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

Share:


ICS Advisory


KIEBACK&PETER DDC4000 SERIES

Release Date
October 17, 2024
Alert Code
ICSA-24-291-05
Related topics:
Industrial Control System Vulnerabilities, Industrial Control Systems


View CSAF(link is external)


1. EXECUTIVE SUMMARY

 * CVSS v4 9.3
 * ATTENTION: Exploitable remotely/low attack complexity
 * Vendor: Kieback&Peter
 * Equipment: DDC4000 Series
 * Vulnerabilities: Path Traversal, Insufficiently Protected Credentials, Use of
   Weak Credentials


2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow an unauthenticated
attacker to gain full administrator rights on the system.


3. TECHNICAL DETAILS


3.1 AFFECTED PRODUCTS

The following Kieback&Peter DDC4000 series products are affected:

 * DDC4002 : Versions 1.12.14 and prior
 * DDC4100 : Versions 1.7.4 and prior
 * DDC4200 : Versions 1.12.14 and prior
 * DDC4200-L : Versions 1.12.14 and prior
 * DDC4400 : Versions 1.12.14 and prior
 * DDC4002e : Versions 1.17.6 and prior
 * DDC4200e : Versions 1.17.6 and prior
 * DDC4400e : Versions 1.17.6 and prior
 * DDC4020e : Versions 1.17.6 and prior
 * DDC4040e : Versions 1.17.6 and prior


3.2 VULNERABILITY OVERVIEW

3.2.1 IMPROPER LIMITATION OF A PATHNAME TO A RESTRICTED DIRECTORY ('PATH
TRAVERSAL') CWE-22(LINK IS EXTERNAL)

The affected product is vulnerable to a path traversal vulnerability, which may
allow an unauthenticated attacker to read files on the system.

CVE-2024-41717(link is external) has been assigned to this vulnerability. A CVSS
v3.1 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)).

A CVSS v4 score has also been calculated for CVE-2024-41717(link is external). A
base score of 9.3 has been calculated; the CVSS vector string is
(CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N(link is
external)).

3.2.2 INSUFFICIENTLY PROTECTED CREDENTIALS CWE-522(LINK IS EXTERNAL)

The affected product has an insufficiently protected credentials vulnerability,
which may allow an unauthenticated attacker with access to /etc/passwd to read
the password hashes of all users on the system.

CVE-2024-43812(link is external) has been assigned to this vulnerability. A CVSS
v3.1 base score of 8.4 has been calculated; the CVSS vector string is
(AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H(link is external)).

A CVSS v4 score has also been calculated for CVE-2024-43812(link is external). A
base score of 8.6 has been calculated; the CVSS vector string is
(CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N(link is
external)).

3.2.3 USE OF WEAK CREDENTIALS CWE-1391(LINK IS EXTERNAL)

The affected product uses weak credentials, which may allow an unauthenticated
attacker to get full admin rights on the system.

CVE-2024-43698(link is external) has been assigned to this vulnerability. A CVSS
v3.1 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)).

A CVSS v4 score has also been calculated for CVE-2024-43698(link is external). A
base score of 9.3 has been calculated; the CVSS vector string is
(CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N(link is
external)).


3.3 BACKGROUND

 * CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing Sector, Commercial
   Facilities Sector, Communications Sector, Financial Services Sector, Food and
   Agriculture Sector, Government Services and Facilities Sector, Healthcare and
   Public Health Sector, Information Technology Sector
 * COUNTRIES/AREAS DEPLOYED: Europe, the Middle East and Asia.
 * COMPANY HEADQUARTERS LOCATION: Germany


3.4 RESEARCHER

Raphael Ruf of terreActive AG reported these vulnerabilities to CISA.


4. MITIGATIONS

Kieback&Peter DDC4002, DDC4100, DDC4200, DDC4200-L and DDC4400 controllers are
considered End-of-Life (EOL) and are no longer supported. Users operating these
controllers should ensure they are operated in a strictly separate OT
environment and consider updating to a supported controller.

Kieback&Peter recommends users update to DDC4002e, DDC4200e, DDC4400e, DDC4020e
and DDC4040e controllers.

Kieback&Peter recommends all affected users contact their local Kieback&Peter
office to update the firmware of the supported DDC systems to v1.21.0 or later.

CISA recommends users take defensive measures to minimize the risk of
exploitation of these vulnerabilities, such as:

 * Minimize network exposure for all control system devices and/or systems,
   ensuring they are not accessible from the internet.
 * Locate control system networks and remote devices behind firewalls and
   isolating them from business networks.
 * When remote access is required, use more 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 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 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.

CISA encourages organizations to implement recommended cybersecurity strategies
for proactive defense of ICS assets.

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.

CISA also recommends users take the following measures to protect themselves
from social engineering attacks:

 * Do not click web links or open attachments in unsolicited email messages.
 * Refer to Recognizing and Avoiding Email Scams for more information on
   avoiding email scams.
 * Refer to Avoiding Social Engineering and Phishing Attacks for more
   information on social engineering attacks.

No known public exploitation specifically targeting these vulnerabilities has
been reported to CISA at this time.


5. UPDATE HISTORY

 * October 17, 2024: Initial Publication

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


TAGS

Topics
Industrial Control System Vulnerabilities, Industrial Control Systems
Sector
Commercial Facilities Sector, Communications Sector, Critical Manufacturing
Sector, Financial Services Sector, Food and Agriculture Sector, Government
Services and Facilities Sector, Healthcare and Public Health Sector, Information
Technology Sector


PLEASE SHARE YOUR THOUGHTS

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


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LCDS LAQUIS SCADA

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