CVE-2020-3492

HIGH
New! CVE Severity Now Using CVSS v3

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Description

A vulnerability in the Flexible NetFlow Version 9 packet processor of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers and Cisco AireOS Software for Cisco Wireless LAN Controllers (WLC) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient validation of certain parameters in a Flexible NetFlow Version 9 record. An attacker could exploit this vulnerability by spoofing the address of an existing Access Point on the network and sending a Control and Provisioning of Wireless Access Points (CAPWAP) packet that includes a crafted Flexible NetFlow Version 9 record to an affected device. A successful exploit could allow the attacker to cause a process crash that would lead to a reload of the device.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-wlc-fnfv9-EvrAQpNX

Details

Source: MITRE

Published: 2020-09-24

Updated: 2020-10-08

Type: CWE-20

Risk Information

CVSS v2

Base Score: 7.8

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

Impact Score: 6.9

Exploitability Score: 10

Severity: HIGH

CVSS v3

Base Score: 8.6

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

Impact Score: 4

Exploitability Score: 3.9

Severity: HIGH

Tenable Plugins

View all (2 total)

IDNameProductFamilySeverity
141369Cisco AireOS Software for Cisco Wireless LAN Controllers (WLC) DoS (cisco-sa-iosxe-wlc-fnfv9-EvrAQpNX)NessusCISCO
high
141368Cisco IOS XE Software for Catalyst 9800 Series DoS (cisco-sa-iosxe-wlc-fnfv9-EvrAQpNX)NessusCISCO
high