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

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ICS Advisory


ABUS TVIP

Release Date
July 06, 2023
Alert Code
ICSA-23-187-02



1. EXECUTIVE SUMMARY

 * CVSS v3 7.2
 * ATTENTION: Exploitable remotely/low attack complexity/public exploits are
   available
 * Vendor: ABUS
 * Equipment: ABUS Security Camera
 * Vulnerability: Command injection


2. RISK EVALUATION

Successful exploitation of this vulnerability could allow arbitrary file reads
or remote code execution.


3. TECHNICAL DETAILS


3.1 AFFECTED PRODUCTS

The following versions of ABUS TVIP, an indoor security camera, are affected: 

 * ABUS TVIP: 20000-21150


3.2 VULNERABILITY OVERVIEW

3.2.1 COMMAND INJECTION CWE-77(link is external)

ABUS TVIP 20000-21150 devices allows remote attackers to execute arbitrary code
via shell metacharacters in the /cgi-bin/mft/wireless_mft ap field.

CVE-2023-26609 has been assigned to this vulnerability. A CVSS v3 base score of
7.2 has been calculated; the CVSS vector string is
(AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H(link is external)).


3.3 BACKGROUND

 * CRITICAL INFRASTRUCTURE SECTORS: Comercial Facilities

 * COUNTRIES/AREAS DEPLOYED: Worldwide

 * COMPANY HEADQUARTERS LOCATION: Germany


3.4 RESEARCHER

The Chaos Computer Club (CCC) reported this vulnerability to ABUS.


4. MITIGATIONS

In 2019, ABUS conducted a replacement campaign to encourage users to replace the
affected devices with newer models such as TVIP82561.

CISA 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 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.

Public exploits specifically target this vulnerability. This vulnerability is
exploitable remotely. This vulnerability has low attack complexity.

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


PLEASE SHARE YOUR THOUGHTS

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


RELATED ADVISORIES

Jul 06, 2023
ICS Advisory | ICSA-23-187-01


PIIGAB M-BUS

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


SCHNEIDER ELECTRIC ECOSTRUXURE OPERATOR TERMINAL EXPERT

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


OVARRO TBOX RTUS

Jun 29, 2023
ICS Advisory | ICSA-23-180-01


DELTA ELECTRONICS INFRASUITE DEVICE MASTER

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