Debian Security Advisory

DLA-961-1 mosquitto -- LTS security update

Date Reported:
30 May 2017
Affected Packages:
mosquitto
Vulnerable:
Yes
Security database references:
In Mitre's CVE dictionary: CVE-2017-7650.
More information:
  • CVE-2017-7650

    Pattern based ACLs can be bypassed by clients that set their username/client id to ‘#’ or ‘+’. This allows locally or remotely connected clients to access MQTT topics that they do have the rights to. The same issue may be present in third party authentication/access control plugins for Mosquitto.

    The vulnerability only comes into effect where pattern based ACLs are in use, or potentially where third party plugins are in use.

For Debian 7 Wheezy, these problems have been fixed in version 0.15-2+deb7u1.

We recommend that you upgrade your mosquitto packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS