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Improper Authorization Affecting aedes package, versions <0.35.1

0.0
medium

Snyk CVSS

    Attack Complexity Low
    Scope Changed

    Threat Intelligence

    Exploit Maturity Mature
    EPSS 0.13% (48th percentile)
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NVD
5.3 medium

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  • Snyk ID npm:aedes:20180807
  • published 8 Aug 2018
  • disclosed 7 Aug 2018
  • credit mhverbakel
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Introduced: 7 Aug 2018

CVE-2018-3778 Open this link in a new tab
CWE-285 Open this link in a new tab

How to fix?

Upgrade aedes to version 0.35.1 or higher.

Overview

aedes is a Barebone MQTT server that can run on any stream server.

Affected versions of this package are vulnerable to Improper Authorization. A user can connect and subscribe to "will" from a client. From another client, a user may connect with a last will message with topic "will". Then by sending message to "test", the connection will break (because of authorization failure). Breaking the connection will trigger the LWT, and thus sends a message to will, which can be seen in the other client.