// For flags

CVE-2021-1134

Cisco DNA Center Certificate Validation Vulnerability

Severity Score

7.4
*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 Cisco Identity Services Engine (ISE) integration feature of the Cisco DNA Center Software could allow an unauthenticated, remote attacker to gain unauthorized access to sensitive data. The vulnerability is due to an incomplete validation of the X.509 certificate used when establishing a connection between DNA Center and an ISE server. An attacker could exploit this vulnerability by supplying a crafted certificate and could then intercept communications between the ISE and DNA Center. A successful exploit could allow the attacker to view and alter sensitive information that the ISE maintains about clients that are connected to the network.

Una vulnerabilidad en la funcionalidad integration de Cisco Identity Services Engine (ISE) de Cisco DNA Center Software, podría permitir a un atacante remoto no autenticado obtener acceso no autorizado a datos confidenciales. La vulnerabilidad es debido a una comprobación incompleta del certificado X.509 usado al establecer una conexión entre DNA Center y un servidor ISE. Un atacante podría explotar esta vulnerabilidad al proporcionar un certificado diseñado y podría interceptar las comunicaciones entre el ISE y el Centro de ADN. Una explotación con éxito podría permitir al atacante visualizar y alterar la información confidencial que el ISE mantiene sobre los clientes que están conectados a la red

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-11-13 CVE Reserved
  • 2021-06-29 CVE Published
  • 2024-06-19 EPSS Updated
  • 2024-09-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-295: Improper Certificate Validation
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
 Dna Center
Search vendor "Cisco" for product "Dna Center"
 < 2.2.2.1
Search vendor "Cisco" for product "Dna Center" and version " < 2.2.2.1"
-
Affected