CVE-2018-12551
CVSS V2 Medium 6.8
CVSS V3 High 8.1
Description
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.
Overview
- CVE ID
- CVE-2018-12551
- Assigner
- emo@eclipse.org
- Vulnerability Status
- Modified
- Published Version
- 2019-03-27T18:29:00
- Last Modified Date
- 2019-10-09T23:34:04
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:eclipse:mosquitto:*:*:*:*:*:*:*:* | 1 | OR | 1.0 | 1.5.5 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6.8
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 8.1
- Base Severity
- HIGH
- Exploitability Score
- 2.2
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://bugs.eclipse.org/bugs/show_bug.cgi?id=543401 | Exploit Issue Tracking Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2019/10/msg00035.html |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-12551 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12551 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:06:36 | Added to TrackCVE | |||
| 2022-12-03 18:43:39 | security@eclipse.org | emo@eclipse.org | CVE Assigner | updated |
| 2022-12-03 18:43:39 | 2019-03-27T18:29Z | 2019-03-27T18:29:00 | CVE Published Date | updated |
| 2022-12-03 18:43:39 | 2019-10-09T23:34:04 | CVE Modified Date | updated | |
| 2022-12-03 18:43:39 | Modified | Vulnerability Status | updated |