VDB
CVE-2018-12551
CVE-2018-12551
PUBLISHED
CVSS 8.100000381469727 HIGH
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.
EPSS 1.48% · 72.0th percentile
Risk Scores
CVSS 3.0
8.100000381469727
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
1.48%
72.0th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | mosquitto | 0, 1.4.3-1, 1.4.4-1 |
| Ubuntu:18.04:LTS | mosquitto | 0, 1.4.12-1, 1.4.14-1 |
Timeline
- Feb 23, 2019 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 25, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Mar 1, 2022 EPSS Score
- May 3, 2022 EPSS Score
- Jul 4, 2022 EPSS Score
- Sep 6, 2022 EPSS Score
- Nov 8, 2022 EPSS Score
- Jan 10, 2023 EPSS Score
- Mar 7, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2018-12551 third-party-advisory
- https://mosquitto.org/blog/2019/02/version-1-5-6-released/ third-party-advisory
- https://mosquitto.org/files/cve/2018-12551 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2018-12551 third-party-advisory