CVE-2024-22222
📋 TL;DR
This CVE describes an OS command injection vulnerability in Dell Unity's svc_udoctor utility. Authenticated local attackers can execute arbitrary operating system commands with the application's privileges. Dell Unity, Unity VSA, and Unity XT versions before 5.4 are affected.
💻 Affected Systems
- Dell Unity
- Dell Unity VSA
- Dell Unity XT
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise allowing attacker to execute arbitrary commands with application privileges, potentially leading to data theft, system manipulation, or lateral movement.
Likely Case
Privilege escalation or unauthorized command execution by authenticated malicious users with local access to the system.
If Mitigated
Limited impact due to authentication requirements and local access constraints, with proper monitoring detecting unusual command execution.
🎯 Exploit Status
Requires authenticated local access and knowledge of the vulnerable utility. No public exploit code identified in references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 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 version 5.4 or later from Dell support. 2. Follow Dell's upgrade procedures for your specific Unity model. 3. Apply the update through the Unity management interface. 4. Restart the system as required by the update process.
🔧 Temporary Workarounds
Restrict access to svc_udoctor
linuxLimit access to the vulnerable utility through file permissions or access controls.
chmod 700 /path/to/svc_udoctor
chown root:root /path/to/svc_udoctor
Implement least privilege
allEnsure users have minimal necessary privileges and monitor for unusual command execution.
🧯 If You Can't Patch
- Implement strict access controls to limit who can authenticate locally to the system.
- Monitor system logs for unusual command execution patterns and unauthorized access attempts.
🔍 How to Verify
Check if Vulnerable:
Check Dell Unity OS version via management interface or CLI. Versions below 5.4 are vulnerable.Check Version:
Check version in Unity Unisphere interface under System > Information or use appropriate CLI commands for your Unity model.Verify Fix Applied:
Confirm system is running Dell Unity OS version 5.4 or later through the management interface.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns from svc_udoctor utility
- Multiple failed authentication attempts followed by successful local login
- Commands executed with application privileges that deviate from normal operations
Network Indicators:
- Not applicable - local exploitation only
SIEM Query:
source="unity_logs" AND (process="svc_udoctor" AND command="*;*" OR command="*|*" OR command="*`*" OR command="*$(*)")🔗 References
- 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
- 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
