A vulnerability in the client forwarding code of multiple Cisco Access Points (APs) could allow an unauthenticated, adjacent attacker to inject packets from the native VLAN to clients within nonnative VLANs on an affected device. This vulnerability is due to a logic error on the AP that forwards packets that are destined to a wireless client if they are received on the native VLAN. An attacker could exploit this vulnerability by obtaining access to the native VLAN and directing traffic directly to the client through their MAC/IP combination. A successful exploit could allow the attacker to bypass VLAN separation and potentially also bypass any Layer 3 protection mechanisms that are deployed.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2022-09-30T18:45:17.054877Z

Updated: 2024-09-17T04:25:17.525Z

Reserved: 2021-11-02T00:00:00

Link: CVE-2022-20728

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-09-30T19:15:10.903

Modified: 2023-11-07T03:42:45.823

Link: CVE-2022-20728

cve-icon Redhat

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