CVE-2020-13849 Information

Description

The MQTT protocol 3.1.1 requires a server to set a timeout value of 1.5 times the Keep-Alive value specified by a client which allows remote attackers to cause a denial of service (loss of the ability to establish new connections) as demonstrated by SlowITe.

CVSS Vector

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

Reference

https://doi.org/10.3390/s20102932 https://www.mdpi.com/1424-8220/20/10/2932

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5