Upstream information

CVE-2018-12551 at MITRE

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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v2 Scores
	National Vulnerability Database
Base Score	6.8
Vector	AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector	Network
Access Complexity	Medium
Authentication	None
Confidentiality Impact	Partial
Integrity Impact	Partial
Availability Impact	Partial

CVSS v3 Scores
	National Vulnerability Database
Base Score	8.1
Vector	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector	Network
Attack Complexity	High
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality Impact	High
Integrity Impact	High
Availability Impact	High
CVSSv3 Version	3

SUSE Bugzilla entry: 1125020 [RESOLVED / FIXED]

SUSE Security Advisories:

openSUSE-SU-2019:0233-1, published Fri Dec 8 15:48:41 2023
openSUSE-SU-2019:0237-1, published Fri Dec 8 15:48:41 2023

List of released packages

Product(s)	Fixed package version(s)	References
SUSE Package Hub 15	`libmosquitto1 >= 1.4.15-bp150.3.3.1` `libmosquittopp1 >= 1.4.15-bp150.3.3.1` `mosquitto >= 1.4.15-bp150.3.3.1` `mosquitto-clients >= 1.4.15-bp150.3.3.1` `mosquitto-devel >= 1.4.15-bp150.3.3.1`	Patchnames: openSUSE-2019-237
openSUSE Leap 15.0	`libmosquitto1 >= 1.4.15-lp150.2.3.1` `libmosquittopp1 >= 1.4.15-lp150.2.3.1` `mosquitto >= 1.4.15-lp150.2.3.1` `mosquitto-clients >= 1.4.15-lp150.2.3.1` `mosquitto-devel >= 1.4.15-lp150.2.3.1`	Patchnames: openSUSE-2019-233
openSUSE Tumbleweed	`libmosquitto1 >= 2.0.11-1.2` `libmosquittopp1 >= 2.0.11-1.2` `mosquitto >= 2.0.11-1.2` `mosquitto-clients >= 2.0.11-1.2` `mosquitto-devel >= 2.0.11-1.2`	Patchnames: openSUSE-Tumbleweed-2024-11057

SUSE Timeline for this CVE

CVE page created: Mon Feb 11 17:03:41 2019
CVE page last modified: Tue Sep 3 19:06:39 2024