CVE-2026-84882 in Guardium Data Protection
Summary
by MITRE • 09/25/2026
IBM Guardium Data Protection 12.2 is vulnerable to path traversal in the Universal Connector Oracle Wallet upload component. An authenticated remote attacker could exploit this vulnerability to write arbitrary files to the system.
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Analysis
by VulDB Data Team • 09/25/2026
The IBM Guardium Data Protection version 12.2 contains a critical security flaw within its Universal Connector Oracle Wallet upload functionality, classified as a path traversal vulnerability. This specific weakness allows an authenticated remote attacker to manipulate file input parameters in order to write arbitrary files to the underlying operating system's filesystem. The vulnerability stems from insufficient validation of user-supplied input during the process of uploading wallet configuration files. When the application processes these uploads, it fails to properly sanitize directory separators or relative path components such as dot-dot-slash sequences. This lack of rigorous input validation enables an attacker to break out of the intended upload directory and specify file paths in arbitrary locations on the server where the Guardium appliance is deployed.
From a technical perspective, this flaw aligns with CWE-22 Improper Limitation of a Pathname to a Restricted Directory. The core issue lies in the application's failure to enforce strict boundaries around the destination path for uploaded files. In typical secure implementations, any file upload operation should canonicalize the target path and verify that it resides within an allowed sandbox or directory structure. However, in this instance, the Oracle Wallet upload component does not adequately restrict where the written content can be placed. By injecting maliciously crafted filenames containing traversal sequences, an attacker can direct the write operation to sensitive system directories, configuration folders, or web-accessible areas outside of the designated scope. This behavior is a classic example of how improper input handling in file management operations leads to unauthorized filesystem access.
The operational impact of this vulnerability is severe due to its potential for remote code execution and privilege escalation. Since IBM Guardium Data Protection typically runs with elevated privileges to perform deep packet inspection and database auditing tasks, successfully exploiting this path traversal could allow an attacker to place malicious scripts or binaries in locations that are executed by the system or accessible via web interfaces. An adversary might upload a shell script, a PHP backdoor, or modify critical configuration files such as those controlling authentication mechanisms or network settings. This compromise undermines the integrity of the data protection platform itself, potentially allowing the attacker to bypass security controls, exfiltrate sensitive database information that Guardium is designed to protect, or use the compromised appliance as a pivot point for further attacks within the internal network.
This vulnerability maps directly to several techniques in the MITRE ATT&CK framework, specifically T1505 Server Software Component: Web Shell and T1204 User Execution if the uploaded files are subsequently executed by system processes or web servers associated with the Guardium interface. The exploitation requires authentication, which means an attacker must first obtain valid credentials through phishing, credential stuffing, or other initial access vectors before they can leverage this path traversal flaw for deeper compromise. Once authenticated, the ability to write arbitrary files significantly lowers the barrier for achieving persistent access and lateral movement within the environment protected by Guardium.
Mitigation strategies should focus on immediate patching and strict input validation practices. IBM has released updates that address this vulnerability in subsequent versions of Guardium Data Protection; therefore, applying the latest security patches is the primary remediation step. Administrators must ensure that all Universal Connector components are updated to a version where the Oracle Wallet upload logic properly canonicalizes file paths and rejects any input containing traversal sequences or attempting to access directories outside the allowed scope. Additionally, implementing defense-in-depth measures such as restricting outbound connections from the Guardium appliance, enforcing least-privilege principles for service accounts, and monitoring filesystem write operations can help detect exploitation attempts. Regular audits of uploaded files and strict adherence to secure coding standards that mandate validation against CWE-22 are essential to prevent similar issues in future software updates.