CVE-2020-3359

A vulnerability in the multicast DNS (mDNS) feature 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. The vulnerability is due to improper validation of mDNS packets. An attacker could exploit this vulnerability by sending a crafted mDNS packet to an affected device. A successful exploit could cause a device to reload, resulting in a DoS condition.

CVSS v3.0 8.6 HIGH
CVSS v2.0 7.8 HIGH

8.6^/10

CVSS v3.0 : 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-mdns-dos-3tH6cA9J	Vendor Advisory

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Configurations

Configuration 1 (hide)

AND

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

OR	cpe:2.3:h:cisco:2610xm:-:::::::*
	cpe:2.3:h:cisco:2611xm:-:::::::*
	cpe:2.3:h:cisco:2612:-:::::::*
	cpe:2.3:h:cisco:2620xm:-:::::::*
	cpe:2.3:h:cisco:2621xm:-:::::::*
	cpe:2.3:h:cisco:2650xm:-:::::::*
	cpe:2.3:h:cisco:2651xm:-:::::::*
	cpe:2.3:h:cisco:2691:-:::::::*
	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:-:::::::*

Information

Published : 2020-09-24 11:15

Updated : 2021-08-06 11:46

NVD link : CVE-2020-3359

Mitre link : CVE-2020-3359

JSON object : View

CWE

CWE-20

Improper Input Validation

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Products Affected

cisco

2621xm
2650xm
2612
2651xm
2620xm
catalyst_9800-80
catalyst_9800-cl
catalyst_9800-l-f
ios_xe
2611xm
catalyst_9800-l
2691
2610xm
catalyst_9800-l-c
catalyst_9800-40

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