Executive Summary

Informations
Name CVE-2020-3494 First vendor Publication 2020-09-24
Vendor Cve Last vendor Modification 2021-10-19

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Overall CVSS Score 7.4
Base Score 7.4 Environmental Score 7.4
impact SubScore 4 Temporal Score 7.4
Exploitabality Sub Score 2.8
 
Attack Vector Adjacent Attack Complexity Low
Privileges Required None User Interaction None
Scope Changed Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:A/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 6.1 Attack Range Adjacent network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 6.5 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Multiple vulnerabilities in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition of an affected device. These vulnerabilities are due to insufficient validation of CAPWAP packets. An attacker could exploit these vulnerabilities by sending a malformed CAPWAP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition on the affected device.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3494

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-20 Improper Input Validation

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 1

Snort® IPS/IDS

Date Description
2020-12-08 Cisco Wireless LAN Controller CAPWAP denial of service attempt
RuleID : 55807 - Revision : 1 - Type : SERVER-OTHER

Sources (Detail)

Source Url
CISCO https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-s...

Alert History

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Date Informations
2021-10-20 00:23:13
  • Multiple Updates
2020-12-08 21:24:01
  • Multiple Updates
2020-10-09 00:22:58
  • Multiple Updates
2020-09-25 00:23:00
  • First insertion