Vulnerability Report

CVE-2018-12551

Title: Eclipse Mosquitto Auth Bypass

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2018-12551.

CWE Category CWE-287
Published Date Mar 27, 2019
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 8.1 CVSS v3.0
Exploit Probability (EPSS)
0.60%

Vulnerability Summary

CVE-2018-12551: 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.

Impacted Vendors

E
eclipse 1

Reference Links

https://bugs.eclipse.org/bugs/show_bug.cgi?id=543401 https://lists.debian.org/debian-lts-announce/2019/10/msg00035.html https://bugs.eclipse.org/bugs/show_bug.cgi?id=543401 https://lists.debian.org/debian-lts-announce/2019/10/msg00035.html
CVSS v3.0
Source Entity [email protected]
Severity HIGH
8.1
Attack Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
6.8
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:M/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2018-12551 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity HIGH
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.