Description

Improper Control of Generation of Code ('Code Injection') vulnerability in Klemsan Electrical Electronics Inc. KIO (Klemsan Internet Objects) allows Code Injection. This issue affects KIO (Klemsan Internet Objects): before v1.9.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "9.8",
  "pubDate": "2026-09-01T14:17:26.297Z",
  "pubdate": "2026-09-01T14:17:26.297Z",
  "executiveSummary": "The Klemsan Electrical Electronics Inc. KIO (Klemsan Internet Objects) platform, specifically versions prior to 1.9, contains a critical vulnerability categorized as Improper Control of Generation of Code (CWE-94: Code Injection).\nThis vulnerability allows an unauthenticated or authenticated attacker to inject and execute arbitrary code within the context of the KIO application. By manipulating input vectors that are improperly sanitized or validated before being processed by the system's code generation or execution engine, an attacker can influence the control flow of the application.\nThe potential impact of this flaw is severe, potentially resulting in full system compromise, unauthorized data access, and persistent backdoors within the industrial IoT environment. Given the nature of KIO as a management platform for electrical electronics objects, successful exploitation could lead to the degradation of industrial control processes, loss of operational visibility, or remote command execution on host hardware.\nOrganizations utilizing KIO versions below 1.9 are at significant risk of unauthorized access and remote exploitation. Immediate updates or the implementation of compensating security controls are recommended to mitigate the exposure.",
  "technicalDetails": "The vulnerability originates from the failure of the KIO application to strictly validate or sanitize user-supplied data before passing it to functions responsible for dynamic code generation or interpreter execution. In the context of CWE-94, the application's underlying architecture allows input strings to be interpreted as executable instructions rather than strictly data-only literals.\nThe root cause is likely an insecure implementation of input handling mechanisms where unsanitized variables are concatenated into strings or passed as arguments to underlying system calls, server-side scripts, or dynamic evaluation functions (e.g., eval(), exec(), or template engine rendering engines).\nAn attack flow typically begins with the identification of an exposed entry point, such as a configuration input field, API parameter, or web interface form that the KIO application processes. An attacker can submit specially crafted malicious payloads—such as shell commands, scripts, or serialized objects—designed to escape the intended data context and transition into a command execution state.\nOnce the payload reaches the vulnerable component, the application executes the injected instructions with the privileges of the service account running the KIO process. This lack of logical separation between data input and executable code paths enables an attacker to perform unauthorized operations, including but not limited to, reading sensitive system files, modifying internal configurations, or exfiltrating data stored in the KIO database.\nBecause the vulnerability exists in versions before 1.9, the absence of robust input validation routines suggests that the vulnerability may be systemic across multiple modules that interface with user input. Exploitation does not require high-level privileges if the input vector is reachable via a public-facing network interface, allowing for remote exploitation without prior authentication in some deployment scenarios. The post-exploitation behavior is limited only by the permissions of the application process; in many IoT/industrial environments, this often includes broad access to the underlying operating system and connected electrical monitoring hardware.\nThe combination of insufficient input filtering and the dangerous execution of untrusted code provides a significant attack surface, enabling persistent threats to gain a foothold and maintain a high level of control over the affected KIO platform."
}