CVE-2018-0151

Cisco IOS Software and Cisco IOS XE Software Quality of Service Remote Code Execution Vulnerability

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

Yes

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the quality of service (QoS) subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges. The vulnerability is due to incorrect bounds checking of certain values in packets that are destined for UDP port 18999 of an affected device. An attacker could exploit this vulnerability by sending malicious packets to an affected device. When the packets are processed, an exploitable buffer overflow condition may occur. A successful exploit could allow the attacker to execute arbitrary code on the affected device with elevated privileges. The attacker could also leverage this vulnerability to cause the device to reload, causing a temporary DoS condition while the device is reloading. The malicious packets must be destined to and processed by an affected device. Traffic transiting a device will not trigger the vulnerability. Cisco Bug IDs: CSCvf73881.

Una vulnerabilidad en el subsistema "quality of service" (QoS) de Cisco IOS Software y Cisco IOS XE Software podría permitir que un atacante remoto no autenticado provoque una denegación de servicio (DoS) o ejecute código arbitrario con privilegios elevados. Esta vulnerabilidad se debe a una verificación incorrecta de límites de determinados valores en paquetes que están destinados al puerto 18999 UDP de un dispositivo afectado. Un atacante podría explotar esta vulnerabilidad enviando paquetes maliciosos a un dispositivo afectado. Al procesar los paquetes se puede dar una situación explotable de desbordamiento de búfer. Un exploit con éxito podría permitir que el atacante ejecute código arbitrario en el dispositivo afectado con privilegios elevados. El atacante también podría aprovechar esta vulnerabilidad para hacer que el dispositivo se reinicie, provocando una denegación de servicio (DoS) temporal mientras el dispositivo se reinicia. Los paquetes maliciosos tienen que ir destinados a un dispositivo afectado y estar procesados por él. El tráfico que transita en un dispositivo no dará lugar a la vulnerabilidad. Cisco Bug IDs: CSCvf73881.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

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
2022-03-03 Exploited in Wild
2022-03-17 KEV Due Date
2024-03-07 EPSS Updated
2024-08-05 CVE Updated
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (4)

URL	Tag	Source
http://www.securityfocus.com/bid/103540	Third Party Advisory
http://www.securitytracker.com/id/1040582	Third Party Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-03	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-qos	2019-12-02

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"				16.5.1 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"				-		-		Affected