CVE Vulnerabilities

CVE-2018-12550

Expected Behavior Violation

Published: Mar 27, 2019 | Modified: Nov 21, 2024
CVSS 3.x
8.1
HIGH
Source:
NVD
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM

When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use an ACL file, and that ACL file is empty, or contains only comments or blank lines, then Mosquitto will treat this as though no ACL file has been defined and use a default allow policy. The new behaviour is to have an empty ACL file mean that all access is denied, which is not a useful configuration but is not unexpected.

Weakness

A feature, API, or function does not perform according to its specification.

Affected Software

Name Vendor Start Version End Version
Mosquitto Eclipse 1.0 (including) 1.5.5 (including)
Mosquitto Ubuntu bionic *
Mosquitto Ubuntu cosmic *
Mosquitto Ubuntu esm-infra-legacy/trusty *
Mosquitto Ubuntu trusty *
Mosquitto Ubuntu trusty/esm *
Mosquitto Ubuntu upstream *
Mosquitto Ubuntu xenial *

References