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CVE-2020-3552

Cisco Aironet Access Points Ethernet Wired Clients Denial of Service Vulnerability

Published: Sep 24, 2020Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-476
NVD MITRE
7.4CVSSHIGH
EPSS Score
0.5%
Top 62.1%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
Patch Available

Description

A vulnerability in the Ethernet packet handling of Cisco Aironet Access Points (APs) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by connecting as a wired client to the Ethernet interface of an affected device and sending a series of specific packets within a short time frame. A successful exploit could allow the attacker to cause a NULL pointer access that results in a reload of the affected device.

CVSS Vector Breakdown

AV:AAC:LPR:NUI:NS:CC:NI:NA:H
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-476

Affected Products

Wireless LAN controllerCisco Systems Inc.Networking Infrastructure
Cisco Access PointsCisco Systems Inc.Networking Infrastructure
Cisco Business Access PointsCisco Systems Inc.Networking Infrastructure
wireless lan controllerciscoNetworking Infrastructure
business access pointsciscoNetworking Infrastructure
cisco systems inc.commercialUSNetworking Infrastructureaka cisco systems, cisco
ciscocommercialUSNetworking Infrastructureaka cisco systems, cisco systems inc.
and 3 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

0 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Impact
Initial Access
View detailed technique mapping

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ap-ethport-dos-xtjTt8pY
tools.cisco.com

Timeline

Published
Sep 24, 2020
Last Updated
Nov 21, 2024

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