CVE-2018-0441

Cisco IOS Access Points Software 802.11r Fast Transition Denial of Service Vulnerability

Severity Score

7.4

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the 802.11r Fast Transition feature set of Cisco IOS Access Points (APs) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a corruption of certain timer mechanisms triggered by specific roaming events. This corruption will eventually cause a timer crash. An attacker could exploit this vulnerability by sending malicious reassociation events multiple times to the same AP in a short period of time, causing a DoS condition on the affected AP.

Una vulnerabilidad en el conjunto de características 802.11r Fast Transition en Cisco IOS Access Points (APs) Software podría permitir que un atacante adyacente sin autenticar provoque una denegación de servicio (DoS) en un dispositivo afectado. La vulnerabilidad se debe a la corrupción de ciertos mecanismos de temporización desencadenados por eventos concretos de roaming. Esta corrupción acabará provocando un cierre inesperado del temporizador. Un atacante podría explotar esta vulnerabilidad enviando eventos maliciosos de reasociación múltiples veces al mismo AP en un corto espacio de tiempo, lo que provoca una condición de denegación de servicio (DoS) en el AP afectado.

*Credits: N/A

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Adjacent

Attack Complexity

Low

Authentication

None

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
2024-06-05 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption

CAPEC

References (3)

URL	Tag	Source
http://www.securityfocus.com/bid/105680	Third Party Advisory
http://www.securitytracker.com/id/1041918	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-ap-ft-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"		Access Points Search vendor "Cisco" for product "Access Points"				8.0\(140.0\) Search vendor "Cisco" for product "Access Points" and version "8.0\(140.0\)"		-		Affected
Cisco Search vendor "Cisco"		Access Points Search vendor "Cisco" for product "Access Points"				8.2\(141.0\) Search vendor "Cisco" for product "Access Points" and version "8.2\(141.0\)"		-		Affected
Cisco Search vendor "Cisco"		Access Points Search vendor "Cisco" for product "Access Points"				8.2\(151.0\) Search vendor "Cisco" for product "Access Points" and version "8.2\(151.0\)"		-		Affected
Cisco Search vendor "Cisco"		Access Points Search vendor "Cisco" for product "Access Points"				8.3\(102.0\) Search vendor "Cisco" for product "Access Points" and version "8.3\(102.0\)"		-		Affected
Cisco Search vendor "Cisco"		Access Points Search vendor "Cisco" for product "Access Points"				8.3\(112.0\) Search vendor "Cisco" for product "Access Points" and version "8.3\(112.0\)"		-		Affected
Cisco Search vendor "Cisco"		Access Points Search vendor "Cisco" for product "Access Points"				8.3\(114.74\) Search vendor "Cisco" for product "Access Points" and version "8.3\(114.74\)"		-		Affected
Cisco Search vendor "Cisco"		Access Points Search vendor "Cisco" for product "Access Points"				15.3\(3\)jd Search vendor "Cisco" for product "Access Points" and version "15.3\(3\)jd"		-		Affected
Cisco Search vendor "Cisco"		Access Points Search vendor "Cisco" for product "Access Points"				< 8.3.140.0 Search vendor "Cisco" for product "Access Points" and version " < 8.3.140.0"		-		Affected
Cisco Search vendor "Cisco"		Access Points Search vendor "Cisco" for product "Access Points"				>= 8.4 < 8.5.110.0 Search vendor "Cisco" for product "Access Points" and version " >= 8.4 < 8.5.110.0"		-		Affected