CVE-2020-3216

Cisco IOS XE SD-WAN Software Authentication Bypass Vulnerability

Severity Score

6.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

A vulnerability in Cisco IOS XE SD-WAN Software could allow an unauthenticated, physical attacker to bypass authentication and gain unrestricted access to the root shell of an affected device. The vulnerability exists because the affected software has insufficient authentication mechanisms for certain commands. An attacker could exploit this vulnerability by stopping the boot initialization of an affected device. A successful exploit could allow the attacker to bypass authentication and gain unrestricted access to the root shell of the affected device.

Una vulnerabilidad en Cisco IOS XE SD-WAN Software, podría permitir a un atacante físico no autenticado omitir la autenticación y conseguir acceso sin restricciones al shell root de un dispositivo afectado. La vulnerabilidad se presenta porque el software afectado presenta mecanismos de autenticación insuficientes para determinados comandos. Un atacante podría explotar esta vulnerabilidad al detener la inicialización de arranque de un dispositivo afectado. Una explotación con éxito podría permitir al atacante omitir la autenticación y conseguir acceso sin restricciones al shell root del dispositivo afectado.

*Credits: N/A

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2019-12-12 CVE Reserved
2020-06-03 CVE Published
2023-03-08 EPSS Updated
2024-11-15 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-287: Improper Authentication

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-auth-b-NzwhJHH7	2020-06-10

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 Sd-wan Search vendor "Cisco" for product "Ios Xe Sd-wan"				16.9.0 Search vendor "Cisco" for product "Ios Xe Sd-wan" and version "16.9.0"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Sd-wan Search vendor "Cisco" for product "Ios Xe Sd-wan"				16.9.1 Search vendor "Cisco" for product "Ios Xe Sd-wan" and version "16.9.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Sd-wan Search vendor "Cisco" for product "Ios Xe Sd-wan"				16.9.2 Search vendor "Cisco" for product "Ios Xe Sd-wan" and version "16.9.2"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Sd-wan Search vendor "Cisco" for product "Ios Xe Sd-wan"				16.9.3 Search vendor "Cisco" for product "Ios Xe Sd-wan" and version "16.9.3"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Sd-wan Search vendor "Cisco" for product "Ios Xe Sd-wan"				16.9.4 Search vendor "Cisco" for product "Ios Xe Sd-wan" and version "16.9.4"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Sd-wan Search vendor "Cisco" for product "Ios Xe Sd-wan"				16.10.0 Search vendor "Cisco" for product "Ios Xe Sd-wan" and version "16.10.0"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Sd-wan Search vendor "Cisco" for product "Ios Xe Sd-wan"				16.10.1 Search vendor "Cisco" for product "Ios Xe Sd-wan" and version "16.10.1"		-		Affected