1. EXECUTIVE SUMMARY
- CVSS v3 9.8
- ATTENTION: Exploitable remotely/Low attack complexity
- Vendor: Voltronic Power
- Equipment: ViewPower Pro
- Vulnerabilities: Deserialization of Untrusted Data, Missing Authentication for Critical Function, Exposed Dangerous Method or Function, OS Command Injection
2. RISK EVALUATION
Successful exploitation of these vulnerabilities could allow an attacker to create a denial-of-service condition, obtain administrator credentials, or achieve remote code execution.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of ViewPower Pro, an Uninterruptable Power Supply (UPS) management software, are affected:
- ViewPower Pro: 2.0-22165
3.2 Vulnerability Overview
3.2.1 DESERIALIZATION OF UNTRUSTED DATA CWE-502
The affected product deserializes untrusted data without sufficiently verifying the resulting data will be valid.
CVE-2023-51570 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
3.2.2 MISSING AUTHENTICATION FOR CRITICAL FUNCTION CWE-306
When a specific service of the affected product receives a certain message from an unauthenticated user, that process may stop.
CVE-2023-51571 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
3.2.3 IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN AN OS COMMAND (‘OS COMMAND INJECTION’) CWE-78
The affected product is vulnerable to an OS command injection, which may allow remote code execution on the underlying operating system.
CVE-2023-51572 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
3.2.4 EXPOSED DANGEROUS METHOD OR FUNCTION CWE-749
The affected product allows an unauthenticated user to invoke a method that may modify the administrator account password.
CVE-2023-51573 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
3.3 BACKGROUND
- CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing
- COUNTRIES/AREAS DEPLOYED: Worldwide
- COMPANY HEADQUARTERS LOCATION: United States
3.4 RESEARCHER
Simon Janz (@esj4y) of Trend Micro’s Zero Day Initiative reported these vulnerabilities to CISA.
4. MITIGATIONS
Voltronic Power did not respond to CISA’s attempts at coordination. Users of Voltronic Power products are encouraged to contact Voltronic Power and keep their systems up to date.
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
- January 23, 2024: Initial Publication
