CVE-2020-3399

A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition of an affected device. The vulnerability is due to insufficient input validation during CAPWAP packet processing. An attacker could exploit this vulnerability by sending a crafted CAPWAP packet to an affected device, resulting in a buffer over-read. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition on the affected device.

CVSS v3 8.6 HIGH
CVSS v2.0 7.8 HIGH

8.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

7.8^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-capwap-dos-ShFzXf	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:o:cisco:ios_xe:16.12:::::::*
	cpe:2.3:o:cisco:ios_xe:16.12.1s:::::::*
	cpe:2.3:o:cisco:ios_xe:16.12.2:::::::*

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 : 2023-12-10 13:41

NVD link : CVE-2020-3399

Mitre link : CVE-2020-3399

CVE.ORG link : CVE-2020-3399

JSON object : View

Products Affected

cisco

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

CWE

CWE-125

Out-of-bounds Read

CWE-126

Buffer Over-read

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The vulnerability is due to insufficient input validation during CAPWAP packet processing. An attacker could exploit this vulnerability by sending a crafted CAPWAP packet to an affected device, resulting in a buffer over-read. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition on the affected device."}, {"lang": "es", "value": "Una vulnerabilidad en el procesamiento del protocolo Control and Provisioning of Wireless Access Points (CAPWAP) de Cisco IOS XE Software para Cisco Catalyst 9800 Series Wireless Controllers Series, podr\u00eda permitir a un atacante remoto no autenticado causar una condici\u00f3n de denegaci\u00f3n de servicio (DoS) de un dispositivo afectado. La vulnerabilidad es debido a una comprobaci\u00f3n insuficiente de la entrada durante el procesamiento de paquetes CAPWAP. Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de un paquete CAPWAP dise\u00f1ado hacia un dispositivo afectado, resultando una lectura excesiva del b\u00fafer. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante causar que el dispositivo afectado se bloquear y se recargue, lo que resultar\u00eda en una condici\u00f3n de DoS en el dispositivo afectado."}], "lastModified": "2023-11-07T03:22:40.250", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:cisco:ios_xe:16.12:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4B868980-66AB-4321-85CC-5B492DDC1694"}, {"criteria": "cpe:2.3:o:cisco:ios_xe:16.12.1s:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9027A528-2588-4C06-810B-5BB313FE4323"}, {"criteria": "cpe:2.3:o:cisco:ios_xe:16.12.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E5019B59-508E-40B0-9C92-2C26F58E2FBE"}], "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"}