8.1
HIGH
CVE-2018-12551
Eclipse Mosquitto Authentication Bypass
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.

INFO

Published Date :

March 27, 2019, 6:29 p.m.

Last Modified :

Oct. 9, 2019, 11:34 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.2
Affected Products

The following products are affected by CVE-2018-12551 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Eclipse mosquitto
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-12551.

URL Resource
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

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-12551 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-12551 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Oct. 27, 2019

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2019/10/msg00035.html [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CWE Eclipse Foundation CWE-703
  • Initial Analysis by [email protected]

    Mar. 28, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:M/Au:N/C:P/I:P/A:P)
    Added CVSS V3 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://bugs.eclipse.org/bugs/show_bug.cgi?id=543401 No Types Assigned https://bugs.eclipse.org/bugs/show_bug.cgi?id=543401 Exploit, Issue Tracking, Vendor Advisory
    Added CWE CWE-287
    Added CPE Configuration OR *cpe:2.3:a:eclipse:mosquitto:*:*:*:*:*:*:*:* versions from (including) 1.0 up to (including) 1.5.5
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.24 }} 0.00%

score

0.60643

percentile

CVSS30 - Vulnerability Scoring System
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