CVE-2022-20728

MEDIUM

4.7

Description

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.

CVE Details

CVSS v3.1 Score4.7

SeverityMEDIUM

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

Attack VectorADJACENT_NETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published9/30/2022

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

cisco:aironet_1542dcisco:aironet_1542d_firmwarecisco:aironet_1542icisco:aironet_1542i_firmwarecisco:aironet_1562dcisco:aironet_1562d_firmwarecisco:aironet_1562ecisco:aironet_1562e_firmwarecisco:aironet_1562icisco:aironet_1562i_firmwarecisco:aironet_1815icisco:aironet_1815i_firmwarecisco:aironet_1815mcisco:aironet_1815m_firmwarecisco:aironet_1815tcisco:aironet_1815t_firmwarecisco:aironet_1815wcisco:aironet_1815w_firmwarecisco:aironet_1830cisco:aironet_1830_firmwarecisco:aironet_1840cisco:aironet_1840_firmwarecisco:aironet_1850ecisco:aironet_1850e_firmwarecisco:aironet_1850icisco:aironet_1850i_firmwarecisco:aironet_2800ecisco:aironet_2800e_firmwarecisco:aironet_2800icisco:aironet_2800i_firmwarecisco:aironet_3800ecisco:aironet_3800e_firmwarecisco:aironet_3800icisco:aironet_3800i_firmwarecisco:aironet_3800pcisco:aironet_3800p_firmwarecisco:aironet_4800cisco:aironet_4800_firmwarecisco:catalyst_9105axcisco:catalyst_9105ax_firmwarecisco:catalyst_9115axcisco:catalyst_9115ax_firmwarecisco:catalyst_9117axcisco:catalyst_9117ax_firmwarecisco:catalyst_9120axcisco:catalyst_9120ax_firmwarecisco:catalyst_9124axcisco:catalyst_9124ax_firmwarecisco:catalyst_9130axcisco:catalyst_9130ax_firmwarecisco:catalyst_iw6300cisco:catalyst_iw6300_firmware

Weaknesses (CWE)

CWE-284

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apvlan-TDTtb4FY(psirt@cisco.com)

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apvlan-TDTtb4FY(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.