Vulnerability Details : CVE-2017-7650
Potential exploit
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.
Vulnerability category: BypassGain privilege
Products affected by CVE-2017-7650
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:a:eclipse:mosquitto:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-7650
1.17%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 77 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-7650
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:N/A:N |
8.0
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2017-7650
-
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-7650
-
http://www.debian.org/security/2017/dsa-3865
Debian -- Security Information -- DSA-3865-1 mosquittoThird Party Advisory
-
https://bugs.eclipse.org/bugs/show_bug.cgi?id=516765
516765 – (CVE-2017-7650) CVE-2017-7650: Eclipse Mosquitto ACL security issueExploit;Third Party Advisory
-
http://www.securityfocus.com/bid/98741
Mosquitto CVE-2017-7650 Security Bypass VulnerabilityThird Party Advisory;VDB Entry
-
http://mosquitto.org/2017/05/security-advisory-cve-2017-7650/
Security advisory: CVE-2017-7650 | Eclipse MosquittoPatch;Vendor Advisory
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