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cveCiscoCVE-2021-1134
HistoryJun 29, 2021 - 3:15 a.m.

CVE-2021-1134

2021-06-2903:15:06
CWE-295
cisco
web.nvd.nist.gov
87
2
cve-2021-1134
cisco
identity services engine
ise
dna center
vulnerability
remote attacker
sensitive data
unauthorized access
x.509 certificate
nvd

CVSS2

5.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

CVSS3

7.4

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

AI Score

7.4

Confidence

High

EPSS

0.002

Percentile

62.2%

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.

Affected configurations

Nvd
Node
ciscodna_centerRange<2.2.2.1
VendorProductVersionCPE
ciscodna_center*cpe:2.3:a:cisco:dna_center:*:*:*:*:*:*:*:*

CNA Affected

[
  {
    "product": "Cisco Digital Network Architecture Center (DNA Center)",
    "vendor": "Cisco",
    "versions": [
      {
        "status": "affected",
        "version": "n/a"
      }
    ]
  }
]

Social References

More

CVSS2

5.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

CVSS3

7.4

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

AI Score

7.4

Confidence

High

EPSS

0.002

Percentile

62.2%

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