CVE-2020-3578

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software WebVPN Portal Access Rule Bypass Vulnerability

Severity Score

6.5

*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 web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass a configured access rule and access parts of the WebVPN portal that are supposed to be blocked. The vulnerability is due to insufficient validation of URLs when portal access rules are configured. An attacker could exploit this vulnerability by accessing certain URLs on the affected device.

Una vulnerabilidad en la interfaz de servicios web de Cisco Adaptive Security Appliance (ASA) Software y Cisco Firepower Threat Defense (FTD) Software, podría permitir a un atacante remoto no autenticado omitir una regla de acceso configurada y acceder a partes del portal WebVPN que se supone que están bloqueadas. La vulnerabilidad es debido a una comprobación insuficiente de las URL cuando se configuran las reglas de acceso al portal. Un atacante podría explotar esta vulnerabilidad al acceder a determinadas URL en el dispositivo afectado

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2019-12-12 CVE Reserved
2020-10-21 CVE Published
2023-10-25 EPSS Updated
2024-11-13 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-863: Incorrect Authorization

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-rule-bypass-P73ABNWQ	2023-11-07

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"		Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense"				< 6.3.0.6 Search vendor "Cisco" for product "Firepower Threat Defense" and version " < 6.3.0.6"		-		Affected
Cisco Search vendor "Cisco"		Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense"				>= 6.4.0 < 6.4.0.10 Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 6.4.0 < 6.4.0.10"		-		Affected
Cisco Search vendor "Cisco"		Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense"				>= 6.5.0 < 6.5.0.5 Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 6.5.0 < 6.5.0.5"		-		Affected
Cisco Search vendor "Cisco"		Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense"				>= 6.6.0 < 6.6.1 Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 6.6.0 < 6.6.1"		-		Affected
Cisco Search vendor "Cisco"		Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software"				< 9.6.4.45 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " < 9.6.4.45"		-		Affected
Cisco Search vendor "Cisco"		Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software"				>= 9.7 < 9.8.4.26 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.7 < 9.8.4.26"		-		Affected
Cisco Search vendor "Cisco"		Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software"				>= 9.9 < 9.9.2.80 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.9 < 9.9.2.80"		-		Affected
Cisco Search vendor "Cisco"		Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software"				>= 9.10 < 9.10.1.44 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.10 < 9.10.1.44"		-		Affected
Cisco Search vendor "Cisco"		Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software"				>= 9.12 < 9.12.4.4 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.12 < 9.12.4.4"		-		Affected
Cisco Search vendor "Cisco"		Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software"				>= 9.13 < 9.13.1.13 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.13 < 9.13.1.13"		-		Affected
Cisco Search vendor "Cisco"		Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software"				>= 9.14 < 9.14.1.19 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.14 < 9.14.1.19"		-		Affected