CVE-2017-3864

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 DHCP client implementation of Cisco IOS (12.2, 12.4, and 15.0 through 15.6) and Cisco IOS XE (3.3 through 3.7) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability occurs during the parsing of a crafted DHCP packet. An attacker could exploit this vulnerability by sending crafted DHCP packets to an affected device that is configured as a DHCP client. A successful exploit could allow the attacker to cause a reload of an affected device, resulting in a DoS condition. This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS or IOS XE Software and using a specific DHCP client configuration. Cisco Bug IDs: CSCuu43892.

Una vulnerabilidad en la implementación del cliente DHCP de Cisco IOS (12.2, 12.4 y 15.0 hasta la versión 15.6) y Cisco IOS XE (3.3 hasta la versión 3.7) podría permitir a un atacante remoto no autenticado provocar una denegación de servicio (DoS). La vulnerabilidad se produce durante el análisis de un paquete DHCP elaborado. Un atacante podría explotar esta vulnerabilidad mediante el envío de paquetes DHCP creados a un dispositivo afectado configurado como un cliente DHCP. Una explotación exitosa podría permitir al atacante hacer que el dispositivo se volviera a cargar, lo que daría lugar a una condición DoS. Esta vulnerabilidad afecta a los dispositivos Cisco que ejecutan una versión vulnerable del software Cisco IOS o IOS XE y que utilizan una configuración de cliente DHCP específica. ID de bugs de Cisco: CSCuu43892.

*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

2016-12-21 CVE Reserved
2017-03-22 CVE Published
2023-03-07 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-399: Resource Management Errors

CAPEC

References (3)

URL	Tag	Source
http://www.securityfocus.com/bid/97012	Third Party Advisory
http://www.securitytracker.com/id/1038103	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170322-dhcpc	2020-09-04

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 Search vendor "Cisco" for product "Ios"				>= 15.0 <= 15.6 Search vendor "Cisco" for product "Ios" and version " >= 15.0 <= 15.6"		-		Affected
Cisco Search vendor "Cisco"		Ios Search vendor "Cisco" for product "Ios"				12.2 Search vendor "Cisco" for product "Ios" and version "12.2"		-		Affected
Cisco Search vendor "Cisco"		Ios Search vendor "Cisco" for product "Ios"				12.4 Search vendor "Cisco" for product "Ios" and version "12.4"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				>= 3.3 <= 3.7 Search vendor "Cisco" for product "Ios Xe" and version " >= 3.3 <= 3.7"		-		Affected