www.cisa.gov
Open in
urlscan Pro
2600:1400:d:4a0::447a
Public Scan
Submitted URL: https://ics-cert.us-cert.gov/advisories/ICSA-19-036-02
Effective URL: https://www.cisa.gov/news-events/ics-advisories/icsa-19-036-02
Submission: On June 06 via api from IN — Scanned from US
Effective URL: https://www.cisa.gov/news-events/ics-advisories/icsa-19-036-02
Submission: On June 06 via api from IN — Scanned from US
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"> </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"> </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 ROCKWELL AUTOMATION ETHERNET/IP WEB SERVER MODULES Last Revised February 19, 2019 Alert Code ICSA-19-036-02 1. EXECUTIVE SUMMARY * CVSS v3 5.3 * ATTENTION: Exploitable remotely/low skill level to exploit * Vendor: Rockwell Automation * Equipment: EtherNet/IP Web Server Modules * Vulnerability: Improper Input Validation 2. RISK EVALUATION Successful exploitation of this vulnerability could allow a remote attacker to deny communication with Simple Network Management Protocol (SNMP) service. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of EtherNet/IP web server module, a web server module, are affected: * 1756-EWEB (includes 1756-EWEBK) Version 5.001 and earlier, and * CompactLogix 1768-EWEB Version 2.005 and earlier. 3.2 VULNERABILITY OVERVIEW 3.2.1 IMPROPER INPUT VALIDATION CWE-20(LINK IS EXTERNAL) A remote attacker could send a crafted UDP packet to the SNMP service causing a denial-of-service condition to occur until the affected product is restarted. CVE-2018-19016 has been assigned to this vulnerability. A CVSS v3 base score of 5.3 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)(link is external). 3.3 BACKGROUND * CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing * COUNTRIES/AREAS DEPLOYED: Worldwide * COMPANY HEADQUARTERS LOCATION: United States 3.4 RESEARCHER Rockwell Automation working with Tenable reported this vulnerability to NCCIC. 4. MITIGATIONS Rockwell Automation recommends that affected users disable the SNMP service if not in use. For more information please refer to the Rockwell Automation security advisory at (login required): https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1084268(link is external) NCCIC recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should: * Minimize network exposure for all control system devices and/or systems, and ensure that they are not accessible from the Internet. * Locate control system networks and remote devices behind firewalls, and isolate them from the business network. * When remote access is required, use secure methods, such as Virtual Private Networks (VPNs), recognizing that VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize that VPN is only as secure as the connected devices. NCCIC reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.NCCIC also provides a section for control systems security recommended practices on the ICS-CERT web page. Several recommended 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-CERT website in the Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to NCCIC for tracking and correlation against other incidents. No known public exploits specifically target this vulnerability. VENDOR Rockwell Automation PLEASE SHARE YOUR THOUGHTS We recently updated our anonymous product survey; we’d welcome your feedback. RELATED ADVISORIES Jun 01, 2023 ICS Advisory | ICSA-23-152-01 ADVANTECH WEBACCESS/SCADA Jun 01, 2023 ICS Advisory | ICSA-23-152-02 HID GLOBAL SAFE May 30, 2023 ICS Advisory | ICSA-23-150-01 ADVANTECH WEBACCESS/SCADA May 25, 2023 ICS Advisory | ICSA-23-145-01 MOXA MXSECURITY SERIES 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