CVE-2024-23497
📋 TL;DR
An out-of-bounds write vulnerability in Intel Ethernet Network Controller drivers allows authenticated local users to write beyond allocated memory boundaries. This could enable privilege escalation on affected Linux systems. The vulnerability affects systems using specific Intel Ethernet hardware with vulnerable driver versions.
💻 Affected Systems
- Intel Ethernet Network Controllers and Adapters
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise via local privilege escalation to root, potentially leading to complete control of the affected system.
Likely Case
Local privilege escalation allowing authenticated users to gain elevated privileges on the system.
If Mitigated
Limited impact if proper access controls restrict local user accounts and driver loading is controlled.
🎯 Exploit Status
Requires local authenticated access and knowledge of driver exploitation techniques. No public exploit code known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 28.3 or later
Vendor Advisory: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00918.html
Restart Required: Yes
Instructions:
1. Check current driver version. 2. Update to Intel Ethernet driver version 28.3 or later. 3. Reboot system to load new driver.
🔧 Temporary Workarounds
Restrict driver loading
linuxPrevent loading of vulnerable Intel Ethernet drivers via kernel module blacklisting
echo 'blacklist ixgbe' >> /etc/modprobe.d/blacklist.conf
echo 'blacklist i40e' >> /etc/modprobe.d/blacklist.conf
update-initramfs -u
Restrict local user access
allLimit local user accounts and implement strict access controls
🧯 If You Can't Patch
- Implement strict access controls to limit local user accounts
- Monitor for suspicious privilege escalation attempts and driver manipulation
🔍 How to Verify
Check if Vulnerable:
Check Intel Ethernet driver version: modinfo ixgbe | grep version OR modinfo i40e | grep versionCheck Version:
modinfo ixgbe | grep version || modinfo i40e | grep versionVerify Fix Applied:
Verify driver version is 28.3 or higher: modinfo ixgbe | grep version📡 Detection & Monitoring
Log Indicators:
- Kernel logs showing driver crashes or memory corruption
- Failed privilege escalation attempts
- Unexpected driver module loading
Network Indicators:
- None - local exploit only
SIEM Query:
source="kernel" AND ("ixgbe" OR "i40e") AND ("panic" OR "oops" OR "segfault")