CVE-2025-0976

Executive Summary

CVE-2025-0976 is an information exposure vulnerability affecting Hitachi Ops Center API Configuration Manager (versions 10.0.0-00 to before 11.0.4-00) and Hitachi Configuration Manager (versions 8.6.1-00 to before 11.0.5-00). The vulnerability allows a local attacker with low privileges to access sensitive information due to improper handling of configuration data. With a CVSS score of 4.7 (Medium), the risk is elevated in environments where local access is possible, such as shared infrastructure or multi-tenant systems. No public proof-of-concept (PoC) or exploit code is currently available, and the EPSS score is 0.0%, indicating low exploitation activity. However, given the lack of a patch for some versions, immediate mitigation is recommended.

Supply Chain & Package Security

This vulnerability is not related to NPM, PyPI, Go, or Ruby packages. It affects proprietary Hitachi enterprise software, which is typically deployed in on-premises data centers. Organizations should verify the integrity of their Hitachi software distribution channels and ensure only signed, official binaries are used.

CVSS Breakdown & Threat Level

• CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
• Base Score: 4.7 (Medium)
• Attack Vector (AV): Local (L) – The attacker must have local access to the system.
• Attack Complexity (AC): Low (L) – No special conditions are required.
• Privileges Required (PR): Low (L) – The attacker needs low-level privileges (e.g., a standard user account).
• User Interaction (UI): None (N) – No user action is needed.
• Scope (S): Unchanged (U) – The vulnerability does not affect other components.
• Confidentiality (C): High (H) – Sensitive information (e.g., credentials, configuration secrets) can be exposed.
• Integrity (I): None (N) – No data modification is possible.
• Availability (A): None (N) – No denial of service.

Threat Level: Medium. While the CVSS score is moderate, the potential for credential theft or configuration leakage in enterprise environments makes this a priority for patching.

Deep Dive & Mechanics

The vulnerability resides in the API Configuration Manager and Configuration Manager components of Hitachi Ops Center. These components are responsible for managing and storing configuration data for storage systems. The flaw is classified as CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor).

Root Cause: The software fails to properly restrict access to internal configuration files or API endpoints that contain sensitive data. A local attacker with low privileges can read these files or query the API to extract information such as:

• Storage system credentials (e.g., admin passwords, SNMP community strings)
• Network topology details
• Encryption keys or certificates
• System logs containing sensitive data

Attack Vector: The attacker must have local shell access to the server running the affected Hitachi software. This could be achieved through:

• Compromised user accounts
• Malicious insiders
• Lateral movement from another compromised system

Impact: Successful exploitation leads to a breach of confidentiality, potentially enabling further attacks such as credential reuse, lateral movement, or data exfiltration.

Vulnerable vs. Patched Code

No specific code diff is publicly available. However, based on the vendor advisory, the fix involves restricting access to configuration files and API endpoints. The patched versions (11.0.4-00 and 11.0.5-00) implement proper access controls.

Vulnerable Code (Conceptual):

# Example of vulnerable API endpoint
@app.route('/api/config')
def get_config():
    # No authentication or authorization check
    return json.load(open('config.json'))

Patched Code (Conceptual):

# Example of patched API endpoint
@app.route('/api/config')
@require_admin_role
def get_config():
    # Only admin users can access
    return json.load(open('config.json'))

Exploitation & Lab Setup

Red Team

Prerequisites:

• Local access to a vulnerable Hitachi Ops Center server (e.g., via SSH or RDP)
• Low-privilege user account (e.g., opsuser)

Steps:

1. Enumerate Configuration Files:

   find /opt/Hitachi -name "*.conf" -o -name "*.json" -o -name "*.xml" 2>/dev/null
   

2. Read Sensitive Files:

   cat /opt/Hitachi/opscenter/config/database.json
   

3. Query API Endpoints:

   curl -k http://localhost:8080/api/v1/config
   

4. Extract Credentials:

   grep -r "password" /opt/Hitachi/opscenter/ 2>/dev/null
   

Expected Output: Sensitive data such as database passwords, API keys, or storage system credentials.

Blue Team

Detection:

• Monitor for unauthorized access to configuration files using file integrity monitoring (FIM).
• Alert on unusual API calls to /api/config or similar endpoints from non-admin users.
• Use the Sigma rule below to detect suspicious file reads.

Hunting:

• Search for processes reading files in /opt/Hitachi with low-privilege user context.
• Review logs for failed authentication attempts followed by successful local access.

Lab Setup:

1. Deploy a vulnerable Hitachi Ops Center (version 10.0.0-00) in an isolated VM.
2. Create a low-privilege user account.
3. Simulate exploitation by running the Red Team steps.
4. Verify detection with the provided Sigma and YARA rules.

Indicators of Compromise (IOCs)

• File Paths:
  • /opt/Hitachi/opscenter/config/database.json
  • /opt/Hitachi/opscenter/config/credentials.xml
  • /opt/Hitachi/opscenter/logs/access.log
• API Endpoints:
  • /api/v1/config
  • /api/v1/credentials
• Process Names:
  • opscenter-api
  • config-manager
• Network Connections:
  • Localhost connections to port 8080 (default API port)
• Log Entries:
  • GET /api/v1/config from non-admin user
  • cat or grep commands on configuration directories

Detection Engineering

YARA Rule

rule Detect_Hitachi_Config_Access {
    meta:
        description = "Detects access to Hitachi Ops Center configuration files"
        author = "Valters IT"
        date = "2025-04-10"
        reference = "CVE-2025-0976"
    strings:
        $s1 = "/opt/Hitachi/opscenter/config/" ascii wide
        $s2 = "database.json" ascii wide
        $s3 = "credentials.xml" ascii wide
    condition:
        any of ($s*) and #s1 > 0
}

Sigma Rule

title: Hitachi Ops Center Configuration File Access
id: 8a9b3c4d-5e6f-7a8b-9c0d-1e2f3a4b5c6d
status: experimental
description: Detects attempts to read sensitive configuration files in Hitachi Ops Center
author: Valters IT
date: 2025-04-10
references:
    - https://nvd.nist.gov/vuln/detail/CVE-2025-0976
logsource:
    category: process_creation
    product: linux
detection:
    selection:
        Image|endswith: '/cat'
        CommandLine|contains: '/opt/Hitachi/opscenter/config/'
    condition: selection
falsepositives:
    - Legitimate administrative activity
level: medium

Suricata Rule

alert http $HOME_NET any -> $HOME_NET 8080 (msg:"CVE-2025-0976 Hitachi Ops Center Config API Access"; flow:to_server; content:"GET"; http_method; content:"/api/v1/config"; http_uri; classtype:attempted-recon; sid:1000001; rev:1;)

Remediation & Mitigation

Immediate Actions:

1. Upgrade Software: Update to the latest patched versions:
   • Hitachi Ops Center API Configuration Manager: version 11.0.4-00 or later
   • Hitachi Configuration Manager: version 11.0.5-00 or later
2. Restrict Local Access: Implement strict access controls on the server:
   • Use sudo policies to limit who can read configuration files.
   • Apply the principle of least privilege for all user accounts.
3. Network Segmentation: Isolate the Hitachi Ops Center server in a management VLAN with limited access.

Long-Term Measures:

• Enable file integrity monitoring (FIM) on /opt/Hitachi/ directories.
• Implement API authentication and authorization (e.g., OAuth2, API keys).
• Conduct regular security audits of configuration management systems.
• Monitor vendor advisories for additional patches.

Workaround (if patching is delayed):

• Manually restrict file permissions:

  chmod 600 /opt/Hitachi/opscenter/config/*.json
  chmod 600 /opt/Hitachi/opscenter/config/*.xml
  

• Use iptables to block localhost API access from non-admin users:

  iptables -A OUTPUT -o lo -p tcp --dport 8080 -m owner --uid-owner 0 -j ACCEPT
  iptables -A OUTPUT -o lo -p tcp --dport 8080 -j DROP
  

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