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[email protected]CVE-2020-3221

HistoryJun 03, 2020 - 6:15 p.m.

CVE-2020-3221

2020-06-0318:15:20

CWE-20

[email protected]

web.nvd.nist.gov

cisco

catalyst

wireless

controllers

vulnerability

cve-2020-3221

dos

netflow

7.8 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

8.4 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

52.8%

JSON

A vulnerability in the Flexible NetFlow Version 9 packet processor of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper validation of parameters in a Flexible NetFlow Version 9 record. An attacker could exploit this vulnerability by sending a malformed Flexible NetFlow Version 9 packet to the Control and Provisioning of Wireless Access Points (CAPWAP) data port of an affected device. An exploit could allow the attacker to trigger an infinite loop, resulting in a process crash that would cause a reload of the device.

Affected configurations

NVD

Node

ciscoios_xeMatch16.10.1

ciscoios_xeMatch16.10.1a

ciscoios_xeMatch16.10.1b

ciscoios_xeMatch16.10.1e

ciscoios_xeMatch16.10.1s

ciscoios_xeMatch16.10.2

ciscoios_xeMatch16.11.1

ciscoios_xeMatch16.11.1a

ciscoios_xeMatch16.11.1b

ciscoios_xeMatch16.11.1c

ciscoios_xeMatch16.11.1s

ciscoios_xeMatch16.12.1

ciscoios_xeMatch16.12.1a

ciscoios_xeMatch16.12.1c

ciscoios_xeMatch16.12.1s

ciscoios_xeMatch16.12.1t

AND

ciscocatalyst_9800-40Match-

ciscocatalyst_9800-80Match-

ciscocatalyst_9800-clMatch-

ciscocatalyst_9800-lMatch-

ciscocatalyst_9800-l-cMatch-

ciscocatalyst_9800-l-fMatch-

CPENameOperatorVersion
cisco:ios_xecisco ios xeeq16.10.1
cisco:ios_xecisco ios xeeq16.10.1a
cisco:ios_xecisco ios xeeq16.10.1b
cisco:ios_xecisco ios xeeq16.10.1e
cisco:ios_xecisco ios xeeq16.10.1s
cisco:ios_xecisco ios xeeq16.10.2
cisco:ios_xecisco ios xeeq16.11.1
cisco:ios_xecisco ios xeeq16.11.1a
cisco:ios_xecisco ios xeeq16.11.1b
cisco:ios_xecisco ios xeeq16.11.1c

CPE	Name	Operator	Version
cisco:ios_xe	cisco ios xe	eq	16.10.1
cisco:ios_xe	cisco ios xe	eq	16.10.1a
cisco:ios_xe	cisco ios xe	eq	16.10.1b
cisco:ios_xe	cisco ios xe	eq	16.10.1e
cisco:ios_xe	cisco ios xe	eq	16.10.1s
cisco:ios_xe	cisco ios xe	eq	16.10.2
cisco:ios_xe	cisco ios xe	eq	16.11.1
cisco:ios_xe	cisco ios xe	eq	16.11.1a
cisco:ios_xe	cisco ios xe	eq	16.11.1b
cisco:ios_xe	cisco ios xe	eq	16.11.1c

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CNA Affected

[
  {
    "product": "Cisco IOS XE Software 16.10.1",
    "vendor": "Cisco",
    "versions": [
      {
        "status": "affected",
        "version": "n/a"
      }
    ]
  }
]

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-fnfv9-dos-HND6Fc9u

7.8 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

8.4 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

52.8%

JSON

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