CVE-2018-0472

Cisco IOS XE Software and Cisco ASA 5500-X Series Adaptive Security Appliance IPsec Denial of Service Vulnerability

Severity Score

8.6

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

A vulnerability in the IPsec driver code of multiple Cisco IOS XE Software platforms and the Cisco ASA 5500-X Series Adaptive Security Appliance (ASA) could allow an unauthenticated, remote attacker to cause the device to reload. The vulnerability is due to improper processing of malformed IPsec Authentication Header (AH) or Encapsulating Security Payload (ESP) packets. An attacker could exploit this vulnerability by sending malformed IPsec packets to be processed by an affected device. An exploit could allow the attacker to cause a reload of the affected device.

Una vulnerabilidad en el código del controlador IPsec de múltiples plataformas Cisco IOS XE Software y Cisco ASA 5500-X Series Adaptive Security Appliance (ASA) podría permitir que un atacante remoto no autenticado provoque la recarga del dispositivo. La vulnerabilidad se debe al procesamiento incorrecto de una cabecera de autenticación (AH) IPsec mal formada o de paquetes ESP (Encapsulating Security Payload). Un atacante podría explotar esta vulnerabilidad enviando paquetes IPsec mal formados para que los procese el dispositivo afectado. Su explotación podría permitir que el atacante provoque la recarga del dispositivo afectado.

*Credits: N/A

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

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2017-11-27 CVE Reserved
2018-10-05 CVE Published
2024-07-11 EPSS Updated
2024-11-26 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (5)

URL	Tag	Source
http://www.securityfocus.com/bid/105418	Third Party Advisory
http://www.securitytracker.com/id/1041735	Third Party Advisory
http://www.securitytracker.com/id/1041737	Third Party Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-19-094-04	X_refsource_misc

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-ipsec	2019-04-15

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				15.5\(3\)s5.36 Search vendor "Cisco" for product "Ios Xe" and version "15.5\(3\)s5.36"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.8.1 Search vendor "Cisco" for product "Ios Xe" and version "16.8.1"		-		Affected