CVE-2019-1706

Cisco Adaptive Security Appliance Software IPsec Denial of Service Vulnerability

Severity Score

8.6

*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 software cryptography module of the Cisco Adaptive Security Virtual Appliance (ASAv) and Firepower 2100 Series running Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause an unexpected reload of the device that results in a denial of service (DoS) condition. The vulnerability is due to a logic error with how the software cryptography module handles IPsec sessions. An attacker could exploit this vulnerability by creating and sending traffic in a high number of IPsec sessions through the targeted device. A successful exploit could cause the device to reload and result in a DoS condition.

Una vulnerabilidad en el módulo de programa de cryptography module of the Cisco Adaptive Security Virtual Appliance (ASAv) y Firepower versión 2100 Series que ejecuta Cisco Adaptive Security Appliance (ASA) el programa podría permitir que un atacante remoto no autenticado provoque una recarga inesperada del dispositivo que provoque una condición de denegación de servicio (DoS). La vulnerabilidad se debe a un error lógico en la forma en que el módulo de criptografía del programa maneja las sesiones IPsec. Un atacante podría explotar esta vulnerabilidad creando y enviando tráfico en un gran número de sesiones IPsec a través del dispositivo objetivo. Un exploit con éxito podría causar que el dispositivo se recargue y resulte en una condición de denegación de servicio (DoS).

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2018-12-06 CVE Reserved
2019-05-03 CVE Published
2023-03-07 EPSS Updated
2024-11-19 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-327: Use of a Broken or Risky Cryptographic Algorithm
CWE-404: Improper Resource Shutdown or Release

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-20190501-asa-ipsec-dos	2023-08-15

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"	Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software"	>= 9.9 <= 9.9.2.50 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.9 <= 9.9.2.50"	-	Affected	in	Cisco Search vendor "Cisco"	Asa-5506-x Search vendor "Cisco" for product "Asa-5506-x"	-	-	Safe
Cisco Search vendor "Cisco"	Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software"	>= 9.9 <= 9.9.2.50 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.9 <= 9.9.2.50"	-	Affected	in	Cisco Search vendor "Cisco"	Asa-5506h-x Search vendor "Cisco" for product "Asa-5506h-x"	-	-	Safe
Cisco Search vendor "Cisco"	Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software"	>= 9.9 <= 9.9.2.50 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.9 <= 9.9.2.50"	-	Affected	in	Cisco Search vendor "Cisco"	Asa-5506w-x Search vendor "Cisco" for product "Asa-5506w-x"	-	-	Safe
Cisco Search vendor "Cisco"	Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software"	>= 9.9 <= 9.9.2.50 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.9 <= 9.9.2.50"	-	Affected	in	Cisco Search vendor "Cisco"	Asa-5508-x Search vendor "Cisco" for product "Asa-5508-x"	-	-	Safe
Cisco Search vendor "Cisco"	Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software"	>= 9.9 <= 9.9.2.50 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.9 <= 9.9.2.50"	-	Affected	in	Cisco Search vendor "Cisco"	Asa-5516-x Search vendor "Cisco" for product "Asa-5516-x"	-	-	Safe
Cisco Search vendor "Cisco"	Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software"	>= 9.9 <= 9.9.2.50 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.9 <= 9.9.2.50"	-	Affected	in	Cisco Search vendor "Cisco"	Asa-5525-x Search vendor "Cisco" for product "Asa-5525-x"	-	-	Safe
Cisco Search vendor "Cisco"	Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software"	>= 9.9 <= 9.9.2.50 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.9 <= 9.9.2.50"	-	Affected	in	Cisco Search vendor "Cisco"	Asa-5545-x Search vendor "Cisco" for product "Asa-5545-x"	-	-	Safe
Cisco Search vendor "Cisco"	Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software"	>= 9.9 <= 9.9.2.50 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.9 <= 9.9.2.50"	-	Affected	in	Cisco Search vendor "Cisco"	Asa-5555-x Search vendor "Cisco" for product "Asa-5555-x"	-	-	Safe