CVE-2018-12551 -- mosquittoID: oval:org.secpod.oval:def:1901909 | Date: (C)2019-04-29 (M)2023-07-25 |
Class: VULNERABILITY | Family: unix |
When Eclipse Mosquitto version 1.0 to 1.5.5 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.