CVE-2022-20798

Cisco Email Security Appliance and Cisco Secure Email and Web Manager External Authentication Bypass Vulnerability

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

A vulnerability in the external authentication functionality of Cisco Secure Email and Web Manager, formerly known as Cisco Security Management Appliance (SMA), and Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass authentication and log in to the web management interface of an affected device. This vulnerability is due to improper authentication checks when an affected device uses Lightweight Directory Access Protocol (LDAP) for external authentication. An attacker could exploit this vulnerability by entering a specific input on the login page of the affected device. A successful exploit could allow the attacker to gain unauthorized access to the web-based management interface of the affected device.

Una vulnerabilidad en la funcionalidad de autenticación externa de Cisco Secure Email and Web Manager, anteriormente conocido como Cisco Security Management Appliance (SMA), y Cisco Email Security Appliance (ESA) podría permitir a un atacante remoto no autenticado saltarse la autenticación e iniciar sesión en la interfaz de administración web de un dispositivo afectado. Esta vulnerabilidad es debido a la comprobación inapropiada de la autenticación cuando un dispositivo afectado usa el protocolo ligero de acceso a directorios (LDAP) para la autenticación externa. Un atacante podría explotar esta vulnerabilidad al introducir una entrada específica en la página de inicio de sesión del dispositivo afectado. Una explotación con éxito podría permitir al atacante conseguir acceso no autorizado a la interfaz de administración basada en la web del dispositivo afectado

*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

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2021-11-02 CVE Reserved
2022-06-15 CVE Published
2024-09-06 EPSS Updated
2024-11-01 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-sma-esa-auth-bypass-66kEcxQD	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"		Email Security Appliance Search vendor "Cisco" for product "Email Security Appliance"				>= 14.0 < 14.0.1-033 Search vendor "Cisco" for product "Email Security Appliance" and version " >= 14.0 < 14.0.1-033"		-		Affected
Cisco Search vendor "Cisco"		Email Security Appliance Search vendor "Cisco" for product "Email Security Appliance"				7.1.5 Search vendor "Cisco" for product "Email Security Appliance" and version "7.1.5"		-		Affected
Cisco Search vendor "Cisco"		Secure Email And Web Manager Search vendor "Cisco" for product "Secure Email And Web Manager"				>= 13.0 < 13.0.0-277 Search vendor "Cisco" for product "Secure Email And Web Manager" and version " >= 13.0 < 13.0.0-277"		-		Affected
Cisco Search vendor "Cisco"		Secure Email And Web Manager Search vendor "Cisco" for product "Secure Email And Web Manager"				>= 13.6 < 13.6.2-090 Search vendor "Cisco" for product "Secure Email And Web Manager" and version " >= 13.6 < 13.6.2-090"		-		Affected
Cisco Search vendor "Cisco"		Secure Email And Web Manager Search vendor "Cisco" for product "Secure Email And Web Manager"				>= 13.8 < 13.8.1-090 Search vendor "Cisco" for product "Secure Email And Web Manager" and version " >= 13.8 < 13.8.1-090"		-		Affected
Cisco Search vendor "Cisco"		Secure Email And Web Manager Search vendor "Cisco" for product "Secure Email And Web Manager"				>= 14.0 < 14.0.0-418 Search vendor "Cisco" for product "Secure Email And Web Manager" and version " >= 14.0 < 14.0.0-418"		-		Affected
Cisco Search vendor "Cisco"		Secure Email And Web Manager Search vendor "Cisco" for product "Secure Email And Web Manager"				>= 14.1 < 14.1.0-250 Search vendor "Cisco" for product "Secure Email And Web Manager" and version " >= 14.1 < 14.1.0-250"		-		Affected