CVE-2019-15256
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv1 Denial of Service Vulnerability
Severity Score
8.6
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
A vulnerability in the Internet Key Exchange version 1 (IKEv1) feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to improper management of system memory. An attacker could exploit this vulnerability by sending malicious IKEv1 traffic to an affected device. The attacker does not need valid credentials to authenticate the VPN session, nor does the attacker's source address need to match a peer statement in the crypto map applied to the ingress interface of the affected device. An exploit could allow the attacker to exhaust system memory resources, leading to a reload of an affected device.
Una vulnerabilidad en la funcionalidad Internet Key Exchange versión 1 (IKEv1) del Software Cisco Adaptive Security Appliance (ASA) y el Software Cisco Firepower Threat Defense (FTD), podría permitir a un atacante remoto no autenticado desencadenar una recarga de un dispositivo afectado, resultando en un condición de denegación de servicio (DoS). La vulnerabilidad es debido a una administración inapropiada de la memoria del sistema. Un atacante podría explotar esta vulnerabilidad mediante el envío de tráfico malicioso IKEv1 hacia un dispositivo afectado. El atacante no necesita credenciales válidas para autenticar la sesión VPN, ni la dirección de origen del atacante debe coincidir con una declaración de peer en el mapa criptográfico aplicado a la interfaz de entrada del dispositivo afectado. Una explotación podría permitir al atacante agotar los recursos de memoria del sistema, conllevando a la recarga de un dispositivo afectado.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-08-20 CVE Reserved
- 2019-10-02 CVE Published
- 2023-03-08 EPSS Updated
- 2024-09-16 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-399: Resource Management Errors
- CWE-400: Uncontrolled Resource Consumption
CAPEC
References (1)
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Cisco Search vendor "Cisco" | Asa 5505 Firmware Search vendor "Cisco" for product "Asa 5505 Firmware" | 9.9\(2.4\) Search vendor "Cisco" for product "Asa 5505 Firmware" and version "9.9\(2.4\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5505 Search vendor "Cisco" for product "Asa 5505" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Asa 5505 Firmware Search vendor "Cisco" for product "Asa 5505 Firmware" | 201.4\(1.21\) Search vendor "Cisco" for product "Asa 5505 Firmware" and version "201.4\(1.21\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5505 Search vendor "Cisco" for product "Asa 5505" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Asa 5510 Firmware Search vendor "Cisco" for product "Asa 5510 Firmware" | 9.9\(2.4\) Search vendor "Cisco" for product "Asa 5510 Firmware" and version "9.9\(2.4\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5510 Search vendor "Cisco" for product "Asa 5510" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Asa 5510 Firmware Search vendor "Cisco" for product "Asa 5510 Firmware" | 201.4\(1.21\) Search vendor "Cisco" for product "Asa 5510 Firmware" and version "201.4\(1.21\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5510 Search vendor "Cisco" for product "Asa 5510" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Asa 5512-x Firmware Search vendor "Cisco" for product "Asa 5512-x Firmware" | 9.9\(2.4\) Search vendor "Cisco" for product "Asa 5512-x Firmware" and version "9.9\(2.4\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5512-x Search vendor "Cisco" for product "Asa 5512-x" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Asa 5512-x Firmware Search vendor "Cisco" for product "Asa 5512-x Firmware" | 201.4\(1.21\) Search vendor "Cisco" for product "Asa 5512-x Firmware" and version "201.4\(1.21\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5512-x Search vendor "Cisco" for product "Asa 5512-x" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Asa 5515-x Firmware Search vendor "Cisco" for product "Asa 5515-x Firmware" | 9.9\(2.4\) Search vendor "Cisco" for product "Asa 5515-x Firmware" and version "9.9\(2.4\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5515-x Search vendor "Cisco" for product "Asa 5515-x" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Asa 5515-x Firmware Search vendor "Cisco" for product "Asa 5515-x Firmware" | 201.4\(1.21\) Search vendor "Cisco" for product "Asa 5515-x Firmware" and version "201.4\(1.21\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5515-x Search vendor "Cisco" for product "Asa 5515-x" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Asa 5520 Firmware Search vendor "Cisco" for product "Asa 5520 Firmware" | 9.9\(2.4\) Search vendor "Cisco" for product "Asa 5520 Firmware" and version "9.9\(2.4\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5520 Search vendor "Cisco" for product "Asa 5520" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Asa 5520 Firmware Search vendor "Cisco" for product "Asa 5520 Firmware" | 201.4\(1.21\) Search vendor "Cisco" for product "Asa 5520 Firmware" and version "201.4\(1.21\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5520 Search vendor "Cisco" for product "Asa 5520" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Asa 5525-x Firmware Search vendor "Cisco" for product "Asa 5525-x Firmware" | 9.9\(2.4\) Search vendor "Cisco" for product "Asa 5525-x Firmware" and version "9.9\(2.4\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5525-x Search vendor "Cisco" for product "Asa 5525-x" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Asa 5525-x Firmware Search vendor "Cisco" for product "Asa 5525-x Firmware" | 201.4\(1.21\) Search vendor "Cisco" for product "Asa 5525-x Firmware" and version "201.4\(1.21\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5525-x Search vendor "Cisco" for product "Asa 5525-x" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Asa 5540 Firmware Search vendor "Cisco" for product "Asa 5540 Firmware" | 9.9\(2.4\) Search vendor "Cisco" for product "Asa 5540 Firmware" and version "9.9\(2.4\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5540 Search vendor "Cisco" for product "Asa 5540" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Asa 5540 Firmware Search vendor "Cisco" for product "Asa 5540 Firmware" | 201.4\(1.21\) Search vendor "Cisco" for product "Asa 5540 Firmware" and version "201.4\(1.21\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5540 Search vendor "Cisco" for product "Asa 5540" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Asa 5545-x Firmware Search vendor "Cisco" for product "Asa 5545-x Firmware" | 9.9\(2.4\) Search vendor "Cisco" for product "Asa 5545-x Firmware" and version "9.9\(2.4\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5545-x Search vendor "Cisco" for product "Asa 5545-x" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Asa 5545-x Firmware Search vendor "Cisco" for product "Asa 5545-x Firmware" | 201.4\(1.21\) Search vendor "Cisco" for product "Asa 5545-x Firmware" and version "201.4\(1.21\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5545-x Search vendor "Cisco" for product "Asa 5545-x" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Asa 5550 Firmware Search vendor "Cisco" for product "Asa 5550 Firmware" | 9.9\(2.4\) Search vendor "Cisco" for product "Asa 5550 Firmware" and version "9.9\(2.4\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5550 Search vendor "Cisco" for product "Asa 5550" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Asa 5550 Firmware Search vendor "Cisco" for product "Asa 5550 Firmware" | 201.4\(1.21\) Search vendor "Cisco" for product "Asa 5550 Firmware" and version "201.4\(1.21\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5550 Search vendor "Cisco" for product "Asa 5550" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Asa 5555-x Firmware Search vendor "Cisco" for product "Asa 5555-x Firmware" | 9.9\(2.4\) Search vendor "Cisco" for product "Asa 5555-x Firmware" and version "9.9\(2.4\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5555-x Search vendor "Cisco" for product "Asa 5555-x" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Asa 5555-x Firmware Search vendor "Cisco" for product "Asa 5555-x Firmware" | 201.4\(1.21\) Search vendor "Cisco" for product "Asa 5555-x Firmware" and version "201.4\(1.21\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5555-x Search vendor "Cisco" for product "Asa 5555-x" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Asa 5580 Firmware Search vendor "Cisco" for product "Asa 5580 Firmware" | 9.9\(2.4\) Search vendor "Cisco" for product "Asa 5580 Firmware" and version "9.9\(2.4\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5580 Search vendor "Cisco" for product "Asa 5580" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Asa 5580 Firmware Search vendor "Cisco" for product "Asa 5580 Firmware" | 201.4\(1.21\) Search vendor "Cisco" for product "Asa 5580 Firmware" and version "201.4\(1.21\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asa 5580 Search vendor "Cisco" for product "Asa 5580" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software" | >= 9.7 < 9.8.4.10 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.7 < 9.8.4.10" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software" | >= 9.9 < 9.9.2.47 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.9 < 9.9.2.47" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software" | >= 9.10 < 9.10.1.30 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.10 < 9.10.1.30" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software" | >= 9.12 < 9.12.2.5 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.12 < 9.12.2.5" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense" | >= 6.2.0 < 6.2.3.11 Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 6.2.0 < 6.2.3.11" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense" | >= 6.3.0 < 6.3.0.2 Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 6.3.0 < 6.3.0.2" | - |
Affected
| ||||||