CVE-2018-12551

2019-03-2717:26:20

CWE-703

eclipse

www.cve.org

AI Score

7.2

Confidence

High

EPSS

0.002

Percentile

64.7%

JSON

When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use a password file for authentication, any malformed data in the password file will be treated as valid. This typically means that the malformed data becomes a username and no password. If this occurs, clients can circumvent authentication and get access to the broker by using the malformed username. In particular, a blank line will be treated as a valid empty username. Other security measures are unaffected. Users who have only used the mosquitto_passwd utility to create and modify their password files are unaffected by this vulnerability.

CNA Affected

[
  {
    "product": "Eclipse Mosquitto",
    "vendor": "The Eclipse Foundation",
    "versions": [
      {
        "lessThan": "unspecified",
        "status": "affected",
        "version": "1.0",
        "versionType": "custom"
      },
      {
        "lessThanOrEqual": "1.5.5",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]