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CVE-2017-7650

6.5 · MEDIUM

In Mosquitto before 1.4.12, pattern based ACLs can be bypassed by clients that set their username/client id to '#' or '+'.

Published Sep 11, 2017CWE-287EPSS 2.47%

Overview

CVE-2017-7650 is a medium-severity vulnerability. It was published on September 11, 2017 and has a CVSS 3.0 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refmosquitto.org/2017/05/security-advisory-cve-2017-7650/Refwww.debian.org/security/2017/dsa-3865Refwww.securityfocus.com/bid/98741Refbugs.eclipse.org/bugs/show_bug.cgi?id=516765Refmosquitto.org/2017/05/security-advisory-cve-2017-7650/Refwww.debian.org/security/2017/dsa-3865Refwww.securityfocus.com/bid/98741Refbugs.eclipse.org/bugs/show_bug.cgi?id=516765

How CyberStrike helps

Frequently asked questions

What is CVE-2017-7650?

CVE-2017-7650 is a medium-severity vulnerability. It was published on September 11, 2017 and has a CVSS 3.0 base score of 6.5 (MEDIUM).

How severe is CVE-2017-7650?

This vulnerability has a CVSS 3.0 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2017-7650?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-7650?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-7650 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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