CVE-2022-48224
📋 TL;DR
This vulnerability allows standard users to replace files in the Acuant AcuFill SDK installation directory due to insecure permissions. When these files are executed with elevated privileges, attackers can achieve arbitrary code execution and privilege escalation. Organizations using affected versions of AcuFill SDK are at risk.
💻 Affected Systems
- Acuant AcuFill SDK
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise where an attacker gains administrative privileges, installs persistent malware, accesses sensitive data, and moves laterally across the network.
Likely Case
Local privilege escalation allowing attackers to bypass security controls, install unauthorized software, or access restricted resources on the affected system.
If Mitigated
Limited impact with proper access controls and monitoring, potentially detected during file modification attempts.
🎯 Exploit Status
Exploitation requires local user access but is straightforward - attackers simply need to replace files in the vulnerable directory.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 10.22.02.03 and later
Vendor Advisory: https://acuant.com
Restart Required: Yes
Instructions:
1. Download AcuFill SDK version 10.22.02.03 or later from Acuant. 2. Uninstall previous versions. 3. Install the updated version. 4. Restart affected systems.
🔧 Temporary Workarounds
Restrict directory permissions
windowsManually adjust permissions on the AcuFill SDK installation directory to prevent write access by standard users.
icacls "C:\Program Files\Acuant\AcuFill SDK" /deny Users:(OI)(CI)W
🧯 If You Can't Patch
- Implement strict access controls and monitoring on the AcuFill SDK installation directory
- Limit standard user access to systems with AcuFill SDK installed
🔍 How to Verify
Check if Vulnerable:
Check AcuFill SDK version and verify if installed directory (typically C:\Program Files\Acuant\AcuFill SDK) has write permissions for standard users.Check Version:
Check AcuFill SDK version through installed programs list or application interface.Verify Fix Applied:
Verify AcuFill SDK version is 10.22.02.03 or later and check that installation directory permissions restrict write access for standard users.📡 Detection & Monitoring
Log Indicators:
- File modification events in AcuFill SDK directory by standard users
- Unexpected privilege escalation events
Network Indicators:
- Unusual outbound connections from systems with AcuFill SDK
SIEM Query:
EventID=4663 AND ObjectName LIKE '%Acuant%AcuFill SDK%' AND SubjectUserName NOT IN (admin_users)