CVE-2018-0470

Cisco IOS XE Software HTTP 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

*SSVC

Descriptions

A vulnerability in the web framework of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a buffer overflow condition on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to the affected software improperly parsing malformed HTTP packets that are destined to a device. An attacker could exploit this vulnerability by sending a malformed HTTP packet to an affected device for processing. A successful exploit could allow the attacker to cause a buffer overflow condition on the affected device, resulting in a DoS condition.

Una vulnerabilidad en el framework web de Cisco IOS XE Software podría permitir que un atacante remoto sin autenticar provoque un desbordamiento de búfer en un dispositivo afectado, lo que resulta en una denegación de servicio (DoS). La vulnerabilidad se debe a que el software afectado analiza incorrectamente los paquetes HTTP mal formados que se envían al dispositivo afectado. Un atacante podría explotar esta vulnerabilidad enviando un paquete HTTP mal formado a un dispositivo afectado para su procesamiento. Su explotación con éxito podría permitir que el atacante provoque un desbordamiento de búfer en el dispositivo afectado y provoque una denegación de servicio (DoS).

*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
2018-10-05 CVE Published
2024-07-11 EPSS Updated
2024-09-17 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-399: Resource Management Errors

CAPEC

References (4)

URL	Tag	Source
http://www.securityfocus.com/bid/105397	Third Party Advisory
http://www.securitytracker.com/id/1041737	Third Party Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-19-094-03	X_refsource_misc

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-webdos	2020-09-29

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"				16.2.0 Search vendor "Cisco" for product "Ios Xe" and version "16.2.0"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.3\(1\) Search vendor "Cisco" for product "Ios Xe" and version "16.3\(1\)"		-		Affected