CVE-2023-20243
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
A vulnerability in the RADIUS message processing feature of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to cause the affected system to stop processing RADIUS packets.
This vulnerability is due to improper handling of certain RADIUS accounting requests. An attacker could exploit this vulnerability by sending a crafted authentication request to a network access device (NAD) that uses Cisco ISE for authentication, authorization, and accounting (AAA). This would eventually result in the NAD sending a RADIUS accounting request packet to Cisco ISE. An attacker could also exploit this vulnerability by sending a crafted RADIUS accounting request packet to Cisco ISE directly if the RADIUS shared secret is known. A successful exploit could allow the attacker to cause the RADIUS process to unexpectedly restart, resulting in authentication or authorization timeouts and denying legitimate users access to the network or service. Clients already authenticated to the network would not be affected.
Note: To recover the ability to process RADIUS packets, a manual restart of the affected Policy Service Node (PSN) may be required. For more information, see the Details ["#details"] section of this advisory.
Una vulnerabilidad en el procesamiento de mensajes en RADIUS de Cisco Identity Services Engine (ISE) podría permitir a un atacante remoto no autenticado causar que el sistema afectado deje de procesar paquetes. Esta vulnerabilidad es debido al manejo inapropiado de determinadas peticiones. Un atacante podría explotar esta vulnerabilidad mediante el envío de una petición de autenticación a un dispositivo de acceso a la red (NAD)que use Cisco ISE para la autenticación. autorización y contabilidad (AAA). Esto eventualmente daría como resultado que el NAD envíe un paquete de solicitud de contabilidad RADIUS a Cisco ISE. Un atacante también podría aprovechar esta vulnerabilidad enviando un paquete de solicitud de contabilidad RADIUS manipulado a Cisco ISE si el secreto compartido de Radius es conocido. Un exploit exitoso podría permitir que el atacante haga que el proceso RADIUS se reinicie inesperadamente, lo que provocaría tiempos de espera de autenticación o autorización y negaría a los usuarios legítimos el acceso a la red o al servicio. Los clientes ya autenticados en la red no se verían afectados. Nota: Para recuperar la capacidad de procesar paquetes RADIUS, es posible que sea necesario reiniciar manualmente el nodo de servicio de políticas (PSN) afectado. Para obtener más información, consulte la sección Detalles ["#details"] de este aviso.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2022-10-27 CVE Reserved
- 2023-09-06 CVE Published
- 2024-08-02 CVE Updated
- 2024-09-12 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-399: Resource Management Errors
- CWE-755: Improper Handling of Exceptional Conditions
CAPEC
References (1)
| URL | Tag | Source |
|---|
| 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" | Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine" | 3.1 Search vendor "Cisco" for product "Identity Services Engine" and version "3.1" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine" | 3.1 Search vendor "Cisco" for product "Identity Services Engine" and version "3.1" | patch1 |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine" | 3.1 Search vendor "Cisco" for product "Identity Services Engine" and version "3.1" | patch2 |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine" | 3.1 Search vendor "Cisco" for product "Identity Services Engine" and version "3.1" | patch3 |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine" | 3.1 Search vendor "Cisco" for product "Identity Services Engine" and version "3.1" | patch4 |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine" | 3.1 Search vendor "Cisco" for product "Identity Services Engine" and version "3.1" | patch5 |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine" | 3.1 Search vendor "Cisco" for product "Identity Services Engine" and version "3.1" | patch6 |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine" | 3.2 Search vendor "Cisco" for product "Identity Services Engine" and version "3.2" | - |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine" | 3.2 Search vendor "Cisco" for product "Identity Services Engine" and version "3.2" | patch1 |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine" | 3.2 Search vendor "Cisco" for product "Identity Services Engine" and version "3.2" | patch2 |
Affected
| ||||||