CVE-2017-7650

Public Exploit

Description

In Mosquitto before 1.4.12, 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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.11% Top 25%
Vendor Advisory debian.org Vendor Advisory mosquitto.org
Affected: Eclipse Foundation Mosquitto
Published at:
Updated at:

References

Link Tags
http://mosquitto.org/2017/05/security-advisory-cve-2017-7650/ patch vendor advisory
http://www.securityfocus.com/bid/98741 vdb entry third party advisory
http://www.debian.org/security/2017/dsa-3865 third party advisory vendor advisory
https://bugs.eclipse.org/bugs/show_bug.cgi?id=516765 third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2017-7650?
CVE-2017-7650 has been scored as a medium severity vulnerability.
How to fix CVE-2017-7650?
To fix CVE-2017-7650, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-7650 being actively exploited in the wild?
It is possible that CVE-2017-7650 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-7650?
CVE-2017-7650 affects Eclipse Foundation Mosquitto.
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