ubuntu-cve-2017-7650
Vulnerability from osv_ubuntu
Published
2017-09-11 16:29
Modified
2026-04-22 07:38
Summary
Details

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.

Severity
6.5 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libmosquitto0",
            "binary_version": "0.15-2ubuntu1.1"
          },
          {
            "binary_name": "libmosquittopp0",
            "binary_version": "0.15-2ubuntu1.1"
          },
          {
            "binary_name": "mosquitto",
            "binary_version": "0.15-2ubuntu1.1"
          },
          {
            "binary_name": "mosquitto-clients",
            "binary_version": "0.15-2ubuntu1.1"
          },
          {
            "binary_name": "python-mosquitto",
            "binary_version": "0.15-2ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "mosquitto",
        "purl": "pkg:deb/ubuntu/mosquitto@0.15-2ubuntu1.1?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.15-2ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.15-2ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libmosquitto1",
            "binary_version": "1.4.8-1ubuntu0.16.04.1"
          },
          {
            "binary_name": "libmosquittopp1",
            "binary_version": "1.4.8-1ubuntu0.16.04.1"
          },
          {
            "binary_name": "mosquitto",
            "binary_version": "1.4.8-1ubuntu0.16.04.1"
          },
          {
            "binary_name": "mosquitto-clients",
            "binary_version": "1.4.8-1ubuntu0.16.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "mosquitto",
        "purl": "pkg:deb/ubuntu/mosquitto@1.4.8-1ubuntu0.16.04.1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.4.8-1ubuntu0.16.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.4.3-1",
        "1.4.4-1",
        "1.4.7-1",
        "1.4.8-1",
        "1.4.8-1build1"
      ]
    }
  ],
  "aliases": [],
  "details": "In Mosquitto before 1.4.12, pattern based ACLs can be bypassed by clients that set their username/client id to \u0027#\u0027 or \u0027+\u0027. 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.",
  "id": "UBUNTU-CVE-2017-7650",
  "modified": "2026-04-22T07:38:14Z",
  "published": "2017-09-11T16:29:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2017-7650"
    },
    {
      "type": "REPORT",
      "url": "http://mosquitto.org/2017/05/security-advisory-cve-2017-7650/"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2017-7650"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2017-7650"
  ]
}



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