Description
A vulnerability in the multicast DNS (mDNS) gateway feature of Cisco Aironet Series Access Points Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation of incoming mDNS traffic. An attacker could exploit this vulnerability by sending a crafted mDNS packet to an affected device through a wireless network that is configured in FlexConnect local switching mode or through a wired network on a configured mDNS VLAN. A successful exploit could allow the attacker to cause the access point (AP) to reboot, resulting in a DoS condition.
Published: 2021-03-24
Score: 7.4 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-6906 A vulnerability in the multicast DNS (mDNS) gateway feature of Cisco Aironet Series Access Points Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation of incoming mDNS traffic. An attacker could exploit this vulnerability by sending a crafted mDNS packet to an affected device through a wireless network that is configured in FlexConnect local switching mode or through a wired network on a configured mDNS VLAN. A successful exploit could allow the attacker to cause the access point (AP) to reboot, resulting in a DoS condition.
History

Sat, 09 Nov 2024 00:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Cisco 1100 Integrated Services Router Aironet 1540 Aironet 1560 Aironet 1800 Aironet 2800 Aironet 3800 Aironet 4800 Aironet Access Point Software Catalyst 9100 Catalyst 9800 Catalyst 9800 Firmware Catalyst Iw6300 Esw6300
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2024-11-08T23:35:37.324Z

Reserved: 2020-11-13T00:00:00.000Z

Link: CVE-2021-1439

cve-icon Vulnrichment

Updated: 2024-08-03T16:11:17.298Z

cve-icon NVD

Status : Modified

Published: 2021-03-24T20:15:14.977

Modified: 2024-11-21T05:44:22.010

Link: CVE-2021-1439

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses