Vulnerability Monitor

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CVE-2017-7650

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.

Published

2017-09-11T16:29:00.260

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 6.5 (MEDIUM)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: SINGLE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

8.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-287

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	eclipse	mosquitto	< 1.4.12	Yes
Operating System	debian	debian_linux	8.0	Yes

References

http://mosquitto.org/2017/05/security-advisory-cve-2017-7650/ Patch, Vendor Advisory ([email protected])
http://www.debian.org/security/2017/dsa-3865 Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/98741 Third Party Advisory, VDB Entry ([email protected])
https://bugs.eclipse.org/bugs/show_bug.cgi?id=516765 Exploit, Third Party Advisory ([email protected])
http://mosquitto.org/2017/05/security-advisory-cve-2017-7650/ Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2017/dsa-3865 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/98741 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://bugs.eclipse.org/bugs/show_bug.cgi?id=516765 Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)