CVE-2020-3170
Cisco NX-OS Software NX-API Denial of Service Vulnerability
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause an NX-API system process to unexpectedly restart. The vulnerability is due to incorrect validation of the HTTP header of a request that is sent to the NX-API. An attacker could exploit this vulnerability by sending a crafted HTTP request to the NX-API on an affected device. A successful exploit could allow the attacker to cause a denial of service (DoS) condition in the NX-API service; however, the Cisco NX-OS device itself would still be available and passing network traffic. Note: The NX-API feature is disabled by default.
Una vulnerabilidad en la funcionalidad NX-API de Cisco NX-OS Software, podría permitir a un atacante remoto no autenticado causar que un proceso del sistema NX-API se reinicie inesperadamente. La vulnerabilidad es debido a una comprobación incorrecta del encabezado HTTP de una petición que es enviada hacia la NX-API. Un atacante podría explotar esta vulnerabilidad mediante el envío de una petición HTTP diseñada hacia la NX-API sobre un dispositivo afectado. Una explotación con éxito podría permitir al atacante causar una condición de denegación de servicio (DoS) en el servicio NX-API; sin embargo, el dispositivo Cisco NX-OS por sí mismo estaría aún disponible y pasando tráfico de red. Nota: La funcionalidad NX-API está deshabilitada por defecto.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2019-12-12 CVE Reserved
- 2020-02-26 CVE Published
- 2023-05-30 EPSS Updated
- 2024-09-17 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
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" | Nx-os Search vendor "Cisco" for product "Nx-os" | < 8.4\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 8.4\(1\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Mds 9132t Search vendor "Cisco" for product "Mds 9132t" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | < 8.4\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 8.4\(1\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Mds 9148s Search vendor "Cisco" for product "Mds 9148s" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | < 8.4\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 8.4\(1\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Mds 9148t Search vendor "Cisco" for product "Mds 9148t" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | < 8.4\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 8.4\(1\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Mds 9216 Search vendor "Cisco" for product "Mds 9216" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | < 8.4\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 8.4\(1\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Mds 9216a Search vendor "Cisco" for product "Mds 9216a" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | < 8.4\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 8.4\(1\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Mds 9216i Search vendor "Cisco" for product "Mds 9216i" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | < 8.4\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 8.4\(1\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Mds 9222i Search vendor "Cisco" for product "Mds 9222i" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | < 8.4\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 8.4\(1\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Mds 9506 Search vendor "Cisco" for product "Mds 9506" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | < 8.4\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 8.4\(1\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Mds 9509 Search vendor "Cisco" for product "Mds 9509" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | < 8.4\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 8.4\(1\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Mds 9513 Search vendor "Cisco" for product "Mds 9513" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | < 8.4\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 8.4\(1\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Mds 9706 Search vendor "Cisco" for product "Mds 9706" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | < 8.4\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 8.4\(1\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Mds 9710 Search vendor "Cisco" for product "Mds 9710" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | < 8.4\(1\) Search vendor "Cisco" for product "Nx-os" and version " < 8.4\(1\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Mds 9718 Search vendor "Cisco" for product "Mds 9718" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | < 8.2\(5\) Search vendor "Cisco" for product "Nx-os" and version " < 8.2\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 7000 Search vendor "Cisco" for product "Nexus 7000" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | < 8.2\(5\) Search vendor "Cisco" for product "Nx-os" and version " < 8.2\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 7700 Search vendor "Cisco" for product "Nexus 7700" | - | - |
Safe
|