CVE-2024-33625
📋 TL;DR
CyberPower PowerPanel Business application contains a hard-coded JWT signing key, allowing attackers to forge authentication tokens and bypass security controls. This affects organizations using CyberPower PowerPanel Business software for power management. The vulnerability enables unauthorized access to power management systems.
💻 Affected Systems
- CyberPower PowerPanel Business
📦 What is this software?
Powerpanel by Cyberpower
⚠️ Risk & Real-World Impact
Worst Case
Attacker gains administrative access to power management systems, potentially causing physical damage to equipment, disrupting critical infrastructure, or manipulating power settings maliciously.
Likely Case
Unauthorized access to power management interfaces, allowing attackers to view sensitive system information, modify configurations, or disrupt power operations.
If Mitigated
Limited impact if systems are isolated from untrusted networks and have additional authentication layers, though the vulnerability remains present.
🎯 Exploit Status
Exploitation requires knowledge of the hard-coded key and JWT token structure, but tools for JWT manipulation are widely available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific version
Vendor Advisory: https://www.cyberpower.com/global/en/product/sku/powerpanel_business_for_windows#downloads
Restart Required: Yes
Instructions:
1. Download latest version from CyberPower website. 2. Install update following vendor instructions. 3. Restart system and verify new version is running.
🔧 Temporary Workarounds
Network Isolation
allRestrict network access to PowerPanel Business systems to only trusted internal networks
Additional Authentication Layer
allImplement VPN or multi-factor authentication for accessing PowerPanel interfaces
🧯 If You Can't Patch
- Isolate affected systems from untrusted networks using firewalls or network segmentation
- Monitor authentication logs for suspicious JWT token usage or unauthorized access attempts
🔍 How to Verify
Check if Vulnerable:
Check application version against vendor advisory; if running unpatched version, system is vulnerableCheck Version:
Check PowerPanel Business application 'About' section or installed programs listVerify Fix Applied:
Verify application version matches patched version from vendor advisory and test authentication with invalid tokens📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts followed by successful access
- JWT tokens with unusual signatures or timestamps
- Access from unexpected IP addresses
Network Indicators:
- Unusual authentication traffic patterns
- Requests with manipulated JWT headers
SIEM Query:
source="powerpanel" AND (event_type="authentication" AND result="success") AND NOT (user IN allowed_users)🔗 References
- https://www.cisa.gov/news-events/ics-advisories/icsa-24-123-01
- https://www.cyberpower.com/global/en/product/sku/powerpanel_business_for_windows#downloads
- https://www.cisa.gov/news-events/ics-advisories/icsa-24-123-01
- https://www.cyberpower.com/global/en/product/sku/powerpanel_business_for_windows#downloads
