[SECURITY] [DLA 961-1] mosquitto security update

2017-05-3009:01:45

lists.debian.org

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:S/C:P/I:N/A:N

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

AI Score

6.7

Confidence

High

EPSS

0.284

Percentile

96.9%

JSON

Package : mosquitto
Version : 0.15-2+deb7u1
CVE ID : CVE-2017-7650
Debian Bug :

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

thanks,

Gianfranco