CVE-2021-40339 in LinkOne
Summary
by MITRE • 01/28/2022
Configuration vulnerability in Hitachi Energy LinkOne application due to the lack of HTTP Headers, allows an attacker that manages to exploit this vulnerability to retrieve sensitive information. This issue affects: Hitachi Energy LinkOne 3.20; 3.22; 3.23; 3.24; 3.25; 3.26.
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Analysis
by VulDB Data Team • 02/02/2022
The CVE-2021-40339 vulnerability represents a critical configuration flaw within the Hitachi Energy LinkOne application suite, specifically impacting versions 3.20 through 3.26. This vulnerability stems from the absence of essential HTTP headers that should be implemented to protect sensitive data transmission and application security. The flaw creates an exploitable condition where unauthorized actors can potentially access confidential information through manipulated HTTP requests, undermining the security posture of industrial control systems that rely on this platform for operational monitoring and management. The vulnerability manifests in the application's failure to implement proper security headers that would normally prevent information leakage and cross-site scripting attacks, making it particularly concerning for industrial environments where system integrity and data confidentiality are paramount.
The technical implementation of this vulnerability involves the omission of critical HTTP security headers such as Content Security Policy, X-Content-Type-Options, X-Frame-Options, and other protective measures that should be automatically enforced by the application server. Without these headers, the application becomes susceptible to information disclosure attacks where attackers can extract sensitive data through various means including response manipulation, header inspection, and potentially cross-site scripting vector exploitation. The vulnerability operates at the application layer and can be exploited through standard web application penetration testing methodologies, making it particularly dangerous as it requires minimal specialized knowledge to exploit once an attacker has gained initial access to the system. This configuration oversight creates a fundamental weakness in the security architecture that bypasses normal application-level protections and allows for unauthorized data retrieval.
The operational impact of CVE-2021-40339 extends beyond simple information disclosure, as it represents a significant risk to industrial control system security within energy infrastructure environments. Organizations utilizing Hitachi Energy LinkOne applications face potential exposure of operational data, system configurations, and potentially sensitive operational parameters that could be leveraged for more sophisticated attacks. The vulnerability affects multiple versions of the application, indicating a widespread issue that would require coordinated patching efforts across various system deployments. This type of vulnerability aligns with CWE-693, which describes inadequate protection mechanisms, and could potentially be categorized under ATT&CK technique T1071.004 for application layer protocol manipulation. The impact is particularly severe in industrial settings where these applications often interface with critical infrastructure systems and where information leakage could compromise operational security or enable further attack vectors.
Mitigation strategies for CVE-2021-40339 should focus on immediate implementation of proper HTTP security headers across all affected versions of the Hitachi Energy LinkOne application. Organizations must ensure that Content Security Policy headers are implemented to prevent cross-site scripting attacks, X-Content-Type-Options headers are configured to prevent MIME type sniffing, and X-Frame-Options headers are set to prevent clickjacking attacks. Additionally, system administrators should conduct comprehensive security audits to verify that all HTTP responses include appropriate security headers and that the application configuration aligns with industry best practices for industrial control systems. The vulnerability highlights the importance of maintaining robust security configurations in industrial environments and demonstrates how seemingly minor configuration oversights can create significant security risks. Organizations should also implement network segmentation and access controls to limit exposure of the affected applications and establish monitoring procedures to detect potential exploitation attempts. This vulnerability underscores the critical need for regular security assessments and proper configuration management in industrial control systems, as outlined in various cybersecurity frameworks and standards including NIST SP 800-82 for industrial control systems security.