FKIE_CVE-2021-1134

Vulnerability from fkie_nvd - Published: 2021-06-29 03:15 - Updated: 2025-07-23 15:26
Severity ?
7.4 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Summary
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.
References
psirt@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dnac-certvalid-USEj2CZkVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dnac-certvalid-USEj2CZkVendor Advisory
Impacted products
Vendor Product Version
cisco catalyst_center *
To clipboard 

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      "value": "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."
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      "value": "Una vulnerabilidad en la funcionalidad integration de Cisco Identity Services Engine (ISE) de Cisco DNA Center Software, podr\u00eda permitir a un atacante remoto no autenticado obtener acceso no autorizado a datos confidenciales. La vulnerabilidad es debido a una comprobaci\u00f3n incompleta del certificado X.509 usado al establecer una conexi\u00f3n entre DNA Center y un servidor ISE. Un atacante podr\u00eda explotar esta vulnerabilidad al proporcionar un certificado dise\u00f1ado y podr\u00eda interceptar las comunicaciones entre el ISE y el Centro de ADN. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante visualizar y alterar la informaci\u00f3n confidencial que el ISE mantiene sobre los clientes que est\u00e1n conectados a la red"
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  "id": "CVE-2021-1134",
  "lastModified": "2025-07-23T15:26:38.713",
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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