What is the CVSS score of CVE-2017-7650?

CVE-2017-7650 has a CVSS 3.0 base score of 6.5 (Medium). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 1.1%.

Is there a public PoC exploit available for CVE-2017-7650?

Yes, a public proof-of-concept exploit is available for CVE-2017-7650. Prioritise patching immediately. EPSS: 1.1%.

Is there a patch available for CVE-2017-7650?

Yes, a patch is available for CVE-2017-7650. Update the affected software to the latest version immediately.

Debian Linux CVE-2017-7650

MEDIUM

Improper Authentication (CWE-287)

2017-09-11 emo@eclipse.org

Authentication Bypass Debian Debian Linux Mosquitto Eclipse

6.5

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

6.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

Sep 11, 2017 - 16:29 cve.org

MEDIUM 6.5

DescriptionCVE.org

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.

AnalysisAI

In Mosquitto before 1.4.12, pattern based ACLs can be bypassed by clients that set their username/client id to '#' or '+'. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. 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. Affected products include: Eclipse Mosquitto, Debian Debian Linux. Version information: before 1.4.12.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.