www.cisa.gov Open in urlscan Pro
2a02:26f0:3500:891::447a  Public Scan

Form analysis
2 forms found in the DOM

<form class="gsc-search-box gsc-search-box-tools" accept-charset="utf-8">
  <table cellspacing="0" cellpadding="0" role="presentation" class="gsc-search-box">
    <tbody>
      <tr>
        <td class="gsc-input">
          <div class="gsc-input-box" id="gsc-iw-id1">
            <table cellspacing="0" cellpadding="0" role="presentation" id="gs_id50" class="gstl_50 gsc-input" style="width: 100%; padding: 0px;">
              <tbody>
                <tr>
                  <td id="gs_tti50" class="gsib_a"><input autocomplete="off" type="text" size="10" class="gsc-input" name="search" title="search" aria-label="search" id="gsc-i-id1" dir="ltr" spellcheck="false"
                      style="width: 100%; padding: 0px; border: none; margin: 0px; height: auto; outline: none;"></td>
                  <td class="gsib_b">
                    <div class="gsst_b" id="gs_st50" dir="ltr"><a class="gsst_a" href="javascript:void(0)" title="Clear search box" role="button" style="display: none;"><span class="gscb_a" id="gs_cb50" aria-hidden="true">×</span></a></div>
                  </td>
                </tr>
              </tbody>
            </table>
          </div>
        </td>
        <td class="gsc-search-button"><button class="gsc-search-button gsc-search-button-v2"><svg width="13" height="13" viewBox="0 0 13 13">
              <title>search</title>
              <path
                d="m4.8495 7.8226c0.82666 0 1.5262-0.29146 2.0985-0.87438 0.57232-0.58292 0.86378-1.2877 0.87438-2.1144 0.010599-0.82666-0.28086-1.5262-0.87438-2.0985-0.59352-0.57232-1.293-0.86378-2.0985-0.87438-0.8055-0.010599-1.5103 0.28086-2.1144 0.87438-0.60414 0.59352-0.8956 1.293-0.87438 2.0985 0.021197 0.8055 0.31266 1.5103 0.87438 2.1144 0.56172 0.60414 1.2665 0.8956 2.1144 0.87438zm4.4695 0.2115 3.681 3.6819-1.259 1.284-3.6817-3.7 0.0019784-0.69479-0.090043-0.098846c-0.87973 0.76087-1.92 1.1413-3.1207 1.1413-1.3553 0-2.5025-0.46363-3.4417-1.3909s-1.4088-2.0686-1.4088-3.4239c0-1.3553 0.4696-2.4966 1.4088-3.4239 0.9392-0.92727 2.0864-1.3969 3.4417-1.4088 1.3553-0.011889 2.4906 0.45771 3.406 1.4088 0.9154 0.95107 1.379 2.0924 1.3909 3.4239 0 1.2126-0.38043 2.2588-1.1413 3.1385l0.098834 0.090049z">
              </path>
            </svg></button></td>
        <td class="gsc-clear-button">
          <div class="gsc-clear-button" title="clear results">&nbsp;</div>
        </td>
      </tr>
    </tbody>
  </table>
</form>

<form class="gsc-search-box gsc-search-box-tools" accept-charset="utf-8">
  <table cellspacing="0" cellpadding="0" role="presentation" class="gsc-search-box">
    <tbody>
      <tr>
        <td class="gsc-input">
          <div class="gsc-input-box" id="gsc-iw-id2">
            <table cellspacing="0" cellpadding="0" role="presentation" id="gs_id51" class="gstl_51 gsc-input" style="width: 100%; padding: 0px;">
              <tbody>
                <tr>
                  <td id="gs_tti51" class="gsib_a"><input autocomplete="off" type="text" size="10" class="gsc-input" name="search" title="search" aria-label="search" id="gsc-i-id2" dir="ltr" spellcheck="false"
                      style="width: 100%; padding: 0px; border: none; margin: 0px; height: auto; outline: none;"></td>
                  <td class="gsib_b">
                    <div class="gsst_b" id="gs_st51" dir="ltr"><a class="gsst_a" href="javascript:void(0)" title="Clear search box" role="button" style="display: none;"><span class="gscb_a" id="gs_cb51" aria-hidden="true">×</span></a></div>
                  </td>
                </tr>
              </tbody>
            </table>
          </div>
        </td>
        <td class="gsc-search-button"><button class="gsc-search-button gsc-search-button-v2"><svg width="13" height="13" viewBox="0 0 13 13">
              <title>search</title>
              <path
                d="m4.8495 7.8226c0.82666 0 1.5262-0.29146 2.0985-0.87438 0.57232-0.58292 0.86378-1.2877 0.87438-2.1144 0.010599-0.82666-0.28086-1.5262-0.87438-2.0985-0.59352-0.57232-1.293-0.86378-2.0985-0.87438-0.8055-0.010599-1.5103 0.28086-2.1144 0.87438-0.60414 0.59352-0.8956 1.293-0.87438 2.0985 0.021197 0.8055 0.31266 1.5103 0.87438 2.1144 0.56172 0.60414 1.2665 0.8956 2.1144 0.87438zm4.4695 0.2115 3.681 3.6819-1.259 1.284-3.6817-3.7 0.0019784-0.69479-0.090043-0.098846c-0.87973 0.76087-1.92 1.1413-3.1207 1.1413-1.3553 0-2.5025-0.46363-3.4417-1.3909s-1.4088-2.0686-1.4088-3.4239c0-1.3553 0.4696-2.4966 1.4088-3.4239 0.9392-0.92727 2.0864-1.3969 3.4417-1.4088 1.3553-0.011889 2.4906 0.45771 3.406 1.4088 0.9154 0.95107 1.379 2.0924 1.3909 3.4239 0 1.2126-0.38043 2.2588-1.1413 3.1385l0.098834 0.090049z">
              </path>
            </svg></button></td>
        <td class="gsc-clear-button">
          <div class="gsc-clear-button" title="clear results">&nbsp;</div>
        </td>
      </tr>
    </tbody>
  </table>
</form>

Text Content

Skip to main content

An official website of the United States government

Here’s how you know

Here’s how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United
States.

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the
.gov website. Share sensitive information only on official, secure websites.


Cybersecurity & Infrastructure Security Agency
America's Cyber Defense Agency

Search

×

search
 

Menu
Close
×

search
 

 * Topics
   Topics
   Cybersecurity Best Practices
   Cyber Threats and Advisories
   Critical Infrastructure Security and Resilience
   Election Security
   Emergency Communications
   Industrial Control Systems
   Information and Communications Technology Supply Chain Security
   Partnerships and Collaboration
   Physical Security
   Risk Management
   How can we help?
   GovernmentEducational InstitutionsIndustryState, Local, Tribal, and
   TerritorialIndividuals and FamiliesSmall and Medium BusinessesFind Help
   Locally
 * Spotlight
 * Resources & Tools
   Resources & Tools
   All Resources & Tools
   Services
   Programs
   Resources
   Training
   Groups
 * News & Events
   News & Events
   News
   Events
   Cybersecurity Alerts & Advisories
   Directives
   Request a CISA Speaker
   Congressional Testimony
 * Careers
   Careers
   Benefits & Perks
   HireVue Applicant Reasonable Accommodations Process
   Hiring
   Resume & Application Tips
   Students & Recent Graduates
   Veteran and Military Spouses
   Work @ CISA
 * About
   About
   Culture
   Divisions & Offices
   Regions
   Leadership
   Doing Business with CISA
   Contact Us
   Site Links
   Reporting Employee and Contractor Misconduct
   CISA GitHub

Report a Cyber Issue
America's Cyber Defense Agency
Breadcrumb
 1. Home
 2. News & Events
 3. Cybersecurity Advisories
 4. ICS Advisory

Share:


ICS Advisory


ECONOLITE EOS (UPDATE A)

Last Revised
June 22, 2023
Alert Code
ICSA-23-026-02



1. EXECUTIVE SUMMARY

 * CVSS v3 9.8
 * ATTENTION: Exploitable remotely/low attack complexity
 * Vendor: Econolite
 * Equipment: EOS
 * Vulnerability: Improper Access Control, Use of Weak Hash


2. UPDATE INFORMATION

This updated advisory is a follow-up to the original advisory titled
ICSA-23-026-02 Econolite EOS that was published January 26, 2023.


3. RISK EVALUATION

Successful exploitation of these vulnerabilities could result in a remote
unauthenticated attacker gaining full control over traffic lights.


4. TECHNICAL DETAILS


4.1 AFFECTED PRODUCTS

The following versions of EOS, a traffic control software, are affected:

--------- Begin Update A Part 1 of 4 --------- 

 * EOS: Versions prior to 3.2.23

--------- End Update A Part 1 of 4 --------- 


4.2 VULNERABILITY OVERVIEW

4.2.1 IMPROPER ACCESS CONTROL CWE-284(link is external)

--------- Begin Update A Part 2 of 4 ---------

Econolite EOS versions prior to 3.2.23 lack a password requirement for gaining
“READONLY” access to log files and certain database and configuration files. One
such file contains tables with MD5 hashes and usernames for all defined users in
the control software, including administrators and technicians.

--------- End Update A Part 2 of 4 ---------

CVE-2023-0451 has been assigned to this vulnerability. A CVSS v3 base score of
7.5 has been calculated; the CVSS vector string is
(AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N(link is external)). 

4.2.2 USE OF WEAK HASH CWE-328(link is external)

--------- Begin Update A Part 3 of 4 --------- 

Econolite EOS versions prior to 3.2.23 use a weak hash algorithm for encrypting
privileged user credentials. A configuration file that is accessible without
authentication uses MD5 hashes for encrypting credentials, including those of
administrators and technicians.

--------- End Update A Part 3 of 4 ---------

CVE-2023-0452 has been assigned to this vulnerability. A CVSS v3 base score of
9.8 has been calculated; the CVSS vector string is
(AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H(link is external)).


4.3 BACKGROUND

 * CRITICAL INFRASTRUCTURE SECTORS: Transportation 
 * COUNTRIES/AREAS DEPLOYED: United States and Canada 
 * COMPANY HEADQUARTERS LOCATION: United States 


4.4 RESEARCHER

Rustam Amin reported these vulnerabilities to CISA. 


5. MITIGATIONS

--------- Begin Update A Part 4 of 4 ---------

Econolite recommends users update their affected products to the latest version.
Customers are strongly encouraged to download the latest software updates
through https://www.econolite.com/support(link is external).

Customers may also contact Econolite by sending an email to
support@econolite.com(link sends email) or calling the Support line at (800)
225-6480 or reaching out to their local Account Manager or Distributor.

Econolite also recommends that customers follow best practices for network
security and access control for all safety-critical equipment and minimize
exposure by restricting access to equipment on the open public internet.

--------- End Update A Part 4 of 4 ---------

CISA recommends users take defensive measures to minimize the risk of
exploitation of these vulnerabilities. Specifically, users should:

 * Minimize network exposure for all control system devices and/or systems, and
   ensure they are not accessible from the Internet.
 * Locate control system networks and remote devices behind firewalls and
   isolate them from business networks.
 * When remote access is required, use secure methods, such as virtual private
   networks (VPNs), recognizing VPNs may have vulnerabilities and should be
   updated to the most current version available. Also recognize VPN is only as
   secure as its connected devices.

CISA reminds organizations to perform proper impact analysis and risk assessment
prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices
on the ICS webpage at cisa.gov/ics. Several CISA products detailing cyber
defense best practices are available for reading and download, including
Improving Industrial Control Systems Cybersecurity with Defense-in-Depth
Strategies.

Additional mitigation guidance and recommended practices are publicly available
on the ICS webpage at cisa.gov/ics in the technical information paper,
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation
Strategies.

Organizations observing suspected malicious activity should follow established
internal procedures and report findings to CISA for tracking and correlation
against other incidents.

No known public exploits specifically target these vulnerabilities.

This product is provided subject to this Notification and this Privacy &
Use policy.


VENDOR

Econolite


PLEASE SHARE YOUR THOUGHTS

We recently updated our anonymous product survey; we’d welcome your feedback.


RELATED ADVISORIES

Jun 22, 2023
ICS Advisory | ICSA-23-173-02


ADVANTECH R-SEENET

Jun 22, 2023
ICS Advisory | ICSA-23-173-03


SPIDERCONTROL SCADAWEBSERVER

Jun 20, 2023
ICS Advisory | ICSA-23-171-02


ENPHASE INSTALLER TOOLKIT ANDROID APP

Jun 20, 2023
ICS Advisory | ICSA-23-171-01


ENPHASE ENVOY

Return to top
 * Topics
 * Spotlight
 * Resources & Tools
 * News & Events
 * Careers
 * About

Cybersecurity & Infrastructure Security Agency
 * Facebook
 * Twitter
 * LinkedIn
 * YouTube
 * Instagram
 * RSS

CISA Central 888-282-0870 Central@cisa.dhs.gov(link sends email)
DHS Seal
CISA.gov
An official website of the U.S. Department of Homeland Security
 * About CISA
 * Accessibility
 * Budget and Performance
 * DHS.gov
 * FOIA Requests
 * No FEAR Act
 * Office of Inspector General
 * Privacy Policy
 * Subscribe
 * The White House
 * USA.gov
 * Website Feedback