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1. EXECUTIVE SUMMARY

CVSS v4 6.9
ATTENTION: Exploitable remotely/low attack complexity
Vendor: Dorsett Controls
Equipment: InfoScan
Vulnerabilities: Exposure of Sensitive Information To An Unauthorized Actor, Path Traversal

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow an attacker to expose sensitive information, resulting in data theft and misuse of credentials.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following Dorsett Controls products are affected:

InfoScan: v1.32, v1.33, and v1.35

3.2 Vulnerability Overview

3.2.1 EXPOSURE OF SENSITIVE INFORMATION TO AN UNAUTHORIZED ACTOR CWE-200

Dorsett Controls InfoScan is vulnerable due to a leak of possible sensitive information through the response headers and the rendered JavaScript prior to user login.

CVE-2024-42493 has been assigned to this vulnerability. A CVSS v3.1 base score of 5.3 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

A CVSS v4 score has also been calculated for CVE-2024-42493. A base score of 6.9 has been calculated; the CVSS vector string is (CVSS4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N).

3.2.2 IMPROPER LIMITATION OF A PATHNAME TO A RESTRICTED DIRECTORY (‘PATH TRAVERSAL’) CWE-22

The InfoScan client download page can be intercepted with a proxy, to expose filenames located on the system, which could lead to additional information exposure.

CVE-2024-42408 has been assigned to this vulnerability. A CVSS v3.1 base score of 5.3 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

A CVSS v4 score has also been calculated for CVE-2024-42408. A base score of 6.9 has been calculated; the CVSS vector string is (CVSS4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N).

3.2.3 EXPOSURE OF SENSITIVE INFORMATION TO AN UNAUTHORIZED ACTOR CWE-200

Dorsett Controls Central Server update server has potential information leaks with an unprotected file that contains passwords and API keys.

CVE-2024-39287 has been assigned to this vulnerability. A CVSS v3.1 base score of 5.3 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

A CVSS v4 score has also been calculated for CVE-2024-39287. A base score of 6.9 has been calculated; the CVSS vector string is (CVSS4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N).

3.3 BACKGROUND

CRITICAL INFRASTRUCTURE SECTORS: Water and Wastewater Systems
COUNTRIES/AREAS DEPLOYED: United States
COMPANY HEADQUARTERS LOCATION: United States

3.4 RESEARCHER

An anonymous researcher reported these vulnerabilities to CISA.

4. MITIGATIONS

Dorsett Controls recommends users update their InfoScan system v1.38 or later.

To install the new release, user administrators will need to:

login to InfoScan and select “System Prefs” from the menu.
Once the System Prefs application is open, select Maintenance.
Click the Install Now button in the Ready To Install section.
If no internet access available, the update will need to be downloaded from the Dorsett Controls Customer Portal by selecting the InfoScan Update tile. Download the update and following the instructions listed on the portal.

For more information, please refer to the Dorsett Controls security bulletin for more information.

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 these vulnerabilities has been reported to CISA at this time.

5. UPDATE HISTORY

August 8, 2024: Initial Publication