CVE-2025-14917: IBM WebSphere Liberty Auth Bypass Flaw

CVE-2025-14917 Overview

IBM WebSphere Application Server - Liberty versions 17.0.0.3 through 26.0.0.3 contain a security configuration weakness that could provide weaker than expected security when administering security settings. This vulnerability allows a local attacker with high privileges to potentially compromise system confidentiality, integrity, and availability through inadequate security enforcement mechanisms.

Critical Impact

Local attackers with elevated privileges could exploit weakened security settings to gain unauthorized access or compromise system integrity on affected IBM WebSphere Application Server Liberty installations.

Affected Products

• IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.3

Discovery Timeline

• 2026-03-25 - CVE CVE-2025-14917 published to NVD
• 2026-03-26 - Last updated in NVD database

Technical Details for CVE-2025-14917

Vulnerability Analysis

This vulnerability is classified under CWE-1393 (Use of Default Password), indicating a security misconfiguration issue within the IBM WebSphere Application Server Liberty platform. The flaw manifests when administering security settings, where the application server may enforce weaker security controls than administrators expect or intend.

The vulnerability requires local access to the system and high-level privileges to exploit, which limits the attack surface but increases the potential impact once exploited. An attacker who successfully exploits this weakness could affect system confidentiality by accessing sensitive data, compromise integrity by modifying protected resources, and impact availability through unauthorized administrative actions.

Root Cause

The root cause stems from improper security configuration handling within the WebSphere Application Server Liberty administrative interface. When security settings are configured, the application may apply default or weakened security policies rather than the intended strict security controls. This behavior falls under CWE-1393, where default or weak authentication mechanisms are inadvertently applied.

Attack Vector

The attack vector for CVE-2025-14917 requires local access to the affected system. An attacker must have high-level privileges on the target machine to exploit this vulnerability. The attack does not require user interaction, making it suitable for automated exploitation once initial access is obtained.

The exploitation scenario involves a privileged local user leveraging the weakened security settings to perform actions that should be restricted. Since the security configuration does not enforce expected controls, the attacker can potentially escalate their access or manipulate protected resources beyond their authorized scope.

Detection Methods for CVE-2025-14917

Indicators of Compromise

• Unexpected changes to WebSphere Application Server Liberty security configuration files
• Anomalous administrative access patterns from local accounts
• Security audit logs showing configuration modifications outside of maintenance windows
• Discrepancies between intended security policies and actual enforced settings

Detection Strategies

• Review WebSphere Application Server Liberty security configuration logs for unauthorized modifications
• Implement file integrity monitoring on server.xml and related security configuration files
• Audit local privileged account activities on systems hosting WebSphere Application Server Liberty
• Compare current security settings against documented baseline configurations

Monitoring Recommendations

• Enable verbose security logging for administrative actions within WebSphere Application Server Liberty
• Configure alerts for any modifications to security-related configuration parameters
• Monitor for privilege escalation attempts by local users on affected servers
• Implement continuous configuration compliance checking against security benchmarks

How to Mitigate CVE-2025-14917

Immediate Actions Required

• Review current IBM WebSphere Application Server Liberty installations for affected versions (17.0.0.3 through 26.0.0.3)
• Restrict local administrative access to WebSphere Application Server Liberty instances to essential personnel only
• Audit and verify all security configuration settings to ensure they match intended policies
• Apply the security update from IBM as soon as available

Patch Information

IBM has released security guidance for this vulnerability. Refer to the IBM Support Page for official patch information and remediation instructions. Administrators should update to a patched version of IBM WebSphere Application Server Liberty that addresses CVE-2025-14917.

Workarounds

• Implement strict access controls limiting local administrative access to WebSphere Application Server Liberty hosts
• Manually verify and harden all security configurations after any administrative changes
• Enable comprehensive security auditing to detect any unauthorized configuration modifications
• Consider network segmentation to isolate WebSphere Application Server Liberty instances from general user access

# Configuration example - Verify WebSphere Liberty security configuration
# Check server.xml for security settings
cat /opt/ibm/wlp/usr/servers/defaultServer/server.xml | grep -A 10 "<security"

# Enable security auditing (add to server.xml)
# <featureManager>
#     <feature>audit-1.0</feature>
# </featureManager>