CVE-2020-3418: Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family Improper Access Control Vulnerability
First published: Thu Sep 24 2020(Updated: )
A vulnerability in Cisco IOS XE Wireless Controller Software for Cisco Catalyst 9800 Series Routers could allow an unauthenticated, adjacent attacker to send ICMPv6 traffic prior to the client being placed into RUN state. The vulnerability is due to an incomplete access control list (ACL) being applied prior to RUN state. An attacker could exploit this vulnerability by connecting to the associated service set identifier (SSID) and sending ICMPv6 traffic. A successful exploit could allow the attacker to send ICMPv6 traffic prior to RUN state.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XE | =17.1.1 | |
| Cisco Catalyst 9800-40 | ||
| Cisco Catalyst 9800-80 | ||
| Cisco Catalyst 9800-cl | ||
| Cisco Catalyst 9800-l | ||
| Cisco Catalyst 9800-l-c | ||
| Cisco Catalyst 9800-l-f |
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Reference Links
Frequently Asked Questions
What is CVE-2020-3418?
CVE-2020-3418 is a vulnerability in Cisco IOS XE Wireless Controller Software for Cisco Catalyst 9800 Series Routers.
What is the severity of CVE-2020-3418?
The severity of CVE-2020-3418 is medium with a CVSS score of 4.7.
How does CVE-2020-3418 impact Cisco IOS XE?
CVE-2020-3418 allows an unauthenticated, adjacent attacker to send ICMPv6 traffic prior to the client being placed into RUN state.
Is Cisco Catalyst 9800-40 affected by CVE-2020-3418?
No, Cisco Catalyst 9800-40 is not affected by CVE-2020-3418.
How can I fix CVE-2020-3418?
To fix CVE-2020-3418, apply the necessary security patches or updates provided by Cisco.
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- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/severity
- agent/title
- agent/last-modified-date
- agent/weakness
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- agent/tags
- agent/description
- agent/first-publish-date
- agent/event
- vendor/cisco
- canonical/cisco ios xe
- version/cisco ios xe/17.1.1
- canonical/cisco catalyst 9800-40
- canonical/cisco catalyst 9800-80
- canonical/cisco catalyst 9800-cl
- canonical/cisco catalyst 9800-l
- canonical/cisco catalyst 9800-l-c
- canonical/cisco catalyst 9800-l-f