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1. EXECUTIVE SUMMARY

CVSS v4 8.7
ATTENTION: Exploitable remotely/low attack complexity
Vendor: iniNet Solutions GmbH
Equipment: SpiderControl SCADA Web Server
Vulnerabilities: Unrestricted Upload of File with Dangerous Type

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to log in or execute arbitrary code.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of SpiderControl, an HMI program, are affected:

SpiderControl SCADA Web Server: Versions v2.09 and prior

3.2 Vulnerability Overview

3.2.1 Unrestricted Upload of File with Dangerous Type CWE-434

SpiderControl SCADA Web Server has a vulnerability that could allow an attacker to upload specially crafted malicious files without authentication.

CVE-2024-8232 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.5 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N).

A CVSS v4 score has also been calculated for CVE-2024-8232. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N).

3.3 BACKGROUND

CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing
COUNTRIES/AREAS DEPLOYED: Worldwide
COMPANY HEADQUARTERS LOCATION: Switzerland

3.4 RESEARCHER

elcazators ELEX FEIGONG RESEARCH INSTITUTE of Elex CyberSecurity, Inc reported this vulnerability to CERT/CC.

4. MITIGATIONS

IniNet Solutions has released a new version of SpiderControl SCADA Server, (3.2.2), to address this issue. It can be found at the following location: https://spidercontrol.net/download/download-area-2/?lang=en

IniNet Solutions reminds users that the webserver is designed to be used in a protected environment. IniNet Solutions GmbH recommends that users never connect control system software directly to the Internet. If a user must connect to the Internet, IniNet Solutions GmbH recommends using a managed infrastructure to do so.

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.

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

5. UPDATE HISTORY

September 10, 2024: Initial Publication