Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| The Eclipse Foundation / Eclipse Mosquitto | affected 1.0 before unspecified; affected unspecified through 1.5.5 |
CWE
CWE-703
References
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=543401
- https://lists.debian.org/debian-lts-announce/2019/10/msg00035.html
ADP enrichment
No English description supplied.