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 2. News & Events
 3. Cybersecurity Advisories
 4. ICS Advisory

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ICS Advisory


DELTA ELECTRONICS INFRASUITE DEVICE MASTER

Release Date
June 29, 2023
Alert Code
ICSA-23-180-01



1. EXECUTIVE SUMMARY

 * CVSS v3 7.8
 * ATTENTION: Exploitable remotely/low attack complexity
 * Vendor: Delta Electronics
 * Equipment: InfraSuite Device Master
 * Vulnerabilities: Improper Access Control, Deserialization of Untrusted Data


2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow an attacker to
escalate privileges or remotely execute arbitrary code.


3. TECHNICAL DETAILS


3.1 AFFECTED PRODUCTS

The following Delta Electronics products are affected: 

 * InfraSuite Device Master: Versions prior to 1.0.7


3.2 VULNERABILITY OVERVIEW

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

An attacker could bypass the latest Delta Electronics InfraSuite Device Master
(versions prior to 1.0.7) patch, which could allow an attacker to retrieve file
contents.

CVE-2023-34316 has been assigned to this vulnerability. A CVSS v3 base score of
6.5 has been calculated; the CVSS vector string is
(AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N(link is external)).

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

Delta Electronics InfraSuite Device Master versions prior to 1.0.7 contain
improper access controls that could allow an attacker to alter privilege
management configurations, resulting in privilege escalation.

CVE-2023-30765 has been assigned to this vulnerability. A CVSS v3 base score of
8.8 has been calculated; the CVSS vector string is
(AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H(link is external)).

3.2.3 DESERIALIZATION OF UNTRUSTED DATA CWE-502(link is external)

Delta Electronics InfraSuite Device Master versions prior to 1.0.7 contains
classes that cannot be deserialized, which could allow an attack to remotely
execute arbitrary code. 

CVE-2023-34347 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)).


3.3 BACKGROUND

 * CRITICAL INFRASTRUCTURE SECTORS: Energy

 * COUNTRIES/AREAS DEPLOYED: Worldwide

 * COMPANY HEADQUARTERS LOCATION: Taiwan


3.4 RESEARCHER

Piotr Bazydlo (@chudypb) of Trend Micro’s Zero Day Initiative reported these
vulnerabilities to CISA.


4. MITIGATIONS

Delta Electronics has provided a fix to these vulnerabilities. Users are
encouraged to update to the latest version.

 * Delta Electronics InfraSuite Device Master: Update to v1.0.7(link is
   external).

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

Delta Electronics


PLEASE SHARE YOUR THOUGHTS

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


RELATED ADVISORIES

Jun 29, 2023
ICS Advisory | ICSA-23-180-03


OVARRO TBOX RTUS

Jun 29, 2023
ICS Advisory | ICSA-23-180-04


MITSUBISHI ELECTRIC MELSEC-F SERIES

Jun 29, 2023
ICS Advisory | ICSA-23-180-02


SCHNEIDER ELECTRIC ECOSTRUXURE OPERATOR TERMINAL EXPERT

Jun 27, 2023
ICS Advisory | ICSA-23-178-01


HITACHI ENERGY FOXMAN-UN AND UNEM PRODUCTS

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