CVE-2020-3390

A vulnerability in Simple Network Management Protocol (SNMP) trap generation for wireless clients of the Cisco IOS XE Wireless Controller Software for the Cisco Catalyst 9000 Family could allow an unauthenticated, adjacent attacker to cause the device to unexpectedly reload, causing a denial of service (DoS) condition on an affected device. The vulnerability is due to the lack of input validation of the information used to generate an SNMP trap in relation to a wireless client connection. An attacker could exploit this vulnerability by sending an 802.1x packet with crafted parameters during the wireless authentication setup phase of a connection. A successful exploit could allow the attacker to cause the device to reload, causing a DoS condition.

CVSS v3 7.4 HIGH
CVSS v2.0 5.7 MEDIUM

7.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.0

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

5.7^/10

CVSS v2.0 : MEDIUM

Vector : AV:A/AC:M/Au:N/C:N/I:N/A:C

Exploitability : 5.5 / Impact : 6.9

Access Vector ADJACENT_NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ewlc-snmp-dos-wNkedg9K	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:cisco:ios_xe:16.12.1:*:*:*:*:*:*:*

OR	cpe:2.3:h:cisco:catalyst_9800-40:-:::::::*
	cpe:2.3:h:cisco:catalyst_9800-80:-:::::::*
	cpe:2.3:h:cisco:catalyst_9800-cl:-:::::::*
	cpe:2.3:h:cisco:catalyst_9800-l:-:::::::*
	cpe:2.3:h:cisco:catalyst_9800-l-c:-:::::::*
	cpe:2.3:h:cisco:catalyst_9800-l-f:-:::::::*

History

No history.

Information

Published : 2020-09-24 18:15

Updated : 2024-02-28 18:08

NVD link : CVE-2020-3390

Mitre link : CVE-2020-3390

CVE.ORG link : CVE-2020-3390

JSON object : View

Products Affected

cisco

catalyst_9800-40
catalyst_9800-l
catalyst_9800-80
ios_xe
catalyst_9800-l-c
catalyst_9800-cl
catalyst_9800-l-f

CWE

CWE-20

Improper Input Validation

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A successful exploit could allow the attacker to cause the device to reload, causing a DoS condition."}, {"lang": "es", "value": "Una vulnerabilidad en la generaci\u00f3n de trampas Simple Network Management Protocol (SNMP) para clientes inal\u00e1mbricos del Cisco IOS XE Wireless Controller Software para la Cisco Catalyst 9000 Family, podr\u00eda permitir a un atacante adyacente no autenticado causar que el dispositivo se recargue inesperadamente, provocando una denegaci\u00f3n de servicio ( DoS) en un dispositivo afectado. La vulnerabilidad es debido a una falta de comprobaci\u00f3n de entrada de la informaci\u00f3n usada para generar una trampa SNMP en relaci\u00f3n con una conexi\u00f3n de cliente inal\u00e1mbrico. Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de un paquete 802.1x con par\u00e1metros dise\u00f1ados durante la fase de configuraci\u00f3n de autenticaci\u00f3n inal\u00e1mbrica de una conexi\u00f3n. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante causar que el dispositivo se recargue, provocando una condici\u00f3n de DoS."}], "lastModified": "2021-08-06T18:58:46.207", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cisco:ios_xe:16.12.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "20F47E46-DD4F-46B8-8A67-24EFA6D6AE4E"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:cisco:catalyst_9800-40:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "1B9ED0E5-CB20-4106-9CF2-8EB587B33543"}, {"criteria": "cpe:2.3:h:cisco:catalyst_9800-80:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "2B0E620C-8E09-4F7C-A326-26013173B993"}, {"criteria": "cpe:2.3:h:cisco:catalyst_9800-cl:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "FF93F1C8-669F-4ECB-8D81-ECDA7B550175"}, {"criteria": "cpe:2.3:h:cisco:catalyst_9800-l:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "2E0BA345-B7D7-4975-9199-4DC7875BBFD0"}, {"criteria": "cpe:2.3:h:cisco:catalyst_9800-l-c:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "4E9EA95F-4E39-4D9C-8A84-D1F6014A4A40"}, {"criteria": "cpe:2.3:h:cisco:catalyst_9800-l-f:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "EA0BC769-C244-41BD-BE80-E67F4E1CDDA4"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "ykramarz@cisco.com"}