ESB-2018.1267 - [Appliance] Vecna VGo Robot: Multiple vulnerabilities 2018-04-26

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.1267
                 Advisory (ICSA-18-114-01) Vecna VGo Robot
                               26 April 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Vecna VGo Robot
Publisher:         ICS-CERT
Operating System:  Network Appliance
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Access Privileged Data          -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-8866 CVE-2018-8860 

Original Bulletin: 
   https://ics-cert.us-cert.gov/advisories/ICSA-18-114-01

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Advisory (ICSA-18-114-01)

Vecna VGo Robot

Original release date: April 24, 2018

Legal Notice

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"as is" for informational purposes only. The Department of Homeland Security
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referenced in this product or otherwise. Further dissemination of this
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1. EXECUTIVE SUMMARY

    CVSS v3 8.8
    ATTENTION: Exploitable from an adjacent network/low skill level
    to exploit
    Vendor: Vecna Technologies, Inc. (Vecna)
    Equipment: VGo Robot
    Vulnerabilities: OS Command Injection, Cleartext Transmission of
    Sensitive Information

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow an attacker
to capture firmware updates through network traffic and could allow remote
code execution on the VGo Robot, a mobile robotic assistant.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

Vecna reports that the vulnerabilities affect the following product:

    VGo Robot: All versions prior to 3.0.3.52164

3.2 VULNERABILITY OVERVIEW

3.2.1   IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN AN OS COMMAND
('OS COMMAND INJECTION') CWE-78

An attacker on an adjacent network could perform command injection.

CVE-2018-8866 has been assigned to this vulnerability. A CVSS v3
base score of 8.8 has been calculated; the CVSS vector string is
(AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

3.2.2   CLEAR TRANSMISSION OF SENSITIVE INFORMATION CWE-319

An attacker may be able to capture firmware updates through the adjacent
network.

CVE-2018-8860 has been assigned to this vulnerability. A CVSS v3
base score of 6.5 has been calculated; the CVSS vector string is
(AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

3.3 BACKGROUND

    Critical Infrastructure Sectors: Communications
    Countries/Areas Deployed: Worldwide
    Company Headquarters Location: United States

3.4 RESEARCHER

Dan Regalado from Zingbox reported this vulnerability to NCCIC.

4. MITIGATIONS

Vecna has released a recommended update to mitigate the
vulnerabilities. Vecna recommends the following update process:

    By default, VGo has automatic updates enabled so all updates are
    performed automatically when Internet access is available. If the VGo
    is powered off or in use, a message will appear on the screen asking
    if it can be updated when the VGo is next used.
    If a VGo unit has automatic updates turned off, the update will not
    be downloaded (however, a notice about the update will be displayed
    on the VGo's screen). Vecna recommends that automatic updates be
    turned on. Select "settings" from the main menu then "advanced
    settings" then "automatic updates."

NCCIC recommends that users take the following measures to protect themselves
from social engineering attacks:

    Do not click web links or open unsolicited attachments in 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.

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 in the ICS-CERT Technical Information Paper,
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation
Strategies, that is available for download from the ICS-CERT website.

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 these vulnerabilities.

Contact Information

For any questions related to this report, please contact the NCCIC at:

Email: NCCICCUSTOMERSERVICE@hq.dhs.gov
Toll Free: 1-888-282-0870

For industrial control systems cybersecurity information:
http://ics-cert.us-cert.gov
or incident reporting:  https://ics-cert.us-cert.gov/Report-Incident?

The NCCIC 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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