CVE-2025-30101
📋 TL;DR
A TOCTOU race condition vulnerability in Dell PowerScale OneFS allows unauthenticated attackers with local access to cause denial of service or tamper with information. This affects Dell PowerScale OneFS versions 9.8.0.0 through 9.10.1.0. Organizations using these versions in their storage infrastructure are at risk.
💻 Affected Systems
- Dell PowerScale OneFS
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system crash leading to extended downtime of storage services, potential data corruption or unauthorized modification of stored information.
Likely Case
Local denial of service affecting specific storage operations, potentially disrupting dependent applications and services.
If Mitigated
Minimal impact if proper network segmentation and access controls prevent local attacker access to vulnerable systems.
🎯 Exploit Status
Exploitation requires precise timing (race condition) and local system access. No authentication needed once local access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 9.10.1.0 (check Dell advisory for specific fixed version)
Vendor Advisory: https://www.dell.com/support/kbdoc/en-us/000317419/dsa-2025-192-security-update-for-dell-powerscale-onefs-for-multiple-security-vulnerabilities
Restart Required: Yes
Instructions:
1. Review Dell advisory DSA-2025-192. 2. Download appropriate OneFS update from Dell support portal. 3. Apply update following Dell's OneFS upgrade procedures. 4. Reboot system as required by update process.
🔧 Temporary Workarounds
Restrict Local Access
allLimit local system access to trusted administrators only through strict access controls and monitoring.
Network Segmentation
allIsolate PowerScale systems on separate network segments with strict firewall rules preventing unauthorized access.
🧯 If You Can't Patch
- Implement strict access controls to limit local access to only essential administrative personnel
- Monitor system logs for unusual local access patterns or denial of service attempts
🔍 How to Verify
Check if Vulnerable:
Check OneFS version via CLI: 'isi version' or web interface. If version is between 9.8.0.0 and 9.10.1.0 inclusive, system is vulnerable.Check Version:
isi versionVerify Fix Applied:
After patching, verify version is above 9.10.1.0 using 'isi version' command.📡 Detection & Monitoring
Log Indicators:
- Multiple rapid file access attempts from single source
- System crash or restart logs without clear cause
- Unusual process timing patterns in system logs
Network Indicators:
- Unusual local network traffic patterns to storage systems
- Multiple failed local authentication attempts followed by system issues
SIEM Query:
source="powerscale_logs" AND (event_type="system_crash" OR event_type="unusual_file_access")