Description

IBM Guardium Data Protection 12.2 could allow a remote attacker to bypass security restrictions due to missing authentication for the ChangeTrackerServlet.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "9.9",
  "pubDate": "2026-09-18T20:17:27.103Z",
  "pubdate": "2026-09-18T20:17:27.103Z",
  "executiveSummary": "IBM Guardium Data Protection 12.2 is susceptible to an authentication bypass vulnerability stemming from insufficient access control enforcement.\nThe vulnerability resides within the ChangeTrackerServlet component, which fails to properly validate authentication tokens or session state prior to executing privileged operations.\nThis security flaw allows a remote, unauthenticated attacker to interact directly with the servlet, bypassing standard security restrictions intended to protect the platform's integrity and configuration state.\nThe primary impact involves the unauthorized access to sensitive functionality handled by the ChangeTrackerServlet, potentially leading to unauthorized information disclosure or modification of system configurations.\nThis vulnerability poses a significant risk to organizational data security, as an attacker does not require valid credentials to initiate malicious interactions, effectively lowering the barrier to exploitation.\nSuccessful exploitation could result in the compromise of the platform's data protection workflows, necessitating immediate attention to remediation through vendor-supplied patches or restrictive network controls.",
  "technicalDetails": "The vulnerability is characterized by a missing authentication check within the ChangeTrackerServlet component of IBM Guardium Data Protection version 12.2. In a secure implementation, servlets designed to manage or track sensitive configuration changes must enforce strict session validation and identity verification before processing incoming HTTP requests. In this instance, the ChangeTrackerServlet fails to verify the presence or validity of an authentication cookie or authorization header, treating unauthenticated requests as legitimate commands.\nThe root cause is an improper access control configuration where the servlet's endpoint is improperly mapped or lacks the necessary security constraints within the web application deployment descriptor (web.xml) or associated security filters. Consequently, the application does not perform an authentication handshake, allowing external entities to invoke the servlet's methods remotely via the network.\nAn attack flow typically initiates with a remote attacker identifying the reachable ChangeTrackerServlet endpoint. Since the application fails to validate the requester's identity, the attacker can craft bespoke HTTP GET or POST requests directed at this servlet. By sending these requests, the attacker can interact with the underlying business logic that is ostensibly protected. In the context of a 'ChangeTracker' functionality, this could permit the unauthorized retrieval of audit logs, modification of change tracking parameters, or the triggering of internal state changes that monitor and manage protected data assets.\nBecause the servlet functions operate in the security context of the web application server, any actions performed by an unauthenticated remote attacker via this bypass are executed with the permissions of the service account under which the Guardium process is running. This effectively results in a total loss of confidentiality and integrity regarding the information managed by the servlet. There is no requirement for prior access, specialized privileges, or internal network positioning, as the vulnerability is accessible over the network interface exposed to the application. The absence of an authentication gate removes the requirement for a pre-established session, making the attack highly efficient for automated discovery and exploitation attempts."
}