CVE-2025-5781: Hitachi Ops Center Info Disclosure Flaw

CVE-2025-5781 Overview

CVE-2025-5781 is an Information Exposure vulnerability affecting multiple Hitachi storage management products. This flaw stems from CWE-532 (Insertion of Sensitive Information into Log File), which allows sensitive session data to be improperly logged, enabling potential session hijacking attacks by local attackers with access to log files.

The vulnerability affects Hitachi Ops Center API Configuration Manager, Hitachi Configuration Manager, and Hitachi Device Manager across multiple versions. Organizations relying on these enterprise storage management solutions should evaluate their exposure and apply available patches.

Critical Impact

Local attackers with low privileges can exploit improper logging of sensitive session information to hijack authenticated user sessions, potentially gaining unauthorized access to storage infrastructure management capabilities.

Affected Products

• Hitachi Ops Center API Configuration Manager: versions 10.0.0-00 through 11.0.5-00 (exclusive)
• Hitachi Configuration Manager: versions 8.5.1-00 through 11.0.5-00 (exclusive)
• Hitachi Device Manager: versions 8.4.1-00 through 8.6.5-00 (exclusive)

Discovery Timeline

• 2026-02-25 - CVE-2025-5781 published to NVD
• 2026-02-25 - Last updated in NVD database

Technical Details for CVE-2025-5781

Vulnerability Analysis

This vulnerability is classified under CWE-532 (Insertion of Sensitive Information into Log File), indicating that the affected Hitachi products improperly write sensitive session-related information to log files. When session tokens, authentication credentials, or other session identifiers are logged in plaintext, they become accessible to any user or process with read access to those log files.

The attack requires local access to the affected system, meaning an attacker must already have some level of authenticated access to the host running the vulnerable Hitachi management software. However, the vulnerability has a changed scope, indicating that successful exploitation can affect resources beyond the vulnerable component itself—specifically, it can impact confidentiality and integrity of other systems managed through the hijacked session.

Root Cause

The root cause of CVE-2025-5781 lies in improper logging practices within the Hitachi storage management applications. The software writes sensitive session information to application log files without adequate sanitization or redaction. This represents a violation of secure coding principles that mandate sensitive data like session tokens, credentials, and authentication cookies should never be written to logs in plaintext form.

Attack Vector

The attack vector for this vulnerability requires local access with low privileges. An attacker would typically:

1. Gain local access to a system running one of the affected Hitachi management products
2. Locate and read application log files containing sensitive session information
3. Extract valid session tokens or authentication data from the logs
4. Use the captured session information to impersonate legitimate users
5. Perform unauthorized actions through the hijacked session

Since no verified code examples are available, the exploitation mechanism involves parsing log files for session-related data patterns. The attacker would search for strings matching session token formats, authentication headers, or credential patterns within the accessible log directories. Detailed technical information can be found in the Hitachi Security Advisory SEC-2026-111.

Detection Methods for CVE-2025-5781

Indicators of Compromise

• Unusual read access patterns to application log files by non-administrative users
• Evidence of log file copying or exfiltration from Hitachi management software directories
• Anomalous session activity where a single session appears to originate from multiple source addresses
• Authentication events from unexpected internal IP addresses using valid session tokens

Detection Strategies

• Monitor file access events on Hitachi application log directories using file integrity monitoring (FIM) solutions
• Implement audit logging for log file access by non-administrative users
• Configure SIEM rules to detect session anomalies such as concurrent session usage from different endpoints
• Review access control lists on log file directories to identify overly permissive configurations

Monitoring Recommendations

• Enable detailed audit logging for all file system access to /opt/HiCommand/ and related Hitachi installation directories
• Configure alerting for bulk log file reads or copies outside of normal backup windows
• Implement user behavior analytics to detect privilege escalation attempts following log access
• Monitor network connections for unusual administrative activity on Hitachi management interfaces

How to Mitigate CVE-2025-5781

Immediate Actions Required

• Restrict file system permissions on Hitachi application log directories to administrative accounts only
• Review and remove unnecessary local user accounts from systems running affected Hitachi software
• Rotate all active sessions and credentials for Hitachi management interfaces
• Audit log file access history for suspicious activity patterns
• Apply the vendor-provided security patches as soon as possible

Patch Information

Hitachi has released security updates addressing this vulnerability. Users should upgrade to the following patched versions:

• Hitachi Ops Center API Configuration Manager: Upgrade to version 11.0.5-00 or later
• Hitachi Configuration Manager: Upgrade to version 11.0.5-00 or later
• Hitachi Device Manager: Upgrade to version 8.6.5-00 or later

For detailed patch information and download links, refer to the Hitachi Security Advisory SEC-2026-111.

Workarounds

• Implement strict file system access controls to limit log file read access to essential administrative accounts only
• Configure log rotation with secure deletion to minimize the exposure window for sensitive data in logs
• Deploy host-based intrusion detection to alert on unauthorized log file access
• Consider network segmentation to isolate systems running Hitachi management software from general user populations

# Example: Restrict log directory permissions (Linux)
chmod 700 /opt/HiCommand/logs/
chown root:root /opt/HiCommand/logs/
# Configure log rotation with secure deletion
echo "/opt/HiCommand/logs/*.log { daily rotate 7 compress delaycompress shred shredcycles 3 }" >> /etc/logrotate.d/hitachi