CVE-2024-4872 Overview
CVE-2024-4872 is a query validation vulnerability affecting Hitachi Energy MicroSCADA Pro/X SYS600, a supervisory control and data acquisition (SCADA) platform used in industrial and utility environments. The flaw allows an authenticated attacker to inject code into persistent data storage through improperly validated queries. Successful exploitation requires valid credentials but yields high impact across confidentiality, integrity, and availability. The vulnerability is classified under [CWE-943] (Improper Neutralization of Special Elements in Data Query Logic).
Critical Impact
An authenticated attacker with network access can inject malicious code into persistent data, potentially compromising SCADA operations, altering control logic, and affecting industrial process integrity.
Affected Products
- Hitachi Energy MicroSCADA Pro SYS600 version 9.4 (including Fixpack 2 HF1 through HF5)
- Hitachi Energy MicroSCADA X SYS600
- Deployments using default query validation configurations in operational technology (OT) networks
Discovery Timeline
- 2024-08-27 - CVE-2024-4872 published to the National Vulnerability Database (NVD)
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2024-4872
Vulnerability Analysis
The vulnerability resides in the query validation logic of MicroSCADA Pro/X SYS600. The product fails to properly neutralize special elements within query strings targeting persistent data stores. An authenticated user can craft queries that break out of the intended data context and inject attacker-controlled code or commands. Because MicroSCADA platforms orchestrate substation automation and industrial control functions, injected content can influence stored configuration or operational data used by downstream logic.
The issue maps to [CWE-943], covering improper neutralization of special elements in data query logic. This class of flaw commonly enables data tampering, privilege escalation within the application, and lateral movement into control processes when the injected payload is later parsed or executed.
Root Cause
The root cause is insufficient input validation and sanitization of query parameters submitted through authenticated interfaces. The product accepts query syntax without enforcing strict grammar, allowlists, or parameterized statements. Attacker-supplied data is concatenated into query structures processed against persistent storage, enabling injection.
Attack Vector
Exploitation requires network access to the SYS600 service and valid low-privilege credentials. The attacker submits crafted queries containing malicious syntax through legitimate application interfaces. Because no user interaction is required and attack complexity is low, any compromised low-tier account within the SCADA management plane can be used to escalate impact.
No public proof-of-concept or exploit code is available for CVE-2024-4872 at this time, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. Refer to the Hitachi Energy Security Advisory for vendor-specific technical details.
Detection Methods for CVE-2024-4872
Indicators of Compromise
- Anomalous query strings containing special characters, comment sequences, or stacked statements submitted to SYS600 endpoints
- Unexpected modifications to persistent configuration, tag, or historian data outside change-management windows
- Authentication events from low-privilege SCADA accounts followed by write operations to control datasets
Detection Strategies
- Enable and review SYS600 audit logs for query patterns that deviate from operator baselines
- Correlate authenticated session activity with unexpected data-store write operations using centralized logging
- Deploy network monitoring on the OT segment to inspect application-layer traffic destined for MicroSCADA services
Monitoring Recommendations
- Forward MicroSCADA application and authentication logs to a SIEM for retention and correlation
- Alert on repeated failed query validations or malformed request signatures against SYS600 hosts
- Track privileged access to SYS600 servers, including remote sessions from engineering workstations and jump hosts
How to Mitigate CVE-2024-4872
Immediate Actions Required
- Apply the fixed version provided in the Hitachi Energy security advisory for MicroSCADA Pro/X SYS600
- Rotate credentials for all SYS600 accounts and enforce least-privilege access on the platform
- Restrict network reachability of SYS600 services to authorized engineering workstations only
Patch Information
Hitachi Energy has published a security advisory with remediation guidance for MicroSCADA Pro SYS600 9.4 and MicroSCADA X SYS600. Consult the Hitachi Energy Security Advisory 8DBD000160 for the specific fixed versions and upgrade instructions applicable to your deployment.
Workarounds
- Segment SYS600 systems on a dedicated OT network zone with strict firewall rules blocking inbound access from IT and untrusted networks
- Enforce multi-factor authentication and strong password policies for all SYS600 user accounts
- Disable unused SYS600 accounts and remove local administrative privileges from operator roles
- Monitor and log all authenticated activity, particularly database or persistent-data operations, until patching is complete
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
