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AUSCERT External Security Bulletin Redistribution
ESB-2020.1403
ICS Advisory (icsa-20-112-01) Inductive Automation IgnitionAdvisory
(icsa-20-112-01) Inductive Automation Ignition
23 April 2020
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AusCERT Security Bulletin Summary
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Product: Ignition 8 Gateway
Publisher: ICS-CERT
Operating System: Network Appliance
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-10641
Original Bulletin:
https://www.us-cert.gov/ics/advisories/icsa-20-112-01
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ICS Advisory (ICSA-20-112-01)
Inductive Automation Ignition
Original release date: April 21, 2020
Legal Notice
All information products included in https://us-cert.gov/ics are provided"as
is" for informational purposes only. The Department of Homeland Security (DHS)
does not provide any warranties of any kind regarding any information contained
within. DHS does not endorse any commercial product or service, referenced in
this product or otherwise. Further dissemination of this product is governed by
the Traffic Light Protocol (TLP) marking in the header. For more information
about TLP, see https://www.us-cert.gov/tlp/ .
1. EXECUTIVE SUMMARY
o CVSS v3 9.1
o ATTENTION: Exploitable remotely/low skill level to exploit
o Vendor: Inductive Automation
o Equipment: Ignition 8 Gateway
o Vulnerability: Improper Access Control
2. RISK EVALUATION
Successful exploitation of this vulnerability could allow an attacker to write
endless log statements into the database, which could result in a
denial-of-service condition.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of Ignition 8 Gateway are affected if running the
Perspective Module:
o Ignition 8 Gateway versions prior to 8.0.10
3.2 VULNERABILITY OVERVIEW
3.2.1 IMPROPER ACCESS CONTROLS CWE-284
An unprotected logging route may allow an attacker to write endless log
statements into the database without space limits or authentication. This
results in consuming the entire available hard-disk space, causing a
denial-of-service condition.
CVE-2020-10641 has been assigned to this vulnerability. A CVSS v3 base score of
9.1 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:N/S:U/
C:N/I:H/A:H ).
3.3 BACKGROUND
o CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing, Energy,
Information Technology
o COUNTRIES/AREAS DEPLOYED: United States
o COMPANY HEADQUARTERS LOCATION: United States
3.4 RESEARCHER
Sharon Brizinov and Mashav Sapir from Claroty reported this vulnerability to
Inductive Automation and CISA.
4. MITIGATIONS
Inductive Automation recommends the following mitigation:
o Upgrade Ignition 8 Gateway to v8.0.10
The following workarounds are suggested if users cannot upgrade to v8.0.10 or
above:
o If running the Perspective Module, set "perspective.routes" to a priority
level of WARN or higher. The exploit triggers the code path that logs a
message with priority level INFO.
o For gateways that are deployed behind a web application firewall or reverse
proxy, deploy a rule to deny access to all gateway HTTP requests that
include the path: /data/perspective/print-to-log.
CISA recommends users take defensive measures to minimize the risk of
exploitation of this vulnerability. Specifically, users should:
o Minimize network exposure for all control system devices and/or systems,
and ensure that they are not accessible from the Internet .
o Locate control system networks and remote devices behind firewalls, and
isolate them from the business network.
o 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.
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 on us-cert.gov . 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 webpage on us-cert.gov 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 CISA for tracking
and correlation against other incidents.
No known public exploits specifically target this vulnerability.
For any questions related to this report, please contact the CISA at:
Email: CISAservicedesk@cisa.dhs.gov
Toll Free: 1-888-282-0870
CISA continuously strives to improve its products and services. You can help by
choosing one of the links below to provide feedback about this product.
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