CVE-2020-3559

CVSS V2 High 7.8 CVSS V3 High 8.6

Description

A vulnerability in Cisco Aironet Access Point (AP) Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to improper handling of clients that are trying to connect to the AP. An attacker could exploit this vulnerability by sending authentication requests from multiple clients to an affected device. A successful exploit could allow the attacker to cause the affected device to reload.

Overview

CVE ID
CVE-2020-3559

Assigner
ykramarz@cisco.com

Vulnerability Status
Analyzed

Published Version
2020-09-24T18:15:21

Last Modified Date
2021-04-16T15:01:40

Weakness Enumerations

CWE	URL
CWE-400	http://cwe.mitre.org/data/definitions/400.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
		AND
cpe:2.3:o:cisco:wireless_lan_controller::::::::	1	OR	8.9	8.10.112.0
cpe:2.3:h:cisco:1111-4pwe:-:::::::*	0	OR
cpe:2.3:h:cisco:1111-8plteeawb:-:::::::*	0	OR
cpe:2.3:h:cisco:1111-8pwb:-:::::::*	0	OR
cpe:2.3:h:cisco:1113-8plteeawe:-:::::::*	0	OR
cpe:2.3:h:cisco:1113-8pmwe:-:::::::*	0	OR
cpe:2.3:h:cisco:1113-8pwe:-:::::::*	0	OR
cpe:2.3:h:cisco:1116-4plteeawe:-:::::::*	0	OR
cpe:2.3:h:cisco:1116-4pwe:-:::::::*	0	OR
cpe:2.3:h:cisco:1117-4plteeawe:-:::::::*	0	OR
cpe:2.3:h:cisco:1117-4pmlteeawe:-:::::::*	0	OR
cpe:2.3:h:cisco:1117-4pmwe:-:::::::*	0	OR
cpe:2.3:h:cisco:1117-4pwe:-:::::::*	0	OR
cpe:2.3:h:cisco:aironet_1815:-:::::::*	0	OR
cpe:2.3:h:cisco:aironet_1830e:-:::::::*	0	OR
cpe:2.3:h:cisco:aironet_1830i:-:::::::*	0	OR
cpe:2.3:h:cisco:aironet_1850e:-:::::::*	0	OR
cpe:2.3:h:cisco:aironet_1850i:-:::::::*	0	OR
cpe:2.3:h:cisco:business_140ac:-:::::::*	0	OR
cpe:2.3:h:cisco:business_145ac:-:::::::*	0	OR
cpe:2.3:h:cisco:business_240ac:-:::::::*	0	OR
		AND
cpe:2.3:a:cisco:business_access_points::::::::	1	OR	10.0	10.1.1.0
		AND
cpe:2.3:o:cisco:access_points::::::::	1	OR		16.12.4a
cpe:2.3:h:cisco:catalyst_9800-40:-:::::::*	0	OR
cpe:2.3:h:cisco:catalyst_9800-80:-:::::::*	0	OR
cpe:2.3:h:cisco:catalyst_9800-cl:-:::::::*	0	OR
cpe:2.3:h:cisco:catalyst_9800-l:-:::::::*	0	OR
cpe:2.3:h:cisco:catalyst_9800-l-c:-:::::::*	0	OR
cpe:2.3:h:cisco:catalyst_9800-l-f:-:::::::*	0	OR
		AND
cpe:2.3:a:cisco:aironet_access_point_software:8.5\(151.0\):::::::*	1	OR
cpe:2.3:a:cisco:aironet_access_point_software:17.2.0.26:::::::*	1	OR
cpe:2.3:h:cisco:aironet_1850e:-:::::::*	0	OR
cpe:2.3:h:cisco:aironet_1850i:-:::::::*	0	OR

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:L/Au:N/C:N/I:N/A:C

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
NONE

Availability Impact
COMPLETE

Base Score
7.8

Severity
HIGH

Exploitability Score
10

Impact Score
6.9

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
CHANGED

Confidentiality Impact
NONE

Availability Impact
HIGH

Base Score
8.6

Base Severity
HIGH

Exploitability Score
3.9

Impact Score
4

References

Reference URL	Reference Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aironet-dos-h3DCuLXw	Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2020-3559
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3559

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 07:15:36				Added to TrackCVE
2022-12-04 23:19:54	psirt@cisco.com	ykramarz@cisco.com	CVE Assigner	updated
2022-12-04 23:19:54	2020-09-24T18:15Z	2020-09-24T18:15:21	CVE Published Date	updated
2022-12-04 23:19:54		2021-04-16T15:01:40	CVE Modified Date	updated
2022-12-04 23:19:54		Analyzed	Vulnerability Status	updated