CVE-2020-3400

Cisco IOS XE Software Web UI Authorization Bypass Vulnerability

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

A vulnerability in the web UI feature of Cisco IOS XE Software could allow an authenticated, remote attacker to utilize parts of the web UI for which they are not authorized.The vulnerability is due to insufficient authorization of web UI access requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web UI. A successful exploit could allow the attacker to utilize parts of the web UI for which they are not authorized. This could allow a Read-Only user to perform actions of an Admin user.

Una vulnerabilidad en la funcionalidad de la Interfaz de Usuario web de Cisco IOS XE Software, podría permitir a un atacante remoto autenticado usar partes de la Interfaz de Usuario web para las que no está autorizado. La vulnerabilidad es debido a una autorización insuficiente de las peticiones de acceso a la Interfaz de Usuario web. Un atacante podría explotar esta vulnerabilidad mediante el envío de una petición HTTP diseñada hacia la interfaz de la Interfaz de Usuario web. Una explotación con éxito podría permitir al atacante utilizar partes de la petición web para las que no está autorizado. Esto podría permitir a un usuario de solo lectura realizar acciones de un usuario administrador.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2019-12-12 CVE Reserved
2020-09-24 CVE Published
2024-06-11 EPSS Updated
2024-11-13 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-862: Missing Authorization

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-webui-auth-bypass-6j2BYUc7	2020-11-24

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"				16.2.2 Search vendor "Cisco" for product "Ios Xe" and version "16.2.2"		-		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
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.3.1a Search vendor "Cisco" for product "Ios Xe" and version "16.3.1a"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.3.2 Search vendor "Cisco" for product "Ios Xe" and version "16.3.2"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.3.3 Search vendor "Cisco" for product "Ios Xe" and version "16.3.3"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.3.4 Search vendor "Cisco" for product "Ios Xe" and version "16.3.4"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.3.5 Search vendor "Cisco" for product "Ios Xe" and version "16.3.5"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.3.5b Search vendor "Cisco" for product "Ios Xe" and version "16.3.5b"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.3.6 Search vendor "Cisco" for product "Ios Xe" and version "16.3.6"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.3.7 Search vendor "Cisco" for product "Ios Xe" and version "16.3.7"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.3.8 Search vendor "Cisco" for product "Ios Xe" and version "16.3.8"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.3.9 Search vendor "Cisco" for product "Ios Xe" and version "16.3.9"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.3.10 Search vendor "Cisco" for product "Ios Xe" and version "16.3.10"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				16.3.11 Search vendor "Cisco" for product "Ios Xe" and version "16.3.11"		-		Affected
Cisco Search vendor "Cisco"		Ios Xe Search vendor "Cisco" for product "Ios Xe"				17.2.1t Search vendor "Cisco" for product "Ios Xe" and version "17.2.1t"		-		Affected