CVE-2018-0157

Severity Score

8.6

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the Zone-Based Firewall code of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a device to reload. The vulnerability is due to the way fragmented packets are handled in the firewall code. An attacker could exploit this vulnerability by sending fragmented IP Version 4 or IP Version 6 packets through an affected device. An exploit could allow the attacker to cause the device to crash, resulting in a denial of service (DoS) condition. The following releases of Cisco IOS XE Software are vulnerable: Everest-16.4.1, Everest-16.4.2, Everest-16.5.1, Everest-16.5.1b, Everest-16.6.1, Everest-16.6.1a. Cisco Bug IDs: CSCvf60296.

Una vulnerabilidad en el código de Zone-Based Firewall en Cisco IOS XE Software podría permitir a un atacante remoto no autenticado provocar el reinicio de un dispositivo. Esta vulnerabilidad se debe a la forma en la que se gestionan los paquetes fragmentados en el código del firewall. Un atacante podría explotar esta vulnerabilidad enviando paquetes IP Version 4 o IP Version 6 fragmentados a través de un dispositivo afectado. Si esta situación se explota con éxito, podría permitir que el atacante provoque el cierre inesperado del dispositivo, lo que causa una denegación de servicio (DoS). Las siguientes distribuciones de Cisco IOS XE Software son vulnerables: Everest-16.4.1, Everest-16.4.2, Everest-16.5.1, Everest-16.5.1b, Everest-16.6.1, Everest-16.6.1a. Cisco Bug IDs: CSCvf60296.

*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:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-11-27 CVE Reserved
2018-03-28 CVE Published
2023-09-28 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-19: Data Processing Errors

CAPEC

References (3)

URL	Tag	Source
http://www.securityfocus.com/bid/103561	Third Party Advisory
http://www.securitytracker.com/id/1040593	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-fwip	2019-12-03

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"				16.4.1 Search vendor "Cisco" for product "Ios Xe" and version "16.4.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.4.2 Search vendor "Cisco" for product "Ios Xe" and version "16.4.2"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.5.1 Search vendor "Cisco" for product "Ios Xe" and version "16.5.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.5.1b Search vendor "Cisco" for product "Ios Xe" and version "16.5.1b"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.6.1 Search vendor "Cisco" for product "Ios Xe" and version "16.6.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.6.1a Search vendor "Cisco" for product "Ios Xe" and version "16.6.1a"		-		Affected