Description

Improper Authentication vulnerability in DIAEnergie allows Authentication Bypass. This issue affects DIAEnergie: before 1.11.00.022.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "9.8",
  "pubDate": "2026-09-24T09:17:08.043Z",
  "pubdate": "2026-09-24T09:17:08.043Z",
  "executiveSummary": "The DIAEnergie industrial energy management software contains an improper authentication vulnerability that permits unauthorized actors to bypass established access control mechanisms.\nThis vulnerability is classified as an authentication bypass issue, enabling remote attackers to circumvent the security authentication layer without providing valid credentials.\nThe flaw affects all versions of DIAEnergie prior to 1.11.00.022.\nSuccessful exploitation grants an attacker unauthorized access to the application, potentially leading to full system compromise, unauthorized configuration changes, or the exfiltration of sensitive energy consumption data.\nGiven that DIAEnergie is typically deployed within critical infrastructure or industrial environments, the risk of unauthorized access is significant, as it may allow an attacker to manipulate energy management processes or gain deeper insight into the target network's operational technology (OT) environment.\nThere are no specific requirements for elevated privileges prior to exploitation, as the vulnerability itself serves as the mechanism for bypassing the authentication gate.",
  "technicalDetails": "The vulnerability resides within the authentication framework of DIAEnergie, where the application fails to properly validate identity assertions or maintain secure session state management.\nThe root cause is identified as an Improper Authentication flaw, likely resulting from logic errors in the credential verification process, insufficient server-side validation of session tokens, or flaws in the handling of authentication headers during the handshake process.\nIn a standard attack flow, an adversary interacts directly with the vulnerable DIAEnergie web-based interface or API endpoints responsible for authentication. By crafting specific, malformed requests or bypassing the validation logic—such as manipulating session parameters or exploiting insecure implementation of authentication protocols—the attacker can convince the application to grant an authenticated session.\nBecause the system incorrectly assumes that the request has satisfied all authentication criteria, it transitions the attacker into an authorized state. This bypass allows the attacker to interact with the application backend, access administrative dashboards, or execute privileged commands that are otherwise protected by access control lists (ACLs).\nThe vulnerable component is the internal authentication module responsible for gating access to protected application functions. Since DIAEnergie is often exposed to the internal network or externally for remote management, the network exposure is significant. An attacker operating from a remote, unauthenticated position can leverage this flaw to gain unauthorized access without prior knowledge of valid user credentials.\nPost-exploitation, the impact is severe. An attacker who has successfully bypassed authentication can perform unauthorized operations, such as modifying energy monitoring configurations, altering historical data, or deploying malicious payloads through administrative interfaces. If the application is integrated into broader OT monitoring systems, this access might be further leveraged to traverse the network or disrupt industrial processes dependent on DIAEnergie data streams.\nThis vulnerability affects all versions of DIAEnergie before 1.11.00.022, indicating a long-standing deficiency in the authentication architecture that was only rectified in the 1.11.00.022 release."
}