9.8
CRITICAL
CVE-2019-18261
"Omron PLC Authentication Brute Force Vulnerability"
Description

In Omron PLC CS series, all versions, Omron PLC CJ series, all versions, and Omron PLC NJ series, all versions, the software does not implement sufficient measures to prevent multiple failed authentication attempts within in a short time frame, making it more susceptible to brute force attacks.

INFO

Published Date :

Dec. 16, 2019, 8:15 p.m.

Last Modified :

Dec. 27, 2019, 3:21 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2019-18261 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 Omron plc_cj_firmware
2 Omron plc_cs_firmware
3 Omron plc_nj_firmware
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-2019-18261.

URL Resource
https://www.us-cert.gov/ics/advisories/icsa-19-346-03 Third Party Advisory US Government Resource

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-2019-18261 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-18261 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
  • Initial Analysis by [email protected]

    Dec. 27, 2019

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://www.us-cert.gov/ics/advisories/icsa-19-346-03 No Types Assigned https://www.us-cert.gov/ics/advisories/icsa-19-346-03 Third Party Advisory, US Government Resource
    Added CWE NIST CWE-307
    Added CPE Configuration OR *cpe:2.3:o:omron:plc_cj_firmware:*:*:*:*:*:*:*:* *cpe:2.3:o:omron:plc_cs_firmware:*:*:*:*:*:*:*:* *cpe:2.3:o:omron:plc_nj_firmware:*:*:*:*:*:*:*:*
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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-18261 is associated with the following CWEs:

Exploit Prediction

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

0.21 }} 0.00%

score

0.57479

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability