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Improper Authentication Affecting mosquitto package, versions >=1.0.0, <1.5.6

0.0
high

Snyk CVSS

    Attack Complexity High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.25% (65th percentile)
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NVD
8.1 high

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  • Snyk ID SNYK-COCOAPODS-MOSQUITTO-470675
  • published 13 Nov 2019
  • disclosed 31 Jan 2019
  • credit Unknown
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Introduced: 31 Jan 2019

CVE-2018-12551 Open this link in a new tab
CWE-287 Open this link in a new tab

How to fix?

Upgrade Mosquitto to version 1.5.6 or higher.

Overview

Mosquitto is an open source implementation of a server for version 3.1 and 3.1.1 of the MQTT protocol.

Affected versions of this package are vulnerable to Improper Authentication. Clients are granted access to the broker because it incorrectly validated empty lines or malformed data in the password file, treating such data as a valid username and allowing an attacker to bypass authentication. This vulnerability does not affect the users using the mosquitto_passwd utility to create and modify their password files.