CVE-2019-1826

Cisco Aironet Series Access Points Quality of Service Denial of Service Vulnerability

Severity Score

5.7

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the quality of service (QoS) feature of Cisco Aironet Series Access Points (APs) could allow an authenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation on QoS fields within Wi-Fi frames by the affected device. An attacker could exploit this vulnerability by sending malformed Wi-Fi frames to an affected device. A successful exploit could allow the attacker to cause the affected device to crash, resulting in a DoS condition.

Una vulnerabilidad en la característica quality of service (QoS) de Aironet Access Points (APs) de Cisco, podría permitir a un atacante identificado localmente generar una condición de denegación de servicio (DoS) en un dispositivo afectado. La vulnerabilidad se debe a la comprobación de entrada incorrecta en los campos de QoS dentro de las tramas Wi-Fi por el dispositivo afectado. Un atacante podría aprovechar esta vulnerabilidad enviando tramas Wi-Fi malformadas a un dispositivo afectado. Una operación con éxito podría permitir que el atacante hiciera que el dispositivo afectado se bloqueara, resultando en una condición de DoS.

*Credits: N/A

CVSS Scores

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Adjacent

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
2023-03-08 EPSS Updated
2024-09-17 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/107988	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-aap-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"	Aironet Access Point Firmware Search vendor "Cisco" for product "Aironet Access Point Firmware"	-	-	Affected	in	Cisco Search vendor "Cisco"	Aironet 1562d Search vendor "Cisco" for product "Aironet 1562d"	-	-	Safe
Cisco Search vendor "Cisco"	Aironet Access Point Firmware Search vendor "Cisco" for product "Aironet Access Point Firmware"	-	-	Affected	in	Cisco Search vendor "Cisco"	Aironet 1562e Search vendor "Cisco" for product "Aironet 1562e"	-	-	Safe
Cisco Search vendor "Cisco"	Aironet Access Point Firmware Search vendor "Cisco" for product "Aironet Access Point Firmware"	-	-	Affected	in	Cisco Search vendor "Cisco"	Aironet 1562i Search vendor "Cisco" for product "Aironet 1562i"	-	-	Safe
Cisco Search vendor "Cisco"	Aironet Access Point Firmware Search vendor "Cisco" for product "Aironet Access Point Firmware"	-	-	Affected	in	Cisco Search vendor "Cisco"	Aironet 2800e Search vendor "Cisco" for product "Aironet 2800e"	-	-	Safe
Cisco Search vendor "Cisco"	Aironet Access Point Firmware Search vendor "Cisco" for product "Aironet Access Point Firmware"	-	-	Affected	in	Cisco Search vendor "Cisco"	Aironet 2800i Search vendor "Cisco" for product "Aironet 2800i"	-	-	Safe
Cisco Search vendor "Cisco"	Aironet Access Point Firmware Search vendor "Cisco" for product "Aironet Access Point Firmware"	-	-	Affected	in	Cisco Search vendor "Cisco"	Aironet 3800e Search vendor "Cisco" for product "Aironet 3800e"	-	-	Safe
Cisco Search vendor "Cisco"	Aironet Access Point Firmware Search vendor "Cisco" for product "Aironet Access Point Firmware"	-	-	Affected	in	Cisco Search vendor "Cisco"	Aironet 3800i Search vendor "Cisco" for product "Aironet 3800i"	-	-	Safe
Cisco Search vendor "Cisco"	Aironet Access Point Firmware Search vendor "Cisco" for product "Aironet Access Point Firmware"	-	-	Affected	in	Cisco Search vendor "Cisco"	Aironet 3800p Search vendor "Cisco" for product "Aironet 3800p"	-	-	Safe
Cisco Search vendor "Cisco"	Aironet Access Point Firmware Search vendor "Cisco" for product "Aironet Access Point Firmware"	-	-	Affected	in	Cisco Search vendor "Cisco"	Aironet 4800 Search vendor "Cisco" for product "Aironet 4800"	-	-	Safe
Cisco Search vendor "Cisco"	Aironet Access Point Firmware Search vendor "Cisco" for product "Aironet Access Point Firmware"	8.5\(131.3\) Search vendor "Cisco" for product "Aironet Access Point Firmware" and version "8.5\(131.3\)"	-	Affected	in	Cisco Search vendor "Cisco"	Aironet 1850e Search vendor "Cisco" for product "Aironet 1850e"	-	-	Safe
Cisco Search vendor "Cisco"	Aironet Access Point Firmware Search vendor "Cisco" for product "Aironet Access Point Firmware"	8.5\(131.3\) Search vendor "Cisco" for product "Aironet Access Point Firmware" and version "8.5\(131.3\)"	-	Affected	in	Cisco Search vendor "Cisco"	Aironet 1850i Search vendor "Cisco" for product "Aironet 1850i"	-	-	Safe