CVE-2024-42426
📋 TL;DR
Dell PowerScale OneFS versions 9.5.0.x through 9.8.0.x contain an uncontrolled resource consumption vulnerability. A low-privilege remote attacker could exploit this to cause denial of service by exhausting system resources. Organizations running affected Dell PowerScale OneFS storage systems are impacted.
💻 Affected Systems
- Dell PowerScale OneFS
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system unavailability due to resource exhaustion, disrupting all storage services and potentially affecting dependent applications.
Likely Case
Degraded performance or temporary service interruptions affecting specific storage operations.
If Mitigated
Minimal impact with proper network segmentation and resource monitoring in place.
🎯 Exploit Status
Exploitation requires low-privilege remote access. No public exploit code available at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions beyond 9.8.0.x (check Dell advisory for specific patched versions)
Vendor Advisory: https://www.dell.com/support/kbdoc/en-in/000256645/dsa-2024-453-security-update-for-dell-powerscale-onefs-multiple-security-vulnerabilities
Restart Required: Yes
Instructions:
1. Review Dell advisory DSA-2024-453. 2. Download appropriate OneFS update from Dell support. 3. Apply update following Dell's documented upgrade procedures. 4. Reboot system as required.
🔧 Temporary Workarounds
Network Access Restriction
allRestrict network access to PowerScale management interfaces to trusted networks only.
Configure firewall rules to limit access to PowerScale management IPs/ports
Resource Monitoring
allImplement enhanced monitoring for resource consumption on PowerScale nodes.
Set up alerts for unusual CPU/memory/disk usage patterns
🧯 If You Can't Patch
- Implement strict network segmentation to isolate PowerScale systems from untrusted networks.
- Enforce least privilege access controls and monitor for unusual authentication patterns.
🔍 How to Verify
Check if Vulnerable:
Check OneFS version via CLI: 'isi version' or web interface System Health > Software.Check Version:
isi versionVerify Fix Applied:
Verify version is updated beyond affected range and monitor for resource consumption anomalies.📡 Detection & Monitoring
Log Indicators:
- Unusual resource consumption patterns
- Multiple failed authentication attempts from single source
- System performance degradation alerts
Network Indicators:
- Unusual traffic patterns to PowerScale management interfaces
- Multiple connections from single IP to vulnerable services
SIEM Query:
source="powerscale" AND (event_type="resource_exhaustion" OR cpu_usage>90 OR memory_usage>90)