CVE-2024-47239
📋 TL;DR
Dell PowerScale OneFS versions 8.2.2.x through 9.9.0.0 contain an uncontrolled resource consumption vulnerability that allows remote low-privileged attackers to cause denial of service. This affects Dell PowerScale storage systems running vulnerable OneFS versions. Attackers can exhaust system resources without authentication, disrupting storage services.
💻 Affected Systems
- Dell PowerScale OneFS
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system unavailability causing storage service disruption, data inaccessibility, and potential business continuity impact.
Likely Case
Degraded performance or temporary service interruption affecting storage operations until system resources recover.
If Mitigated
Minimal impact with proper network segmentation, rate limiting, and monitoring in place.
🎯 Exploit Status
Low-privileged remote access required, but exploit complexity appears low based on vulnerability description.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 9.9.0.1 and later
Vendor Advisory: https://www.dell.com/support/kbdoc/en-us/000269590/dsa-2024-480-security-update-for-dell-powerscale-onefs-security-vulnerability
Restart Required: Yes
Instructions:
1. Review Dell advisory DSA-2024-480. 2. Download appropriate OneFS update. 3. Apply update following Dell PowerScale update procedures. 4. Reboot system as required.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to PowerScale management interfaces to trusted networks only.
Rate Limiting
allImplement network rate limiting on PowerScale interfaces to prevent resource exhaustion attacks.
🧯 If You Can't Patch
- Implement strict network access controls to limit exposure to trusted sources only.
- Deploy monitoring for unusual resource consumption patterns and implement automated alerting.
🔍 How to Verify
Check if Vulnerable:
Check OneFS version via CLI: 'isi version' or web interface. If version is between 8.2.2.x and 9.9.0.0 inclusive, system is vulnerable.Check Version:
isi versionVerify Fix Applied:
Verify OneFS version is 9.9.0.1 or later using 'isi version' command.📡 Detection & Monitoring
Log Indicators:
- Unusual resource consumption patterns
- Multiple failed connection attempts
- System performance degradation alerts
Network Indicators:
- High volume of requests to PowerScale interfaces
- Unusual traffic patterns from untrusted sources
SIEM Query:
source="powerscale" AND (event_type="resource_exhaustion" OR event_type="performance_degradation")