CVE-2022-32764
📋 TL;DR
A race condition vulnerability in Intel Data Streaming Accelerator (DSA) software allows authenticated local users to potentially escalate privileges. This affects systems running vulnerable versions of Intel DSA software, primarily impacting servers and workstations with Intel hardware acceleration capabilities.
💻 Affected Systems
- Intel Data Streaming Accelerator (DSA) software
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An authenticated attacker gains root/system-level privileges, potentially compromising the entire system and accessing sensitive data or deploying persistent malware.
Likely Case
Privileged user escalates to higher privileges, enabling unauthorized access to restricted resources or system modifications.
If Mitigated
With proper access controls and monitoring, impact is limited to isolated privilege escalation attempts that can be detected and contained.
🎯 Exploit Status
Requires local authenticated access and race condition timing to exploit successfully.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 22.4.26 or later
Vendor Advisory: http://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00725.html
Restart Required: Yes
Instructions:
1. Download Intel DSA version 22.4.26 or later from Intel's website. 2. Stop any DSA-related services. 3. Install the updated driver package. 4. Reboot the system to ensure changes take effect.
🔧 Temporary Workarounds
Restrict local user access
allLimit local user accounts to only trusted personnel and implement least privilege principles.
Disable DSA if not needed
linuxIf Intel DSA functionality is not required, disable or remove the driver.
sudo modprobe -r idxd
sudo systemctl disable idxd
🧯 If You Can't Patch
- Implement strict access controls and monitor for privilege escalation attempts
- Isolate affected systems from critical network segments and limit user access
🔍 How to Verify
Check if Vulnerable:
Check Intel DSA driver version using 'idxd-config --version' on Linux or Device Manager on Windows.Check Version:
idxd-config --versionVerify Fix Applied:
Verify installed version is 22.4.26 or later using the same version check command.📡 Detection & Monitoring
Log Indicators:
- Unusual privilege escalation events
- Multiple rapid DSA driver access attempts
- Failed authentication attempts followed by successful privilege changes
Network Indicators:
- Not applicable - local exploit only
SIEM Query:
EventID=4688 OR ProcessName='idxd' AND (CommandLine LIKE '%privilege%' OR ParentProcessName='cmd.exe')