CVE-2021-32023
📋 TL;DR
This vulnerability allows an attacker to execute arbitrary code with SYSTEM-level privileges by exploiting a flaw in the BlackBerry Protect message broker on Windows. It affects BlackBerry Protect for Windows versions 1574 and earlier, potentially giving attackers complete control over affected systems.
💻 Affected Systems
- BlackBerry Protect for Windows
📦 What is this software?
Protect by Blackberry
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with SYSTEM privileges, allowing installation of persistent malware, data theft, lateral movement, and complete control of the endpoint.
Likely Case
Local privilege escalation leading to administrative access, enabling attackers to disable security controls, steal credentials, and establish persistence.
If Mitigated
Limited impact if proper network segmentation, least privilege principles, and endpoint protection are in place, though local compromise risk remains.
🎯 Exploit Status
Requires local access to the system. No public exploit code has been disclosed as of the advisory date.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 1575 or later
Vendor Advisory: https://support.blackberry.com/kb/articleDetail?articleNumber=000088685
Restart Required: Yes
Instructions:
1. Download BlackBerry Protect version 1575 or later from BlackBerry support portal. 2. Install the update following standard deployment procedures. 3. Restart affected Windows systems to complete the update.
🔧 Temporary Workarounds
Restrict local access
windowsLimit physical and remote access to systems running BlackBerry Protect to authorized users only.
Network segmentation
allSegment systems running BlackBerry Protect from critical infrastructure and sensitive data.
🧯 If You Can't Patch
- Implement strict access controls and monitor for suspicious local privilege escalation attempts.
- Consider temporary removal of BlackBerry Protect if patching is not feasible, replacing with alternative endpoint protection.
🔍 How to Verify
Check if Vulnerable:
Check BlackBerry Protect version in Windows Programs and Features or via the BlackBerry Protect console. Versions 1574 and earlier are vulnerable.Check Version:
wmic product where "name like 'BlackBerry Protect%'" get versionVerify Fix Applied:
Verify BlackBerry Protect version is 1575 or later after update installation.📡 Detection & Monitoring
Log Indicators:
- Unusual process creation from BlackBerry Protect services
- Failed privilege escalation attempts in Windows Event Logs
- Suspicious network connections from BlackBerry Protect processes
Network Indicators:
- Unexpected outbound connections from BlackBerry Protect services
- Lateral movement attempts from systems running BlackBerry Protect
SIEM Query:
source="Windows Security" EventID=4688 ProcessName="*BlackBerry*" OR source="BlackBerry Protect" event_type="privilege_escalation"