due to an unexpected restart of the device.

Una vulnerabilidad en la administración de Locally Significant Certificate (LSC) para el controlador de LAN inalámbrica (WLC) de Cisco podría permitir que un atacante remoto identificado que el dispositivo se reinicie inesperadamente, lo que provoca una condición de Denegación de Servicio (DoS). El atacante necesitaría tener credenciales de administrador válidas. La vulnerabilidad se debe a una comprobación de entrada incorrecta de la URL HTTP utilizada para establecer una conexión con la Certificate Authority (CA) de LSC. Un atacante podría explotar esta vulnerabilidad autenticándose en el dispositivo de destino y configurando un certificado LSC. Una vulnerabilidad podría permitir al atacante generar una condición DoS debido a un reinicio inesperado del dispositivo.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

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

2018-12-06 CVE Reserved
2019-04-18 CVE Published
2023-03-07 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (2)

URL	Tag	Source
http://www.securityfocus.com/bid/108028	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-wlc-cert-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"		Wireless Lan Controller Software Search vendor "Cisco" for product "Wireless Lan Controller Software"				< 8.3.150.0 Search vendor "Cisco" for product "Wireless Lan Controller Software" and version " < 8.3.150.0"		-		Affected
Cisco Search vendor "Cisco"		Wireless Lan Controller Software Search vendor "Cisco" for product "Wireless Lan Controller Software"				>= 8.5.131.0 < 8.5.140.0 Search vendor "Cisco" for product "Wireless Lan Controller Software" and version " >= 8.5.131.0 < 8.5.140.0"		-		Affected
Cisco Search vendor "Cisco"		Wireless Lan Controller Software Search vendor "Cisco" for product "Wireless Lan Controller Software"				>= 8.6.101.0 < 8.8.100.0 Search vendor "Cisco" for product "Wireless Lan Controller Software" and version " >= 8.6.101.0 < 8.8.100.0"		-		Affected