CVE-2017-7650

moderate-risk
Published 2017-09-11

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.

Do I need to act?

~
1.1% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10 Medium
NETWORK / LOW complexity

Affected Products (2)

Affected Vendors

Debian Eclipse

References (8)

Patch http://mosquitto.org/2017/05/security-advisory-cve-2017-7650/
Third Party Advisory http://www.debian.org/security/2017/dsa-3865
Third Party Advisory http://www.securityfocus.com/bid/98741
Exploit https://bugs.eclipse.org/bugs/show_bug.cgi?id=516765
Patch http://mosquitto.org/2017/05/security-advisory-cve-2017-7650/
Third Party Advisory http://www.debian.org/security/2017/dsa-3865
Third Party Advisory http://www.securityfocus.com/bid/98741
Exploit https://bugs.eclipse.org/bugs/show_bug.cgi?id=516765
34
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 3/34 · Minimal
Exposure 7/34 · Low