CVE-2020-8282
📋 TL;DR
This CVE describes a Cross-Site Request Forgery (CSRF) vulnerability in EdgePower 24V/54V firmware that allows attackers to execute unauthorized remote code. Affected users are those running firmware v1.7.0 or earlier on EdgePower devices. The vulnerability exists due to missing CSRF protections in the web interface.
💻 Affected Systems
- EdgePower 24V
- EdgePower 54V
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the EdgePower device allowing attacker to execute arbitrary code, modify configurations, disrupt power management, and potentially pivot to other network devices.
Likely Case
Unauthorized configuration changes leading to service disruption, data manipulation, or installation of persistent backdoors on the power management device.
If Mitigated
Limited impact with proper network segmentation and access controls, though the vulnerability remains present in the firmware.
🎯 Exploit Status
Exploitation requires the attacker to trick an authenticated user into visiting a malicious webpage that sends crafted requests to the EdgePower web interface.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v1.7.1 or later
Vendor Advisory: https://community.ui.com/releases/Security-advisory-bulletin-016-016/40c1d33d-785e-44d5-8e6c-56a8addef1bc
Restart Required: Yes
Instructions:
1. Download firmware v1.7.1 or later from UI.com 2. Log into EdgePower web interface 3. Navigate to Settings > Firmware 4. Upload and install the new firmware 5. Reboot the device
🔧 Temporary Workarounds
Network Segmentation
allIsolate EdgePower devices on separate VLANs with strict firewall rules limiting access to authorized management stations only.
Browser Security Extensions
allDeploy browser extensions that block CSRF attempts on management workstations.
🧯 If You Can't Patch
- Implement strict network access controls to limit which IP addresses can reach the EdgePower web interface
- Use separate browser profiles or dedicated management workstations for accessing EdgePower devices
🔍 How to Verify
Check if Vulnerable:
Log into EdgePower web interface and check firmware version under Settings > System InformationCheck Version:
curl -k https://[edgepower-ip]/api/system/info | grep versionVerify Fix Applied:
Verify firmware version is v1.7.1 or later and test CSRF protection by attempting to submit forms without proper tokens📡 Detection & Monitoring
Log Indicators:
- Multiple failed authentication attempts followed by configuration changes
- Unusual configuration modifications from unexpected IP addresses
Network Indicators:
- HTTP POST requests to EdgePower web interface without Referer headers or CSRF tokens
- Traffic from user workstations to EdgePower devices following visits to suspicious websites
SIEM Query:
source="edgepower-logs" AND (action="config_change" OR action="firmware_update") AND user_agent CONTAINS "Mozilla" AND NOT referer CONTAINS "edgepower-ip"