CVE-2021-1134CWE-295

Cisco DNA Center Certificate Validation Vulnerability

High · published June 29, 2021

CVSS v3.0
7.4
EPSS
1%
Percentile
55.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.0
7.4 · HIGH
Vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00774 · 55.3th percentile
Weakness
CWE-295 · Improper Certificate Validation
Published
2021-06-29T03:05Z
EPSS history
Timeline
  • 29 JUN 03:05Z
    Cisco DNA Center Certificate Validation Vulnerability
    cvelistv5