CVE-2023-44208
📋 TL;DR
This vulnerability in Acronis Cyber Protect Home Office for Windows allows unauthorized users to access and manipulate sensitive information due to missing authorization checks. It affects Windows users running versions before build 40713. Attackers could potentially read or modify protected data without proper credentials.
💻 Affected Systems
- Acronis Cyber Protect Home Office
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of all protected backup data including personal files, system images, and credentials stored by Acronis Cyber Protect Home Office.
Likely Case
Unauthorized access to sensitive backup files and system information stored by the application.
If Mitigated
Limited impact with proper network segmentation and access controls preventing unauthorized users from reaching the vulnerable service.
🎯 Exploit Status
The vulnerability involves missing authorization checks, making exploitation straightforward once an attacker gains access to the system.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Build 40713 or later
Vendor Advisory: https://security-advisory.acronis.com/advisories/SEC-6587
Restart Required: Yes
Instructions:
1. Open Acronis Cyber Protect Home Office. 2. Check for updates in the application settings. 3. Install update to build 40713 or later. 4. Restart the computer to complete the installation.
🔧 Temporary Workarounds
Network Access Restriction
windowsRestrict network access to Acronis Cyber Protect Home Office service to prevent remote exploitation
Use Windows Firewall to block inbound connections to Acronis services on non-essential ports
Disable Unnecessary Features
windowsDisable network sharing and remote management features if not required
Navigate to Acronis settings > Network and disable 'Allow remote connections' if enabled
🧯 If You Can't Patch
- Implement strict access controls to limit who can access the system running Acronis Cyber Protect Home Office
- Monitor for suspicious access attempts to Acronis services and review access logs regularly
🔍 How to Verify
Check if Vulnerable:
Open Acronis Cyber Protect Home Office, go to Help > About and check if build number is lower than 40713Check Version:
Check Acronis Cyber Protect Home Office version in Help > About menuVerify Fix Applied:
After updating, verify the build number is 40713 or higher in Help > About📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to Acronis services
- Unexpected file access patterns in backup directories
Network Indicators:
- Unusual network traffic to Acronis service ports from unauthorized sources
SIEM Query:
source="acronis" AND (event_type="access_denied" OR event_type="unauthorized_access")