CVE-2023-38005 Overview
IBM Cloud Pak System versions 2.3.3.6, 2.3.3.7, 2.3.4.0, 2.3.4.1, and 2.3.5.0 contain an improper access control vulnerability (CWE-284) that could allow an authenticated user to perform unauthorized tasks. This broken access control issue enables users with legitimate credentials to execute actions beyond their intended privilege level.
Critical Impact
Authenticated users can bypass access controls to perform unauthorized administrative or privileged tasks within IBM Cloud Pak System environments, potentially compromising system integrity.
Affected Products
- IBM Cloud Pak System 2.3.3.6
- IBM Cloud Pak System 2.3.3.7
- IBM Cloud Pak System 2.3.4.0
- IBM Cloud Pak System 2.3.4.1
- IBM Cloud Pak System 2.3.5.0
Discovery Timeline
- 2026-02-17 - CVE-2023-38005 published to NVD
- 2026-02-18 - Last updated in NVD database
Technical Details for CVE-2023-38005
Vulnerability Analysis
This vulnerability stems from improper access control mechanisms within IBM Cloud Pak System. The flaw allows authenticated users to exceed their assigned permissions and execute tasks that should be restricted to higher-privileged accounts. The network-accessible nature of the vulnerability means that any authenticated user with network access to the IBM Cloud Pak System can potentially exploit this weakness.
The impact is primarily on system integrity, as attackers could modify configurations, data, or system state without proper authorization. While the vulnerability requires authentication (ruling out anonymous exploitation), it presents a significant risk in multi-tenant or shared environments where different users should have segregated access levels.
Root Cause
The root cause is classified under CWE-284 (Improper Access Control), indicating that the application fails to properly restrict or enforce access permissions. This typically occurs when authorization checks are missing, incomplete, or incorrectly implemented in the application's access control logic. In the context of IBM Cloud Pak System, the access control mechanisms do not adequately verify whether an authenticated user has the appropriate permissions before allowing certain operations to proceed.
Attack Vector
The attack vector is network-based and requires an authenticated session. An attacker must first obtain valid credentials (either through legitimate access, social engineering, or credential theft) to exploit this vulnerability. Once authenticated, the attacker can leverage the improper access controls to perform tasks that exceed their intended authorization level.
The attack requires no user interaction and has low complexity, meaning that once an attacker has authenticated access, exploitation is straightforward. The scope is unchanged, indicating the vulnerability impacts only the vulnerable component itself without crossing security boundaries.
The exploitation flow typically involves:
- Authenticating to IBM Cloud Pak System with valid but low-privilege credentials
- Identifying administrative or restricted functionality that lacks proper authorization checks
- Directly accessing or invoking these restricted functions to perform unauthorized operations
Detection Methods for CVE-2023-38005
Indicators of Compromise
- Unusual administrative actions performed by non-administrative user accounts
- Unexpected modifications to system configurations by standard users
- Audit logs showing privilege escalation patterns or unauthorized task execution
- Access to restricted API endpoints or management interfaces from unexpected user accounts
Detection Strategies
- Enable comprehensive audit logging for all user actions within IBM Cloud Pak System
- Implement behavioral analytics to detect users performing actions outside their normal role patterns
- Monitor for access attempts to administrative functions from non-administrator accounts
- Deploy SentinelOne Singularity to detect anomalous process behaviors and unauthorized system modifications
Monitoring Recommendations
- Review IBM Cloud Pak System access logs regularly for authorization bypass attempts
- Configure SIEM alerts for privilege escalation indicators and unusual access patterns
- Implement role-based access monitoring to track deviations from expected user behavior
- Monitor network traffic to IBM Cloud Pak System management interfaces for suspicious activity
How to Mitigate CVE-2023-38005
Immediate Actions Required
- Review and update IBM Cloud Pak System to a patched version as recommended by IBM
- Audit all user accounts and ensure proper role-based access control assignments
- Enable enhanced logging and monitoring for the affected IBM Cloud Pak System instances
- Implement network segmentation to limit access to management interfaces
Patch Information
IBM has released security guidance for this vulnerability. Organizations should consult the IBM Support Page Advisory for detailed patch information and upgrade instructions. Apply the recommended updates to all affected IBM Cloud Pak System versions (2.3.3.6, 2.3.3.7, 2.3.4.0, 2.3.4.1, and 2.3.5.0).
Workarounds
- Implement strict network access controls to limit who can reach IBM Cloud Pak System
- Review and minimize user privileges following the principle of least privilege
- Deploy additional authentication layers such as multi-factor authentication for administrative access
- Consider implementing a web application firewall (WAF) to monitor and filter requests to the platform
# Review current user role assignments in IBM Cloud Pak System
# Ensure least privilege principle is applied to all accounts
# Restrict administrative access to essential personnel only
# Enable audit logging for all management operations
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
