PT-2020-5116 · Cisco · Cisco Ios Xe Wireless Controller+1

Published 2020-09-24 · Updated 2021-08-06 · CVE-2020-3418

Positive Technologies (AI Summary)

CVSS v3.1

4.7

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Cisco IOS XE Wireless Controller Software for Cisco Catalyst 9800 Series Routers (affected versions not specified)

Description A vulnerability in the software could allow an unauthenticated, adjacent attacker to send ICMPv6 traffic prior to the client being placed into RUN state. The issue is due to an incomplete access control list (ACL) being applied prior to RUN state. An attacker could exploit this 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.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Access Control

Improper Privilege Management

Weakness Enumeration

CWE-284

CWE-269

Related Identifiers

BDU:2020-05712

CVE-2020-3418

Affected Products

Cisco Ios Xe Wireless Controller

Cisco Ios Xe

References · 5

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-icmpv6-qb9eYyCR · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-3418 · Security Note
• https://bdu.fstec.ru/vul/2020-05712 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-icmpv6-qb9eYyCR · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-3418 · Vendor Advisory