CVE-2026-84245 in Guardium Data Protection
Summary
by MITRE • 10/08/2026
IBM Guardium Data Protection 12.2 is vulnerable to a local privilege escalation in the cp_wrapper component. A low-privileged local user could exploit this vulnerability to gain root privileges and access or modify sensitive system files.
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Analysis
by VulDB Data Team • 10/08/2026
The IBM Guardium Data Protection version 12.2 contains a critical security flaw within its cp_wrapper component that allows for local privilege escalation. This vulnerability stems from an improper handling of file copy operations, specifically where the wrapper fails to adequately validate or restrict access controls during the execution of privileged commands. The core technical issue lies in the mechanism used by the cp_wrapper utility to manage file transfers and permissions. When a user initiates a copy operation through this component, the underlying system calls may inherit elevated privileges without sufficient checks on the source or destination paths. This oversight creates an opportunity for attackers with low-level access to manipulate these operations, effectively bypassing standard permission boundaries that are designed to isolate unprivileged users from sensitive areas of the operating system.
From a technical perspective, this flaw aligns closely with CWE-269, which describes Improper Privilege Management. The vulnerability allows a non-administrative user to execute actions that require root-level authority due to misconfigured access controls or insecure default permissions within the cp_wrapper script or binary. By exploiting specific file path conditions or race conditions during the copy process, an attacker can trick the system into applying elevated privileges to files under their control or executing commands with higher security contexts than intended. This type of flaw is particularly dangerous because it does not require network exposure; it relies solely on local access, which makes detection and prevention more challenging for organizations that do not strictly monitor all user activities at the endpoint level.
The operational impact of this vulnerability is severe, as successful exploitation grants an attacker full root privileges on the affected system. With root access, a malicious actor can read, modify, or delete any file on the system, including configuration files, logs, and other critical data protected by IBM Guardium Data Protection itself. This undermines the primary function of the software, which is to monitor and protect sensitive data from unauthorized access. An attacker could potentially disable security logging, alter audit trails to cover their tracks, install persistent backdoors, or pivot to attack other systems within the network using the compromised host as a foothold. The ability to modify system files also means that standard integrity checks may fail to detect subsequent malicious activities if those tools are tampered with during the privilege escalation phase.
To mitigate this risk, organizations should immediately apply the latest security patches provided by IBM for Guardium Data Protection version 12.2. It is essential to verify that all instances of the cp_wrapper component have been updated to versions where these permission checks have been hardened. In addition to patching, administrators should enforce strict least-privilege principles across the environment, ensuring that users do not possess unnecessary local administrative rights unless absolutely required for their job functions. Implementing robust endpoint detection and response solutions can help identify unusual privilege escalation attempts or suspicious file modification patterns associated with this vulnerability. Regular auditing of user permissions and monitoring system logs for anomalies related to cp_wrapper execution will further reduce the attack surface and improve overall security posture against such local exploitation techniques.