ESB-2017.2269 - [Win] SpiderControl SCADA Web Server: Execute arbitrary code/commands - Existing account 2017-09-08

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2269
   A vulnerability has been identified in SpiderControl SCADA Web Server
                             8 September 2017

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

Product:           SpiderControl SCADA Web Server
Publisher:         ICS-CERT
Operating System:  Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
                   Increased Privileges            -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-12728  

Original Bulletin: 
   https://ics-cert.us-cert.gov/advisories/ICSA-17-250-01

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Advisory (ICSA-17-250-01)

SpiderControl SCADA Web Server

Original release date: September 07, 2017

Legal Notice

All information products included in http://ics-cert.us-cert.gov 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 http://www.us-cert.gov/tlp/.

CVSS v3 5.3

ATTENTION: Low skill level to exploit

Vendor: SpiderControl

Equipment: SCADA Web Server

Vulnerability: Improper Privilege Management

AFFECTED PRODUCTS

The following versions of SCADA Web Server, a software management platform, 
are affected:

SCADA Web Server Version 2.02.0007 and prior.

IMPACT

Successful exploitation of this vulnerability could allow authenticated system
users to escalate their privileges under certain conditions.

MITIGATION

SpiderControl has produced a new version of the software (Version 2.02.0100) 
that can be found at the following link. A login is required to view the 
download.

http://spidercontrol.net/downloads-support/user-downloads/

NCCIC/ICS-CERT recommends that users take defensive measures to minimize the 
risk of exploitation of this vulnerability.

ICS-CERT reminds organizations to perform proper impact analysis and risk 
assessment prior to deploying defensive measures.

ICS-CERT 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 web site.

Organizations observing any suspected malicious activity should follow their 
established internal procedures and report their findings to ICS-CERT for 
tracking and correlation against other incidents.

In addition, ICS-CERT 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.

No known public exploits specifically target this vulnerability. This 
vulnerability is not remotely exploitable.

VULNERABILITY OVERVIEW

IMPROPER PRIVILEGE MANAGEMENT CWE-269

Authenticated, non-administrative local users are able to alter service 
executables with escalated privileges which could allow an attacker to execute
arbitrary code under the context of the current system services.

CVE-2017-12728 has been assigned to this vulnerability. A CVSS v3 base score 
of 5.3 has been assigned; the CVSS vector string is 
(AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).

RESEARCHER

Karn Ganeshen reported this vulnerability to ICS-CERT.

BACKGROUND

Critical Infrastructure Sector: Critical Manufacturing

Countries/Areas Deployed: Europe

Company Headquarters Location: Switzerland

Contact Information

For any questions related to this report, please contact ICS-CERT at:

Email: ics-cert@hq.dhs.gov

Toll Free: 1-877-776-7585

International Callers: (208) 526-0900

For industrial control systems security information and incident reporting: 
http://ics-cert.us-cert.gov

ICS-CERT 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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