CVE-2024-0168

7.8 HIGH

📋 TL;DR

This vulnerability allows authenticated attackers to execute arbitrary operating system commands with root privileges on Dell Unity storage systems. It affects Dell Unity, Unity VSA, and Unity XT versions prior to 5.4. Attackers need valid credentials to exploit this command injection flaw in the svc_oscheck utility.

💻 Affected Systems

Products:
  • Dell Unity
  • Dell Unity VSA
  • Dell Unity XT
Versions: All versions prior to 5.4
Operating Systems: Dell Unity OS
Default Config Vulnerable: ⚠️ Yes
Notes: Requires authenticated access to the system management interface.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise with root-level access, allowing data theft, system destruction, or lateral movement to other systems.

🟠

Likely Case

Privilege escalation leading to unauthorized access to sensitive storage data and configuration manipulation.

🟢

If Mitigated

Limited impact if strong authentication controls and network segmentation prevent unauthorized access.

🌐 Internet-Facing: MEDIUM - While authentication is required, exposed management interfaces could be targeted.
🏢 Internal Only: HIGH - Internal attackers with credentials can achieve full system compromise.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW - Simple command injection once authenticated.

Exploitation requires valid user credentials and access to the vulnerable utility.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 5.4 or later

Vendor Advisory: https://www.dell.com/support/kbdoc/en-us/000222010/dsa-2024-042-dell-unity-dell-unity-vsa-and-dell-unity-xt-security-update-for-multiple-vulnerabilities

Restart Required: Yes

Instructions:

1. Download Dell Unity OS 5.4 or later from Dell Support. 2. Apply the update through the Unity management interface. 3. Reboot the system as required by the update process.

🔧 Temporary Workarounds

Restrict Management Access

all

Limit access to Unity management interfaces to trusted networks and users only.

Implement Strong Authentication

all

Enforce multi-factor authentication and strong password policies for all management accounts.

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate Unity systems from untrusted networks.
  • Monitor and audit all authenticated sessions to the Unity management interface for suspicious activity.

🔍 How to Verify

Check if Vulnerable:

Check Unity OS version via management interface: System > Settings > About. If version is below 5.4, system is vulnerable.

Check Version:

ssh admin@unity-system 'show system version'

Verify Fix Applied:

After patching, verify version shows 5.4 or higher in System > Settings > About.

📡 Detection & Monitoring

Log Indicators:

  • Unusual command execution patterns in system logs
  • Multiple failed authentication attempts followed by successful login
  • Execution of svc_oscheck with unusual parameters

Network Indicators:

  • Unusual outbound connections from Unity management interface
  • Traffic patterns indicating command injection attempts

SIEM Query:

source="unity_logs" AND (event="command_execution" OR process="svc_oscheck") AND parameters CONTAINS special_chars

🔗 References

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