CVE-2024-38481
📋 TL;DR
Dell iDRAC Service Module versions 5.3.0.0 and earlier contain an out-of-bounds read vulnerability that could allow a privileged local attacker to execute arbitrary code, potentially causing denial of service. This affects systems running the vulnerable iDRAC Service Module software. Attackers need local privileged access to exploit this vulnerability.
💻 Affected Systems
- Dell iDRAC Service Module
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Privileged local attacker gains arbitrary code execution on the host system, potentially leading to complete system compromise, data theft, or persistent backdoor installation.
Likely Case
Local attacker with administrative privileges causes denial of service by crashing the iDRAC Service Module or host system processes.
If Mitigated
With proper access controls limiting local administrative privileges, impact is limited to denial of service from authorized administrators.
🎯 Exploit Status
Exploitation requires local privileged access. No public exploit code has been reported as of the advisory date.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 5.4.0.0 or later
Vendor Advisory: https://www.dell.com/support/kbdoc/en-us/000227444/dsa-2024-086-security-update-for-dell-idrac-service-module-for-memory-corruption-vulnerabilities
Restart Required: Yes
Instructions:
1. Download the latest iDRAC Service Module from Dell Support. 2. Stop the iDRAC Service Module service. 3. Install the update. 4. Restart the system or service as prompted.
🔧 Temporary Workarounds
Remove iDRAC Service Module
allUninstall the iDRAC Service Module if not required for management functionality
Windows: Control Panel > Programs > Uninstall iDRAC Service Module
Linux: Use package manager to remove idrac-service-module package
Restrict Local Administrative Access
allLimit local administrative privileges to trusted personnel only
🧯 If You Can't Patch
- Implement strict access controls to limit local administrative privileges
- Monitor for unusual process behavior or crashes related to iDRAC Service Module
🔍 How to Verify
Check if Vulnerable:
Check iDRAC Service Module version. If version is 5.3.0.0 or earlier, system is vulnerable.Check Version:
Windows: Open iDRAC Service Module GUI or check installed programs list. Linux: rpm -qa | grep idrac-service-module or dpkg -l | grep idrac-service-moduleVerify Fix Applied:
Verify iDRAC Service Module version is 5.4.0.0 or later after update installation.📡 Detection & Monitoring
Log Indicators:
- Unexpected crashes or restarts of iDRAC Service Module processes
- Unusual process creation from iDRAC Service Module components
- Access denied errors in iDRAC Service Module logs
Network Indicators:
- Unusual outbound connections from systems running iDRAC Service Module
SIEM Query:
Process creation where parent process contains 'idrac' or 'dsm' AND (command line contains unusual arguments OR destination IP is suspicious)