CVE-2018-0412

Severity Score

5.3

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the implementation of Extensible Authentication Protocol over LAN (EAPOL) functionality in Cisco Small Business 100 Series Wireless Access Points and Cisco Small Business 300 Series Wireless Access Points could allow an unauthenticated, adjacent attacker to force the downgrade of the encryption algorithm that is used between an authenticator (access point) and a supplicant (Wi-Fi client). The vulnerability is due to the improper processing of certain EAPOL messages that are received during the Wi-Fi handshake process. An attacker could exploit this vulnerability by establishing a man-in-the-middle position between a supplicant and an authenticator and manipulating an EAPOL message exchange to force usage of a WPA-TKIP cipher instead of the more secure AES-CCMP cipher. A successful exploit could allow the attacker to conduct subsequent cryptographic attacks, which could lead to the disclosure of confidential information. Cisco Bug IDs: CSCvj29229.

Una vulnerabilidad en la implementación de la funcionalidad Extensible Authentication Protocol over LAN (EAPOL) en Cisco Small Business 100 Series Wireless Access Points y Cisco Small Business 300 Series Wireless Access Points podría permitir que un atacante adyacente sin autenticar fuerce la degradación del algoritmo de cifrado empleado entre el autenticador (punto de acceso) y un suplicante (cliente Wi-Fi). La vulnerabilidad se debe al procesamiento incorrecto de ciertos mensajes EAPOL que se reciben durante el proceso de handshake Wi-Fi. Un atacante podría explotar esta vulnerabilidad estableciendo una posición Man-in-the-Middle (MitM) entre un suplicante y un autenticador y manipulando un intercambio de mensajes EAPOL para forzar el uso de un cifrado WPA-TKIP en lugar del cifrado AES-CCMP, más seguro. Su explotación con éxito podría permitir que el atacante lleve a cabo ataques criptográficos subsecuentes, lo que podría conducir a la divulgación de información confidencial. Cisco Bug IDs: CSCvj29229.

*Credits: N/A

Attack Vector

Adjacent

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Adjacent

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-11-27 CVE Reserved
2018-08-15 CVE Published
2024-06-24 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-310: Cryptographic Issues

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180815-sb-wap-encrypt	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"	Wap121 Firmware Search vendor "Cisco" for product "Wap121 Firmware"	<= 1.0.6.6 Search vendor "Cisco" for product "Wap121 Firmware" and version " <= 1.0.6.6"	-	Affected	in	Cisco Search vendor "Cisco"	Wap121 Search vendor "Cisco" for product "Wap121"	-	-	Safe
Cisco Search vendor "Cisco"	Wap125 Firmware Search vendor "Cisco" for product "Wap125 Firmware"	<= 1.0.6.6 Search vendor "Cisco" for product "Wap125 Firmware" and version " <= 1.0.6.6"	-	Affected	in	Cisco Search vendor "Cisco"	Wap125 Search vendor "Cisco" for product "Wap125"	-	-	Safe
Cisco Search vendor "Cisco"	Wap131 Firmware Search vendor "Cisco" for product "Wap131 Firmware"	<= 1.0.6.6 Search vendor "Cisco" for product "Wap131 Firmware" and version " <= 1.0.6.6"	-	Affected	in	Cisco Search vendor "Cisco"	Wap131 Search vendor "Cisco" for product "Wap131"	-	-	Safe
Cisco Search vendor "Cisco"	Wap150 Firmware Search vendor "Cisco" for product "Wap150 Firmware"	<= 1.0.6.6 Search vendor "Cisco" for product "Wap150 Firmware" and version " <= 1.0.6.6"	-	Affected	in	Cisco Search vendor "Cisco"	Wap150 Search vendor "Cisco" for product "Wap150"	-	-	Safe
Cisco Search vendor "Cisco"	Wap321 Firmware Search vendor "Cisco" for product "Wap321 Firmware"	<= 1.0.6.6 Search vendor "Cisco" for product "Wap321 Firmware" and version " <= 1.0.6.6"	-	Affected	in	Cisco Search vendor "Cisco"	Wap321 Search vendor "Cisco" for product "Wap321"	-	-	Safe
Cisco Search vendor "Cisco"	Wap351 Firmware Search vendor "Cisco" for product "Wap351 Firmware"	<= 1.0.6.6 Search vendor "Cisco" for product "Wap351 Firmware" and version " <= 1.0.6.6"	-	Affected	in	Cisco Search vendor "Cisco"	Wap351 Search vendor "Cisco" for product "Wap351"	-	-	Safe
Cisco Search vendor "Cisco"	Wap361 Firmware Search vendor "Cisco" for product "Wap361 Firmware"	<= 1.0.6.6 Search vendor "Cisco" for product "Wap361 Firmware" and version " <= 1.0.6.6"	-	Affected	in	Cisco Search vendor "Cisco"	Wap361 Search vendor "Cisco" for product "Wap361"	-	-	Safe
Cisco Search vendor "Cisco"	Wap371 Firmware Search vendor "Cisco" for product "Wap371 Firmware"	<= 1.0.6.6 Search vendor "Cisco" for product "Wap371 Firmware" and version " <= 1.0.6.6"	-	Affected	in	Cisco Search vendor "Cisco"	Wap371 Search vendor "Cisco" for product "Wap371"	-	-	Safe