CVE-2019-1890
Cisco Nexus 9000 Series Fabric Switches ACI Mode Fabric Infrastructure VLAN Unauthorized Access Vulnerability
Severity Score
6.5
*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 fabric infrastructure VLAN connection establishment of the Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch Software could allow an unauthenticated, adjacent attacker to bypass security validations and connect an unauthorized server to the infrastructure VLAN. The vulnerability is due to insufficient security requirements during the Link Layer Discovery Protocol (LLDP) setup phase of the infrastructure VLAN. An attacker could exploit this vulnerability by sending a malicious LLDP packet on the adjacent subnet to the Cisco Nexus 9000 Series Switch in ACI mode. A successful exploit could allow the attacker to connect an unauthorized server to the infrastructure VLAN, which is highly privileged. With a connection to the infrastructure VLAN, the attacker can make unauthorized connections to Cisco Application Policy Infrastructure Controller (APIC) services or join other host endpoints.
Una vulnerabilidad en el establecimiento de conexión VLAN de la infraestructura de Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch Software podría permitir a un atacante adyacente no autenticado eludir las validaciones de seguridad y conectar un servidor no autorizado a la infraestructura VLAN. La vulnerabilidad se debe a requisitos de seguridad insuficientes durante la fase de configuración del protocolo de descubrimiento de capa de enlace (LLDP) de la infraestructura VLAN. Un atacante podría aprovechar esta vulnerabilidad enviando un paquete LLDP malintencionado en la subred adyacente al conmutador Cisco Nexus 9000 Series en modo ACI. Una explotación con éxito podría permitir que el atacante conecte un servidor no autorizado a la infraestructura VLAN, que es altamente privilegiada. Con una conexión a la VLAN de infraestructura, el atacante puede realizar conexiones no autorizadas a los servicios Cisco Application Policy Infrastructure Controller (APIC) o unirse a otros puntos finales de host.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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
- 2018-12-06 CVE Reserved
- 2019-07-04 CVE Published
- 2023-03-08 EPSS Updated
- 2024-09-16 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-284: Improper Access Control
CAPEC
References (2)
| URL | Tag | Source |
|---|---|---|
| http://www.securityfocus.com/bid/109052 | Third Party Advisory |
| URL | Date | SRC |
|---|
| 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" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | 9432pq Search vendor "Cisco" for product "9432pq" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | 9536pq Search vendor "Cisco" for product "9536pq" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | 9636pq Search vendor "Cisco" for product "9636pq" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | 9736pq Search vendor "Cisco" for product "9736pq" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | N9k-x9432c-s Search vendor "Cisco" for product "N9k-x9432c-s" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | N9k-x9464px Search vendor "Cisco" for product "N9k-x9464px" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | N9k-x9464tx2 Search vendor "Cisco" for product "N9k-x9464tx2" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | N9k-x9564px Search vendor "Cisco" for product "N9k-x9564px" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | N9k-x9564tx Search vendor "Cisco" for product "N9k-x9564tx" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | N9k-x9636c-r Search vendor "Cisco" for product "N9k-x9636c-r" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | N9k-x9636c-rx Search vendor "Cisco" for product "N9k-x9636c-rx" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | N9k-x97160yc-ex Search vendor "Cisco" for product "N9k-x97160yc-ex" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | N9k-x9732c-ex Search vendor "Cisco" for product "N9k-x9732c-ex" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | N9k-x9732c-fx Search vendor "Cisco" for product "N9k-x9732c-fx" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | N9k-x9736c-ex Search vendor "Cisco" for product "N9k-x9736c-ex" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | N9k-x9736c-fx Search vendor "Cisco" for product "N9k-x9736c-fx" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | N9k-x9788tc-fx Search vendor "Cisco" for product "N9k-x9788tc-fx" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 92160yc-x Search vendor "Cisco" for product "Nexus 92160yc-x" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93108tc-ex Search vendor "Cisco" for product "Nexus 93108tc-ex" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93108tc-fx Search vendor "Cisco" for product "Nexus 93108tc-fx" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93120tx Search vendor "Cisco" for product "Nexus 93120tx" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9316d-gx Search vendor "Cisco" for product "Nexus 9316d-gx" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93180yc-ex Search vendor "Cisco" for product "Nexus 93180yc-ex" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93180yc-fx Search vendor "Cisco" for product "Nexus 93180yc-fx" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93216tc-fx2 Search vendor "Cisco" for product "Nexus 93216tc-fx2" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93240yc-fx2 Search vendor "Cisco" for product "Nexus 93240yc-fx2" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9332c Search vendor "Cisco" for product "Nexus 9332c" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93360yc-fx2 Search vendor "Cisco" for product "Nexus 93360yc-fx2" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9336c-fx2 Search vendor "Cisco" for product "Nexus 9336c-fx2" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9348gc-fxp Search vendor "Cisco" for product "Nexus 9348gc-fxp" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93600cd-gx Search vendor "Cisco" for product "Nexus 93600cd-gx" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9364c Search vendor "Cisco" for product "Nexus 9364c" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Application Policy Infrastructure Controller Search vendor "Cisco" for product "Application Policy Infrastructure Controller" | 7.3\(0\)zn\(0.113\) Search vendor "Cisco" for product "Application Policy Infrastructure Controller" and version "7.3\(0\)zn\(0.113\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | X9636q-r Search vendor "Cisco" for product "X9636q-r" | - | - |
Safe
|