Vulnerability Details : CVE-2020-13849
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.
Vulnerability category: Denial of service
Products affected by CVE-2020-13849
- cpe:2.3:a:mqtt:mqtt:3.1.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-13849
0.21%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 58 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-13849
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2020-13849
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-13849
-
https://www.mdpi.com/1424-8220/20/10/2932
Technical Description;Third Party Advisory
-
https://doi.org/10.3390/s20102932
Sensors | Free Full-Text | SlowITe, a Novel Denial of Service Attack Affecting MQTTTechnical Description;Third Party Advisory
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