CVE-2025-33088 Overview
IBM Concert versions 1.0.0 through 2.1.0 contain a local privilege escalation vulnerability caused by incorrect file permissions for critical resources. A local user with specific knowledge about the system's architecture could exploit this misconfiguration to escalate their privileges on affected systems.
Critical Impact
Local attackers can leverage incorrect file permissions to gain elevated privileges, potentially compromising system confidentiality, integrity, and availability.
Affected Products
- IBM Concert 1.0.0 through 2.1.0
- Linux Kernel (underlying platform)
Discovery Timeline
- 2026-02-17 - CVE-2025-33088 published to NVD
- 2026-02-18 - Last updated in NVD database
Technical Details for CVE-2025-33088
Vulnerability Analysis
This vulnerability is classified under CWE-732 (Incorrect Permission Assignment for Critical Resource). The flaw exists within IBM Concert's file permission handling, where critical system resources are not adequately protected with appropriate access controls. An attacker with local access to the system and knowledge of the application's architecture can exploit these weak permissions to escalate their privileges.
The attack requires local access and high complexity to execute, as the attacker needs specific knowledge about the target system's architecture. However, no privileges or user interaction are required to initiate the attack. Successful exploitation leads to a complete compromise of confidentiality, integrity, and availability of the affected system.
Root Cause
The root cause of this vulnerability is improper permission assignment for critical resources within IBM Concert. The application fails to properly restrict access to sensitive files and directories, allowing unprivileged local users to read, modify, or execute files that should be protected. This misconfiguration can be leveraged to gain unauthorized access to elevated privileges.
Attack Vector
The attack vector is local, meaning an attacker must have access to the target system to exploit this vulnerability. The attacker would need to:
- Gain local access to a system running a vulnerable version of IBM Concert
- Identify critical resources with incorrect file permissions
- Leverage knowledge of the system architecture to manipulate these resources
- Escalate privileges through the misconfigured permissions
The high attack complexity indicates that specific system knowledge and conditions are required for successful exploitation. The vulnerability affects the local system scope without impacting other components.
Detection Methods for CVE-2025-33088
Indicators of Compromise
- Unexpected permission changes on IBM Concert configuration files or directories
- Unauthorized file access or modification attempts in IBM Concert installation paths
- Anomalous privilege elevation events originating from local users
- Suspicious process execution with elevated privileges tied to IBM Concert components
Detection Strategies
- Monitor file permission changes on critical IBM Concert resources using file integrity monitoring (FIM) tools
- Implement audit logging for privileged operations within IBM Concert directories
- Deploy endpoint detection and response (EDR) solutions to detect privilege escalation attempts
- Review system logs for unauthorized access attempts to protected resources
Monitoring Recommendations
- Enable detailed audit logging for file system operations on IBM Concert installation directories
- Configure alerts for permission modifications on critical system resources
- Implement user behavior analytics to detect anomalous local access patterns
- Regularly scan for incorrect file permissions using automated compliance tools
How to Mitigate CVE-2025-33088
Immediate Actions Required
- Review and remediate file permissions for all IBM Concert critical resources
- Apply the latest security patches from IBM as soon as available
- Restrict local system access to authorized personnel only
- Implement least privilege principles for all user accounts accessing IBM Concert systems
Patch Information
IBM has released security guidance for this vulnerability. System administrators should consult the IBM Support Page for detailed remediation instructions and patch availability.
Affected versions include IBM Concert 1.0.0 through 2.1.0. Organizations should upgrade to a patched version as recommended by IBM.
Workarounds
- Manually audit and correct file permissions on IBM Concert installation directories
- Implement additional access controls using operating system security features
- Restrict local user access to systems running vulnerable IBM Concert versions
- Deploy application whitelisting to prevent unauthorized privilege escalation attempts
# Example: Audit file permissions in IBM Concert directories
# Review permissions on critical resources
find /opt/ibm/concert -type f -perm /o+w -ls
# Restrict write permissions on critical configuration files
chmod 640 /opt/ibm/concert/config/*
chown root:concert /opt/ibm/concert/config/*
# Review and restrict directory permissions
chmod 750 /opt/ibm/concert/
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
